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  • Save $331.01
    Lifesafety Power FPO75-B100C8PD8PE4M PSB 75W 6A/12V or 3A/24V 2n
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    Lifesafety Power FPO75-B100C8PD8PE4M

    Lifesafety Power FPO75-B100C8PD8PE4M PSB 75W 6A/12V or 3A/24V 2n

    75W power supply board (PSB) designed for distributed access control and electronic lock powering in multi-door installations

    • Dual 12V/6A and 24V/3A outputs power EM locks and solenoid strikes from one board.
    • 8 Class 2 relay outputs at 2.5A each drive electromechanical locks without external relays.
    • Adjustable 5–18V/4A secondary channel supports legacy readers and sensors on a single supply.
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  • Save $183.01
    Lifesafety Power FPO75-B100C8PE1 75W power supply 6A/12V or 3A/2
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    Lifesafety Power FPO75-B100C8PE1

    Lifesafety Power FPO75-B100C8PE1 75W power supply 6A/12V or 3A/2

    75W regulated power supply designed for access control and door lock circuits in security installations

    • Eight independent 2.5A relay outputs eliminate external relay modules in multi-door installs.
    • Dual primary voltage (12VDC/6A or 24VDC/3A) supports mixed lock ecosystems from one supply.
    • Adjustable 5–18V secondary output powers readers or sensors without tapping main lock circuits.
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    $536.00 $352.99 Save $183.01
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  • Save $319.01
    Lifesafety Power FPO75-B100C8PE2H 75W power supply 6A/12V or 3A
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    Lifesafety Power FPO75-B100C8PE2H

    Lifesafety Power FPO75-B100C8PE2H 75W power supply 6A/12V or 3A

    75W managed power supply engineered for door access and lock control integration in security installations

    • Delivers 75W at 12VDC/6A or 24VDC/3A to support EM locks and strike plates.
    • Eight independent relay outputs (2.5A each) allow per-door failsafe or failsecure config.
    • Class 2 power-limited relay outputs simplify NEC compliance in access control installs.
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    $931.00 $611.99 Save $319.01
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  • Save $390.01
    Lifesafety Power FPO75-B100C8PE4H 75W power supply 6A/12V or 3A
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    Lifesafety Power FPO75-B100C8PE4H

    Lifesafety Power FPO75-B100C8PE4H 75W power supply 6A/12V or 3A

    75W switching power supply with eight independently configurable relay-control outputs designed for distributed access-control and security

    • Eight relay outputs each rated 2.5A with selectable fail-safe, fail-secure, or fail-as-is logic.
    • Single unit powers mixed-voltage loads: 6A@12VDC, 3A@24VDC, and 4A adjustable 5–18VDC.
    • Bussed cable architecture in the E4 enclosure reduces field-wiring labor across multi-cabinet runs.
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    $1,138.00 $747.99 Save $390.01
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  • Save $536.01
    Lifesafety Power FPO75-B100C8PE4H/T4-C 75W power supply 6A/12V
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    Lifesafety Power FPO75-B100C8PE4H/T4-C

    Lifesafety Power FPO75-B100C8PE4H/T4-C 75W power supply 6A/12V

    75W managed power supply designed to feed and supervise door locks, magnetic strikers, and access control solenoids across multiple entry points in

    • Eight 2.5A relay outputs cover 4–8 doors from a single 75W supply.
    • Field-select 12VDC or 24VDC per site; 24V cuts conductor gauge on long runs.
    • Per-channel short-circuit and power-loss supervision isolates faults without taking down adjacent doors.
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    $1,563.00 $1,026.99 Save $536.01
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  • Save $146.01
    Lifesafety Power FPO75-B100D8E1 FPO75-B100D8E1
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    Lifesafety Power FPO75-B100D8E1

    Lifesafety Power FPO75-B100D8E1 FPO75-B100D8E1

    75W regulated power supply board engineered for cabinet-mount installations serving access control panels, door hardware, and distributed

    • 75W regulated output supports multi-door access control and auxiliary camera loads.
    • Dual-rail design delivers 6A at 12V or 3A at 24V, eliminating separate supply runs.
    • Modular board slots directly into Lifesafety Power cabinets, reducing install labor and BOM.
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    $428.00 $281.99 Save $146.01
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  • Save $214.01
    Lifesafety Power FPO75-B100D8E1M 75W power supply 6A/12V or 3A/2
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    Lifesafety Power FPO75-B100D8E1M

    Lifesafety Power FPO75-B100D8E1M 75W power supply 6A/12V or 3A/2

    75W DC power supply with eight independent, fused auxiliary outputs

    • Eight independent 3A fused outputs let you isolate zones without a separate distribution board.
    • Dual-bus selection per output supports multi-system deployments from a single cabinet unit.
    • Class 2 power-limited design simplifies NEC compliance for low-voltage fire and access installs.
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    $624.00 $409.99 Save $214.01
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  • Save $228.01
    Lifesafety Power FPO75-B100D8E2M Mercury Unified Unified Power Sy
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    Lifesafety Power FPO75-B100D8E2M

    Lifesafety Power FPO75-B100D8E2M Mercury Unified Unified Power Sy

    Compact 75W unified power system designed for access control, emergency egress, and perimeter security installations requiring redundant battery

    • 75W dual 12V/24V output supports mixed-voltage lock and reader ecosystems in one unit.
    • 8 fused 3A auxiliary outputs with LED status indicators simplify load isolation and fault diagnosis.
    • Integrated fire alarm relay auto-unlocks egress doors on alarm signal—no external relay board needed.
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    $666.00 $437.99 Save $228.01
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  • Save $409.01
    Lifesafety Power FPO75-B100D8M8NLCE2M 75W power supply 6A/12V
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    Lifesafety Power FPO75-B100D8M8NLCE2M

    Lifesafety Power FPO75-B100D8M8NLCE2M 75W power supply 6A/12V

    75W managed distribution power supply designed for security installations requiring regulated, independently fused power delivery across multiple

    • Eight individually fused 3A DC outputs prevent a single device fault from taking down other loads.
    • Dual-bus architecture lets you isolate zones across Bus1 and Bus2 without external switching hardware.
    • Configurable 12VDC @ 6A or 24VDC @ 3A output supports mixed IP camera and access control loads.
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    $1,193.00 $783.99 Save $409.01
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  • Save $277.01
    Lifesafety Power FPO75-B100D8PE4M Mercury Unified Unified Power
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    Lifesafety Power FPO75-B100D8PE4M

    Lifesafety Power FPO75-B100D8PE4M Mercury Unified Unified Power

    UL-listed unified power supply designed for integrated access control and life-safety installations

    • 75W FlexPower module with 8 x 2.5A Class 2 outputs supports multi-door deployments.
    • Dual 12V/24V rails let you mix legacy locks and modern 24V readers on one supply.
    • Built-in fire alarm disconnect relay eliminates the need for a separate relay module.
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    $809.00 $531.99 Save $277.01
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  • Save $216.01
    Lifesafety Power FPO75-B100E2M Mercury Unified Unified Power Sys
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    Lifesafety Power FPO75-B100E2M

    Lifesafety Power FPO75-B100E2M Mercury Unified Unified Power Sys

    Compact unified power supply designed for integrated access control and emergency egress systems

    • Delivers 12V and 24V DC simultaneously from a single 120V AC input.
    • Hardwired fire alarm relay unlocks doors without networked logic dependencies.
    • Built-in battery charger with low-cutoff protection extends battery service life.
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    $630.00 $413.99 Save $216.01
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  • Save $337.01
    Lifesafety Power FPO75-B100E4M1 DC Power Supply Economical Dual
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    Lifesafety Power FPO75-B100E4M1

    Lifesafety Power FPO75-B100E4M1 DC Power Supply Economical Dual

    75-watt, dual-voltage economical power supply engineered for distributed surveillance and access control infrastructure

    • Dual primary outputs (12VDC/6A or 24VDC/3A) power mixed-voltage camera and lock zones.
    • Adjustable 5–18VDC secondary output at 4A supports auxiliary relays and control modules.
    • 20″×4.5″×24″ rackmount enclosure fits standard 19-inch racks and wall-mount installations.
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    $983.00 $645.99 Save $337.01
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  • Save $428.01
    Lifesafety Power FPO75-B100M8NLCE2M 75W power supply 6A/12V or 3
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    Lifesafety Power FPO75-B100M8NLCE2M

    Lifesafety Power FPO75-B100M8NLCE2M 75W power supply 6A/12V or 3

    75W managed distribution power supply delivering either 6A at 12V or 3A at 24V — your choice depends on the voltage your security devices require

    • Eight independently fused 3A outputs isolate faults to a single device or branch.
    • Selectable 12V/6A or 24V/3A output supports cameras, readers, strikes, and maglocks.
    • 75W managed distribution eliminates daisy-chained wall supplies across multi-device runs.
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    $1,244.00 $815.99 Save $428.01
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  • Save $461.01
    Lifesafety Power FPO75-B100M8NLCE2S 75W power supply 6A/12V or 3
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    Lifesafety Power FPO75-B100M8NLCE2S

    Lifesafety Power FPO75-B100M8NLCE2S 75W power supply 6A/12V or 3

    75-watt managed power supply with eight independently fused distribution outputs, each rated at 3A

    • Eight independently fused 3A outputs isolate faults to a single branch, preventing cascade failures.
    • Supports 12VDC @ 6A or 24VDC @ 3A output — one module covers mixed-voltage endpoint environments.
    • DIN-rail/card-cage form factor integrates directly into Lifesafety Power cabinet and modular rack systems.
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    $1,345.00 $883.99 Save $461.01
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  • Save $677.01
    Lifesafety Power FPO75-B100M8NLCE4M/P4-A 75W PS 6A/12V or 3A/24V
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    Lifesafety Power FPO75-B100M8NLCE4M/P4-A

    Lifesafety Power FPO75-B100M8NLCE4M/P4-A 75W PS 6A/12V or 3A/24V

    75W managed power distribution module engineered for access control, surveillance, and life safety infrastructure requiring monitored, fused DC

    • Delivers 6A@12V or 3A@24V selectable output across 8 independently fused 3A circuits.
    • Per-circuit fault isolation keeps remaining 7 outputs live during a short-circuit event.
    • Cable-based FPO modular design integrates directly with NLC and B100 modules—no breakout hardware needed.
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    $1,973.00 $1,295.99 Save $677.01
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  • Save $426.01
    Lifesafety Power FPO75-B100M8PNLCE2M 75W power supply 6A/12V
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    Lifesafety Power FPO75-B100M8PNLCE2M

    Lifesafety Power FPO75-B100M8PNLCE2M 75W power supply 6A/12V

    75-watt managed power supply with an integrated 8-output distribution panel rated at 2.5A per channel

    • 8 independent 2.5A-limited channels protect each camera circuit from single-point faults.
    • Supports 12VDC at 6A or 24VDC at 3A to match existing on-site infrastructure voltage.
    • Managed distribution eliminates per-line fuses, reducing junction-box complexity in the field.
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    $1,244.00 $817.99 Save $426.01
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  • Save $599.01
    Lifesafety Power FPO75-B100M8PNLCE4M/T4-A 75W power supply 6A/12
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    Lifesafety Power FPO75-B100M8PNLCE4M/T4-A

    Lifesafety Power FPO75-B100M8PNLCE4M/T4-A 75W power supply 6A/12

    75W managed power distribution module built for multi-camera surveillance installations where you need regulated output to multiple devices from a

    • Delivers 75W with 6A at 12V or 3A at 24V to support multi-device DC loads.
    • 8-outlet distribution block caps each branch at 2.5A, preventing individual overloads.
    • Class 2 power-limited outputs allow lighter 18–20 AWG wiring on runs under 100 ft.
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    $1,748.00 $1,148.99 Save $599.01
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  • Save $0.01
    Lifesafety Power FPO75-BOXED Power Supply 120V Input 6A/12V
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    Lifesafety Power FPO75-BOXED

    Lifesafety Power FPO75-BOXED Power Supply 120V Input 6A/12V

    Compact regulated power supply designed for distributed security infrastructure where a single 120VAC source must feed mid-range DC loads

    • Selectable 12VDC/24VDC output lets you match device voltage at order time.
    • Delivers 75W continuous power — enough for 4–6 IP cameras or multiple readers.
    • Standard 120VAC/60Hz input installs on any North American circuit, no conditioning needed.
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    $225.00 $224.99 Save $0.01
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  • Save $222.01
    Lifesafety Power FPO75-C4D8E1PDK 75W PS 6A/12V or 3A/24V 4 relay
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    Lifesafety Power FPO75-C4D8E1PDK

    Lifesafety Power FPO75-C4D8E1PDK 75W PS 6A/12V or 3A/24V 4 relay

    75W regulated power supply engineered for multi-door access control systems where lock control flexibility and distributed auxiliary power are

    • Selectable 6A/12V or 3A/24V output matches site voltage standard without rewiring.
    • Four independent relays support mixed failsafe, failsecure, or FAI lock types per door.
    • Eight fused auxiliary DC outputs eliminate a separate supply for readers and REX devices.
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    $649.00 $426.99 Save $222.01
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  • Save $198.01
    Lifesafety Power FPO75-C4D8E2 : Power supply board 75W 6A/12V
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    Lifesafety Power FPO75-C4D8E2

    Lifesafety Power FPO75-C4D8E2 : Power supply board 75W 6A/12V

    • Four independent channels each supply 12VDC or 24VDC, supporting mixed-voltage door hardware.
    • 75W total capacity handles up to four electromagnetic locks and readers from one board.
    • Fits 19-inch rack or wall enclosures at 20H × 16W × 4.5D in., simplifying centralized deployment.
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    $579.00 $380.99 Save $198.01
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  • Save $239.01
    Lifesafety Power FPO75-C4D8E2M Power supply board 75W 6A/12Vor 3
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    Lifesafety Power FPO75-C4D8E2M

    Lifesafety Power FPO75-C4D8E2M Power supply board 75W 6A/12Vor 3

    75-watt regulated power supply board designed to support networked security equipment and access control systems

    • Selectable 12VDC/6A or 24VDC/3A output supports legacy and modern endpoints.
    • Four onboard relay outputs eliminate external relay modules in lock and alarm circuits.
    • 75W regulated board consolidates auxiliary power for badge readers and solenoid strikes.
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  • Save $231.01
    Lifesafety Power FPO75-C4D8E2P 75W power supply 6A/12V or 3A/24V
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    Lifesafety Power FPO75-C4D8E2P

    Lifesafety Power FPO75-C4D8E2P 75W power supply 6A/12V or 3A/24V

    75-watt regulated power supply designed for access control and life-safety installations

    • Delivers 12VDC/6A or 24VDC/3A to power locks, readers, and cameras from one unit.
    • Four relay lock outputs support FAI, failsafe, or failsecure modes — each fused at 3A.
    • Eight auxiliary DC outputs with Bus1/Bus2 selection eliminate external switching modules.
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    $675.00 $443.99 Save $231.01
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  • Save $210.01
    Lifesafety Power FPO75-C4D8PE1M 75W PS 6A/12V or 3A/24V 4 relay
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    Lifesafety Power FPO75-C4D8PE1M

    Lifesafety Power FPO75-C4D8PE1M 75W PS 6A/12V or 3A/24V 4 relay

    75W centralized power supply and relay controller designed for distributed access control and door locking infrastructure

    • Selectable 12V/6A or 24V/3A output matches lock voltage without extra SKUs.
    • Four 3A-fused relay outputs with per-relay FAI, failsafe, or failsecure logic.
    • Eight Class 2 aux DC outputs power readers and sensors on Bus1 or Bus2.
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    $613.00 $402.99 Save $210.01
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  • Save $373.01
    Lifesafety Power FPO75-C4D8PE2M/T4-A Power supply board 75W 6A/1
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    Lifesafety Power FPO75-C4D8PE2M/T4-A

    Lifesafety Power FPO75-C4D8PE2M/T4-A Power supply board 75W 6A/1

    75W power distribution board designed for access control and security panel integration

    • Delivers 75W at 6A/12V or 3A/24V to power locks, readers, and aux devices.
    • Pre-wired Mercury harness (1502/MR52) connects to 4-door panels without extra termination.
    • Four dedicated lock outputs plus 8 aux channels consolidate multi-door power distribution.
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    $1,089.00 $715.99 Save $373.01
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  • Save $413.01
    Lifesafety Power FPO75-C4D8PE4M/T4-B Mercury ProWire Unified Pow
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    Lifesafety Power FPO75-C4D8PE4M/T4-B

    Lifesafety Power FPO75-C4D8PE4M/T4-B Mercury ProWire Unified Pow

    Unified access control power platform combining regulated power distribution, battery backup, relay lock control, and auxiliary load management in a

    • 75W, 12V/24V DC regulated output across 12 concurrent access points from one enclosure.
    • 4 relay lock outputs with failsafe/failsecure per zone; supports strikes and buzzers together.
    • Built-in fire alarm disconnect automatically releases doors for ADA-compliant emergency egress.
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  • Save $178.01
    Lifesafety Power FPO75-C4E1-2DM2 DMP Unified Power Sys
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    Lifesafety Power FPO75-C4E1-2DM2

    Lifesafety Power FPO75-C4E1-2DM2 DMP Unified Power Sys

    DMP-integrated power supply and battery management system designed for distributed access control, fire alarm, and intercom deployments across

    • 75W output supports 4–6 EM locks with 4 independently fused 3A relay outputs.
    • Integrated battery charger and low-battery cutoff eliminate external modules and prevent deep discharge.
    • Automatic fire alarm disconnect triggers door unlock for code-compliant emergency egress.
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    $520.00 $341.99 Save $178.01
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  • Save $185.01
    Lifesafety Power FPO75-C4E2 Power Supply Board 75W
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    Lifesafety Power FPO75-C4E2

    Lifesafety Power FPO75-C4E2 Power Supply Board 75W

    75W unified power supply board designed for access control systems requiring reliable, multi-zone power distribution

    • 75W output with 4 relay lock outputs, each fused at 3A for independent zone protection.
    • Fire alarm disconnect auto-unlocks doors on alarm signal, supporting life-safety compliance.
    • Optional Netlink module enables network monitoring, remote battery testing, and cloud dashboard.
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    $540.00 $354.99 Save $185.01
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  • Save $207.01
    Lifesafety Power FPO75-C4E2M Power Supply Board 75W
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    Lifesafety Power FPO75-C4E2M

    Lifesafety Power FPO75-C4E2M Power Supply Board 75W

    75W power supply board designed for access control and lock management in small-to-medium commercial installations

    • Delivers 6A at 12V or 3A at 24V to power locks, readers, and relays from one board.
    • Four relay outputs, each fused at 3A, isolate faults so one shorted lock won't cascade.
    • Supports electric strikes, maglocks, and relay-driven door operators in commercial installs.
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    $606.00 $398.99 Save $207.01
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  • Save $216.01
    Lifesafety Power FPO75-C4PD8PE1M Power supply board 75W 6A/12V
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    Lifesafety Power FPO75-C4PD8PE1M

    Lifesafety Power FPO75-C4PD8PE1M Power supply board 75W 6A/12V

    75W board-mount power supply configured for 6A at 12V or 3A at 24V — designed to feed access control systems, door locks, and auxiliary loads in

    • Delivers 75W at 6A/12V or 3A/24V to support multi-door access control loads.
    • Provides 4 relay lock outputs plus 8 auxiliary DC outputs, each class 2 limited at 2.5A.
    • Mercury/Lenel backplate compatibility simplifies retrofit and new-build panel integration.
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    $632.00 $415.99 Save $216.01
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  • Save $239.01
    Lifesafety Power FPO75-C4PD8PE2M Power Supply Board 75w 6A/12V 4
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    Lifesafety Power FPO75-C4PD8PE2M

    Lifesafety Power FPO75-C4PD8PE2M Power Supply Board 75w 6A/12V 4

    Four-output 12VDC power supply designed to distribute backup power across multiple access control readers, door locks, and small-scale security

    • Four independent 12VDC outputs isolate high-current locks from sensitive reader circuits.
    • 75W capacity at 6A/12VDC supports multiple access control endpoints from a single board.
    • 120VAC input suits standard commercial utility supply for straightforward panel integration.
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  • Save $593.01
    Lifesafety Power FPO75-C4PD8PE4M/T4-A ProWire Pow Sys 75W Single
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    Lifesafety Power FPO75-C4PD8PE4M/T4-A

    Lifesafety Power FPO75-C4PD8PE4M/T4-A ProWire Pow Sys 75W Single

    UL-listed power distribution platform designed for access control and life-safety applications where prewired integration, fault tolerance, and

    • 75W at 120V AC powers up to 4 lock outputs plus 8 auxiliary zones in one enclosure.
    • Integrated fire alarm disconnect auto-unlocks doors without external relays or wiring.
    • Built-in battery charger with low-cutoff protects backup batteries during extended outages.
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    Lifesafety Power FPO75-C8D8E2 Single Voltage Offline Switchmode
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    Lifesafety Power FPO75-C8D8E2

    Lifesafety Power FPO75-C8D8E2 Single Voltage Offline Switchmode

    75W single voltage offline switchmode supply engineered for distributed access control loads across 8 independent door circuits

    • 8 independently fused 3A lock outputs prevent a single short from cascading to adjacent doors.
    • 75W envelope supports 12V @ 6A or 24V @ 3A — covers 3–6 strikes plus readers in one unit.
    • 8 additional 3A auxiliary circuits power readers and REX sensors with isolated protection.
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    Lifesafety Power FPO75-C8D8E6M1 75W PS 6A/12V or 3A/24V 8 relay
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    Lifesafety Power FPO75-C8D8E6M1

    Lifesafety Power FPO75-C8D8E6M1 75W PS 6A/12V or 3A/24V 8 relay

    Regulated 75W AC-to-DC power supply engineered for access control and life-safety door lock systems

    • Dual-voltage output (6A/12V or 3A/24V) matches lock hardware without added converters.
    • Eight independently fused 3A relay outputs handle failsafe/failsecure per door, no relay panel needed.
    • Eight auxiliary DC outputs assignable to Bus1 or Bus2 isolate REX and sensor power from lock rails.
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    Lifesafety Power FPO75-C8E1M PSB75W 6A/12V or 3A/24V 8 relay loc
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    Lifesafety Power FPO75-C8E1M

    Lifesafety Power FPO75-C8E1M PSB75W 6A/12V or 3A/24V 8 relay loc

    75W regulated power supply board designed for access-control and door-lock deployments requiring independent circuit isolation and multi-load

    • Eight independently fused 3A relay outputs prevent a single fault from disrupting other circuits.
    • Supports 12V (6A) or 24V (3A) operation, eliminating external converters on mixed-voltage sites.
    • Pre-installed Mercury/Lenel backplate allows direct cabinet mounting with no custom fabrication.
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    Lifesafety Power FPO75-C8E4M Power supply board 75W 6A/12Vor 3A
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    Lifesafety Power FPO75-C8E4M

    Lifesafety Power FPO75-C8E4M Power supply board 75W 6A/12Vor 3A

    75W board-mounted power distribution module designed to serve small-to-medium security deployments that require centralized DC power rather than

    • Selectable 12VDC or 24VDC output adapts to endpoint voltage requirements per install.
    • 75W budget delivers 6A at 12V or 3A at 24V for cameras, readers, and door strikes.
    • Board-mount form factor integrates directly into power cabinets without external housing.
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    Lifesafety Power FPO75-C8PD8PE2 FPO75 Sing Vol Pow Sys Flex Power
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    Lifesafety Power FPO75-C8PD8PE2

    Lifesafety Power FPO75-C8PD8PE2 FPO75 Sing Vol Pow Sys Flex Power

    Unified access control power supply designed for compact, single-voltage deployments requiring fire alarm integration and multi-zone relay switching

    • 75W single-voltage output supports up to 8 relay lock zones at 2.5A Class 2 each.
    • FAI input auto-unlocks doors on fire alarm signal with integrated override prevention.
    • Wall-mount enclosure (20×16×4.5 in) consolidates power, backup, and surge protection.
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Power Delivery & Supplies

Power delivery and supply solutions provide reliable energy for IP cameras, access control hardware, intercoms, and supporting infrastructure. Proper power planning ensures stable operation, protects sensitive equipment, and supports long-term system reliability.

Plan Your Deployment

  • Voltage requirements and device compatibility
  • Total load calculation and expansion capacity
  • Centralized vs distributed power architecture
  • Battery backup and redundancy planning
  • Environmental and enclosure considerations
Get Recommendations Infrastructure

Power Delivery & Supplies — Engineering-Grade Power Distribution for Commercial Deployments

This category covers 1003 working models of power delivery & supplies sourced manufacturer-direct or through channel-direct US distribution. Build the rest of your system around the architectural choices below — compatibility, environmental rating, and lifecycle decisions made here propagate through every downstream component you specify.

What to Look For

Voltage and amperage requirements come from the connected load. Cameras and access-control hardware typically use 12VDC or 24VAC; PoE-powered devices need a PoE injector or switch instead of a traditional supply. Sum the steady-state current draw across all devices on the supply, then add 25-30% headroom for inrush and growth. Undersized supplies fail quickly under sustained load.

Linear, switching, and PoE supplies have different efficiency, noise, and form-factor characteristics. Switching supplies are smaller and cooler-running but introduce switching noise that can affect audio circuits. Linear supplies run quieter electrically but generate more heat and weigh more. PoE injectors and switches are standard for IP cameras and access readers — pick by port count, power budget, and management capability.

Output redundancy and battery backup are the distinguishing features at the high end. Multi-output supplies with individually-fused outputs isolate device failures so one shorted camera doesn't take down the rest. Battery-backed supplies maintain operation during AC failure — code-mandated on most access-control and emergency systems. Sizing the battery for actual runtime requirement is more important than headline Ah capacity.

Enclosure type, mounting, and certification matter for code compliance and field reliability. NEMA-rated enclosures for outdoor/wet locations; lockable enclosures for tamper-resistant installs. UL 294 listing for access-control supplies; UL 1481 for fire-alarm supplies. Verify the AHJ's listing requirements before ordering — many jurisdictions reject non-listed supplies in commercial life-safety installs.

Key Specs in This Category

SpecAvailable Options
ConnectivitySingle-Mode Fiber, Wired, Multi-Mode Fiber, Ethernet over Coax
PowerAC/DC, 24VDC, 12VDC, 24VAC, PoE, PoE+, PoE++
Channels14, 3
TypePower Supply, Enclosure, Accessory, Relay Module, UPS, Network Hub, Cable, Controller
DurabilityIndoor
Night VisionYes

Top Brands in This Category

Frequently Asked Questions

Do I need a battery backup on my power supply?

For access control on egress doors, fire alarm systems, and most security-monitored installations — yes, code requires it. Battery backup runtime is typically 4 hours minimum for access control (24 hours for fire alarm). For surveillance cameras alone, battery backup is optional but recommended; a 30-minute UPS bridge handles most utility-power glitches and prevents reboot cycles that affect recorded video continuity.

What size power supply do I need for 8 PoE cameras?

If using a PoE switch, sum the per-camera PoE class budget: 8 cameras at 802.3at (PoE+, 30W max) need a switch with at least 240W total PoE budget. Add 20-30% headroom. Many 8-port PoE+ switches advertise 130W total budget — undersized for full-load 802.3at use. For 802.3bt (PoE++, 60-90W) devices like multi-imagers or large PTZs, plan even more aggressively.

Can I mix 12VDC and 24VAC devices on one supply?

Multi-output supplies (Altronix AL600ULPD8, LifeSafety FPO75) provide both 12VDC and 24VAC outputs from a single chassis, each individually fused. Mixing the two on a single output is not safe — voltage and waveform are incompatible. For larger sites, separate dedicated supplies per voltage simplify troubleshooting and isolate failures.

How do I calculate voltage drop on long cable runs?

Voltage drop depends on conductor gauge, current draw, and cable length. For 12VDC at 2A over 100 feet, 18 AWG drops roughly 1V (5%) — borderline acceptable. 16 AWG drops half that. For runs over 100 feet at sustained current, use a 24V supply at the source and step down at the device, or move to PoE which tolerates longer runs at typical commercial distances.

What's the difference between a power supply and a PoE injector?

A traditional power supply delivers DC (or AC) to a device through a dedicated power cable. A PoE injector adds DC power to the unused pairs of an Ethernet cable, so the device receives both power and data on the same Cat5e/Cat6. PoE simplifies installation and is the dominant choice for IP cameras and modern access readers. Traditional supplies are still preferred for high-current devices like maglocks and analog camera installations.

Need help choosing? Talk to a Senior Specialist — direct line 877-277-7147 or request a quote.