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    Lifesafety Power C4-BOXED Lock output module 4 outputs fused (view 2)
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    Lifesafety Power C4-BOXED

    Lifesafety Power C4-BOXED Lock output module 4 outputs fused

    Compact four-channel output module designed to distribute supervised 12VDC power to access control hardware from a centralized logic platform

    • Four independent 3A fused outputs prevent a single lock fault from disrupting other circuits.
    • Supports mixed failsafe and fail-secure modes per output within the same installation.
    • FAI-rated for fire alarm interface compatibility, meeting code requirements in life-safety deployments.
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    Lifesafety Power C4P-Boxed Flexpower C4/C4P C8/C8P
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    Lifesafety Power C4P-BOXED

    Lifesafety Power C4P-Boxed Flexpower C4/C4P C8/C8P

    4-output lock control expansion module designed to add access control capacity to existing Lifesafety Power FlexPower supply systems

    • Adds 4 independently programmable lock outputs to existing FlexPower systems.
    • Each output configurable for 12V or 24V, supporting mixed-voltage lock deployments.
    • Per-output fail-safe or fail-secure mode simplifies fire code and egress compliance.
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  • Save $38.01
    Lifesafety Power C8-BOXED Relay Based Lock Control Module 4 Outpu
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    Lifesafety Power C8-BOXED

    Lifesafety Power C8-BOXED Relay Lock Control - 4 Output

    Relay-based access control output module designed to switch power to electronic locks, magnetic locks, and door strikes on distributed door control

    • 8 isolated relay outputs switch locks at independent doors without signal bleed-through.
    • Dry contact inputs accept 5–24VDC logic from any access panel—no active driver required.
    • 3–5A @ 24VDC contact rating handles mag-lock inrush and fail-safe strikes reliably.
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    Lifesafety Power Dual-Buss-Harness-6FT-Boxed Dual-Buss-Harness-6F (view 5)
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    Lifesafety Power DUAL-BUSS-HARNESS-6FT-BOXED

    Lifesafety Power DUAL-BUSS-HARNESS-6FT-BOXED

    6-foot dual-bus power harness cable assembly engineered for supervised power distribution from Lifesafety Power supplies to multiple downstream loads

    • 6-foot factory-terminated harness eliminates field crimping and reduces installation time.
    • Dual-bus configuration enables load balancing across two independent power distribution lanes.
    • Boxed packaging protects pre-terminated connectors for immediate deployment on arrival.
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    Lifesafety Power E1-BOXED LifeSafety Power E Series Standard Powe
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    Lifesafety Power E1-BOXED

    Lifesafety Power E1-BOXED Standard Power

    Compact standard power enclosure from the Lifesafety Power E Series line, designed to deliver reliable DC power distribution in security and access

    • Compact enclosure form factor suits cabinet, wall, or rack-mount deployments.
    • Delivers isolated, supervised DC power feeds to multiple devices in one unit.
    • Verify input voltage, output capacity, and circuit config before finalizing BOM.
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  • Save $1,846.01
    Lifesafety Power E12M-BOXED MCLASS multi-purpose enclos E12M-BOXE
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    Lifesafety Power E12M-BOXED

    Lifesafety Power E12M-BOXED Multi-Purpose Enclosure

    Multi-purpose power and access control enclosure engineered for modular access system installations

    • 750W dual-voltage distribution supports up to 24-door access control deployments.
    • Removable backplate enables full bench pre-wiring before on-site installation.
    • 14-gauge welded steel with powder coat finish resists mechanical stress and corrosion.
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  • Save $121.01
    Lifesafety Power E1M-BOXED LABEL Unified Power Sol.Mercury 14.5
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    Lifesafety Power E1M-BOXED

    Lifesafety Power E1M-BOXED Unified Power Sol. - Mercury 14.5

    Unified power solution from the Lifesafety Power Mercury lineup, designed to simplify power provisioning in compact security installations

    • Factory-assembled, tested-ready boxed unit eliminates custom panel fabrication labor.
    • 14.5 x 5.5 in. form factor fits tight equipment racks and wall-mounted panels.
    • Optimized for Lifesafety Power Mercury E1 and E2 series architectures.
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    $353.00 $231.99 Save $121.01
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  • Save $89.01
    Lifesafety Power E2-BOXED Enclosure E2 20x16x4.5 black no bac - Image 3
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    Lifesafety Power E2-BOXED

    Lifesafety Power E2-BOXED Enclosure E2 20x16x4.5 black no bac

    Wall-mounted steel enclosure designed for power distribution, supervision, and control electronics in commercial security and access-control systems

    • 20"W × 16"H × 4.5"D steel enclosure fits retrofit and space-constrained installs.
    • Black powder-coated cold-rolled steel resists corrosion in standard indoor environments.
    • Accepts E2-series power supplies, relay cards, and supervision modules in one enclosure.
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    $260.00 $170.99 Save $89.01
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  • Save $135.01
    Lifesafety Power E2M-BOXED MCLASS Enclosure - Image 3
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    Lifesafety Power E2M-BOXED

    Lifesafety Power E2M-BOXED MCLASS Enclosure

    UL294-listed multi-purpose power enclosure engineered to consolidate access control hardware, FlexPower management boards, and battery backup into a

    • UL294-listed enclosure supports compliance on regulated access control installations.
    • Removable backplate enables shop-level pre-wiring, cutting field labor by 30–40%.
    • 4.5" depth integrates battery backup internally—no external extensions required.
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  • Save $188.01
    Lifesafety Power E2M1-BOXED 20x16x4.5 Black Enclosure
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    Lifesafety Power E2M1-BOXED

    Lifesafety Power E2M1-BOXED Enclosure E2M1 20x16x4.5 black

    Compact field-mount steel enclosure designed for distributed power and control electronics in surveillance and access-control deployments

    • Pre-installed 35mm DIN-rail backplate accepts power supplies, breakers, and relays without drilling.
    • 20×16×4.5-inch black powder-coated steel body fits pole, wall, or overhead mounts in tight spaces.
    • Hinged latched door allows fast component access without unmounting the enclosure from the wall.
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    $548.00 $359.99 Save $188.01
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  • Save $148.01
    Lifesafety Power E2M1-DOOR-ONLY QUICK GUIDE Mercury Backplat
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    Lifesafety Power E2M1-DOOR-ONLY

    Lifesafety Power E2M1-DOOR-ONLY QUICK GUIDE Mercury Backplat

    250W 24V DC power supply purpose-built for access control and door-locking systems in mid-scale deployments

    • 250W 24V DC supply handles 8–16 mag locks or electric strikes on a single unit.
    • 24 relay outputs with per-output fail-secure/fail-safe selection eliminate external relay modules.
    • E12 enclosure (48H×36W×8D) mounts directly in 19-inch racks without custom fabrication.
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    $432.00 $283.99 Save $148.01
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  • Save $161.01
    Lifesafety Power E4-2BS1 E4 Battery Enclosure
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    Lifesafety Power E4-2BS1

    Lifesafety Power E4-2BS1 E4 Battery Enclosure

    Modular battery backup enclosure designed to extend runtime on Lifesafety Power E4-series uninterruptible power supplies

    • Mounts directly to E4-series UPS units—no external cabling or adapters needed.
    • Stackable enclosures let you scale runtime capacity as site power demands grow.
    • Fits standard 19-inch racks, keeping surveillance and access-control installs compact.
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  • Save $179.01
    Lifesafety Power E4M-Boxed Flexpower E4M / E4M1 / E4M2 / E4M3
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    Lifesafety Power E4M-BOXED

    Lifesafety Power E4M-Boxed Flexpower E4M / E4M1 / E4M2 / E4M3

    UL294-listed multi-purpose enclosure engineered to integrate Lifesafety Power FlexPower power management boards with Mercury Security access control

    • UL294-listed enclosure reduces compliance review cycles at system inspection.
    • Removable backplate enables shop pre-wiring before transport, cutting field time.
    • 6.5-inch depth houses battery backup alongside power boards—no extra cabinet needed.
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  • Save $235.01
    Lifesafety Power E4M1-BOXED 20W Access Control Enclosure 24H
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    Lifesafety Power E4M1-BOXED

    Lifesafety Power E4M1-Boxed E4 Enclosure 20W X 24H X 45D Black

    Painted steel access control enclosure designed for small-to-medium door control clusters, mounting up to 5 Mercury or LNL boards with integrated

    • Integrated 20W supply supports up to 5 Mercury/LNL boards without auxiliary power.
    • Compact 20W×24H×4.5D steel enclosure mounts flush to walls in tight entry points.
    • Pre-wired tamper switch signals your panel alarm input on unexpected door breach.
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  • Save $109.01
    Lifesafety Power E4M1-DOOR-ONLY DOOR ONLY E4M1 enclosure door
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    Lifesafety Power E4M1-DOOR-ONLY

    Lifesafety Power E4M1-DOOR-ONLY DOOR ONLY E4M1 enclosure door

    Replacement door assembly designed for the E4M1 backup power enclosure, securing access to internal power distribution and battery backup components

    • Direct OEM fit for E4M1 enclosures; no shimming, adapter plates, or modification required.
    • Factory-installed latch hardware keeps battery and power distribution components secured.
    • Installs with hand tools only, minimizing downtime during field door replacement.
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    $318.00 $208.99 Save $109.01
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  • Save $612.01
    Lifesafety Power E8B1-BOXED Enclosure, E8B1, 36x30x6.5, black, Br - Image 2
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    Lifesafety Power E8B1-BOXED

    Lifesafety Power E8B1-BOXED Enclosure E8B1 36x30x6.5 black

    Black powder-coated steel enclosure designed to house and protect access control electronics in Brivo backplate and door-mount configurations

    • 36×30×6.5 in. shallow depth supports both recessed and surface-mount installation.
    • Engineered for Brivo backplate and door-mount controller configurations.
    • Black powder-coated steel resists corrosion across indoor commercial deployments.
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    $1,785.00 $1,172.99 Save $612.01
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  • Save $456.01
    Lifesafety Power E8M-BOXED MCLASS multi-purpose Enclosure E8M-BOX
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    Lifesafety Power E8M-BOXED

    Lifesafety Power E8M-BOXED Multi-Purpose Enclosure

    Modular access-control enclosure designed for integrators who need to combine power management and access-panel hardware in a single

    • Supports up to 12 doors across 12V and 24V rails in a single enclosure.
    • Removable backplate enables shop-side pre-wiring, cutting on-site assembly time.
    • 16-gauge steel with 6.5" depth fits 12Ah battery packs internally; no external mount.
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  • Save $547.01
    Lifesafety Power E8M1-BOXED MCLASS Multi-purpose Enclosures
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    Lifesafety Power E8M1-BOXED

    Lifesafety Power E8M1-BOXED MCLASS Multi-purpose Enclosures

    Modular power and access control enclosure designed to integrate FlexPower power management boards with Mercury Security access control panels in a

    • Houses FlexPower and Mercury Security panels in one cabinet, cutting equipment overhead.
    • Removable backplates allow shop-side board mounting before transport, reducing field rework.
    • Dual voltage distribution supports up to 12–16 doors without secondary power supplies.
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    $1,594.00 $1,046.99 Save $547.01
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  • Save $501.01
    Lifesafety Power E8M2-BOXED 16 Door Mercury Security 36"H X 30"W
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    Lifesafety Power E8M2-BOXED

    Lifesafety Power E8M2-BOXED 16 Door Security

    Wall-mounted power distribution enclosure designed to centralize and protect 16 access control door circuits in commercial security installations

    • 16 isolated door outputs prevent a single fault from taking down adjacent circuits.
    • Accepts 120V AC input directly, eliminating step-down transformers in most facilities.
    • Wall-mount 36"H×30"W enclosure suits retrofit installs where floor space is constrained.
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    $1,462.00 $960.99 Save $501.01
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  • Save $603.01
    Lifesafety Power E8M3-BOXED 36x30x6.5 Black Enclosure
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    Lifesafety Power E8M3-BOXED

    Lifesafety Power E8M3-BOXED Enclosure E8M3 36x30x6.5 black

    Wall-mounted metal enclosure designed for power distribution, battery backup, and control logic in surveillance and access control installations

    • 36×30×6.5 in. shallow cabinet fits wiring closets where full racks won't.
    • Included Mercury backplate eliminates custom fab for DIN rail and breaker layout.
    • Black powder-coat finish controls corrosion and dust in indoor control rooms.
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    $1,758.00 $1,154.99 Save $603.01
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  • Save $99.01
    Lifesafety Power FPG100-BOXED Power Supply 100-240VAC internat
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    Lifesafety Power FPG100-BOXED

    Lifesafety Power FPG100-BOXED Power Supply 100-240VAC internat

    Dual-voltage power supply accepting 100–240VAC input, with selectable 12VDC (8A) or 24VDC (4A) output

    • Accepts 100–240VAC input — no step-down transformer needed for global deployments.
    • Selectable 12VDC/8A or 24VDC/4A output covers most access control and lock loads.
    • Single enclosed supply supports multi-region sites including North America, Europe, and Japan.
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    $290.00 $190.99 Save $99.01
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  • Save $1,273.01
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    Lifesafety Power FPG100/200-2C83D8PE4M1/P16-A

    Lifesafety Power FPG100/200-2C83D8PE4M1/P16-A Universal Input

    Universal-input 200W power supply engineered for distributed access control and life safety infrastructure

    • Dual 8A outputs at 12V or 24V cover multi-door nodes from a single 100W supply.
    • Eight relay lock drivers (3A each) support strikes and mag-locks with no external relays.
    • Eight Class 2 aux outputs feed readers and REX devices on segregated power rails.
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    $3,710.00 $2,436.99 Save $1,273.01
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  • Save $574.01
    Lifesafety Power FPG200-B100C4D8PE4M/P4-A Universal input 200W po
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    Lifesafety Power FPG200-B100C4D8PE4M/P4-A

    Lifesafety Power FPG200-B100C4D8PE4M/P4-A 200W PoE

    Universal-input 200W power supply engineered for distributed access control, emergency egress, and ancillary life-safety circuit distribution

    • 4 relay outputs at 24V/8A support failsafe, failsecure, or FAI logic per output.
    • 8 Class 2 aux DC outputs at 2.5A each power readers, REX buttons, and indicators.
    • Dual-bus architecture enables segregated power domains for redundancy across doors.
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    $1,675.00 $1,100.99 Save $574.01
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  • Save $945.01
    Lifesafety Power FPG200-B100C82D8PE6M/P8-A Universal input 200W
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    Lifesafety Power FPG200-B100C82D8PE6M/P8-A

    Lifesafety Power FPG200-B100C82D8PE6M/P8-A 200W

    Compact 200W power supply engineered for access control and life-safety integration

    • 200W at 24V DC sustains 8.3A for 4–6 electronic locks on a single supply.
    • 8 relay outputs, 3A fused per channel, with selectable failsafe/failsecure/FAI logic.
    • Universal 90–264V AC input eliminates site-specific transformers across multi-site rollouts.
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    $2,755.00 $1,809.99 Save $945.01
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  • Save $130.01
    Lifesafety Power FPG200-BOXED Power Supply 100-240VAC internat
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    Lifesafety Power FPG200-BOXED

    Lifesafety Power FPG200-BOXED Power Supply 100-240VAC internat

    Compact regulated power supply designed to feed distributed IP cameras , access control readers, and networked sensors across multi-building or

    • Universal 100–240VAC input deploys across regions without swapping SKUs.
    • 24VDC/8A output delivers 192W for camera clusters where PoE isn't available.
    • International and Japan-compliant certifications cover multi-jurisdiction installs.
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    $381.00 $250.99 Save $130.01
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  • Save $0.01
    Lifesafety Power FPG50-BOXED Power Supply 100-240VAC internati
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    Lifesafety Power FPG50-BOXED

    Lifesafety Power FPG50-BOXED Power Supply 100-240VAC internati

    Compact, universal power supply engineered for international security installations where AC mains voltage varies

    • Accepts 100–240VAC input, eliminating separate power units across global deployments.
    • Selectable 12VDC or 24VDC output at 2A supports both legacy and modern IP camera installs.
    • Japan-certified compliance simplifies regulatory approval for Asia-Pacific security projects.
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  • Save $469.01
    Lifesafety Power FPO150-2C82D8E4M1 FPO150-2C82D8E4M1
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    Lifesafety Power FPO150-2C82D8E4M1

    Lifesafety Power FPO150-2C82D8E4M1 FPO150-2C82D8E4M1

    150W enclosure-mounted power distribution system engineered for multi-door access control deployments

    • Field-selectable 12V/24V output eliminates separate supplies for mixed lock hardware.
    • 16 independently fused relay outputs prevent a single fault from cascading to other circuits.
    • 16 auxiliary outputs isolate reader and REX power from relay switching noise across 32 loads.
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  • Save $289.01
    Lifesafety Power FPO150-2C8E2 150W Power Supply
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    Lifesafety Power FPO150-2C8E2

    Lifesafety Power FPO150-2C8E2 150W Power Supply

    150W power supply designed to feed access control systems, lock controllers, and auxiliary security devices that demand switchable 12V or 24V output

    • Delivers 12A at 12VDC or 6A at 24VDC from a single 150W regulated output.
    • 16 individually fused 3A relay outputs prevent a single short from cascading failures.
    • Each relay output is selectable failsafe or failsecure for strikes, mag locks, and solenoids.
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  • Save $767.01
    Lifesafety Power FPO150-2C8P2D8PE8M1 PSB 150W 12A/12V or 6A/24V
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    Lifesafety Power FPO150-2C8P2D8PE8M1

    Lifesafety Power FPO150-2C8P2D8PE8M1 150W 12V/24V

    150W power supply board (PSB) designed for distributed access control, door lock, and auxiliary device power in mid-to-large deployments

    • 150W power supply with selectable 12V/12A or 24V/6A output
    • 16 relay lock control outputs (Class 2 power-limited)
    • Centralizes power distribution for multi-door installs
    Usually Ships in 2-3 Weeks Free shipping over $499
    $2,236.00 $1,468.99 Save $767.01
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  • Save $257.01
    Lifesafety Power FPO150-2D8E4 150W PS 12A/12V or 6A/24V 16 DC (view 3)
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    Lifesafety Power FPO150-2D8E4

    Lifesafety Power FPO150-2D8E4 150W PS 12A/12V or 6A/24V 16 DC

    150W regulated power supply purpose-built for access control and door hardware installations that require simultaneous 12V and 24V rails

    • Dual-rail output (12A/12V or 6A/24V) eliminates a second supply in mixed-voltage panels.
    • 16 independently fused 3A DC outputs enable zone-level distribution without daisy-chaining.
    • Per-output Bus1/Bus2 routing allows load rebalancing without rewiring the panel.
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    $751.00 $493.99 Save $257.01
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  • Save $562.01
    Lifesafety Power FPO150-2D8E6M1 150W power supply 12A/12V or 6A
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    Lifesafety Power FPO150-2D8E6M1

    Lifesafety Power FPO150-2D8E6M1 150W 12A/12V

    150W industrial power supply designed for distributed surveillance and access control deployments where you need flexible voltage and output

    • Dual-voltage primary (12V/12A or 24V/6A) adapts to cable-run length without swapping units.
    • 8 independently fused 3A aux outputs prevent a single short from collapsing the entire supply.
    • Per-channel Bus1/Bus2 routing isolates camera power from access-control loads on one PSU.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $1,638.00 $1,075.99 Save $562.01
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  • Save $503.01
    Lifesafety Power FPO150-2D8E6P FPO150-2D8E6P
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    Lifesafety Power FPO150-2D8E6P

    Lifesafety Power FPO150-2D8E6P FPO150-2D8E6P

    150W enclosed power distribution unit designed for multi-zone access control and surveillance installations where equipment failures and short

    • Selectable 12V/12A or 24V/6A primary output covers mixed-voltage deployments from one SKU.
    • 16 independently fused 3A auxiliary circuits isolate faults so one short won't drop adjacent loads.
    • Paxton back-plate compatible; 23×32×6.5-inch footprint fits cabinets, closets, and wall mounts.
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    Lifesafety Power FPO150-2D8PE1 150W power supply 12A/12V or 6A/2
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    Lifesafety Power FPO150-2D8PE1

    Lifesafety Power FPO150-2D8PE1 150W Power Supply

    150W power supply designed to distribute power to distributed security endpoints across access control, camera, and alarm circuits

    • Selectable 12VDC/12A or 24VDC/6A output supports both legacy and modern low-voltage devices.
    • 16 independent Class 2 outputs (up to 2.5A each) enable per-circuit fault isolation and load balancing.
    • E1 enclosure (14H×12W×4.5D in.) fits standard 19-inch racks and wall-mount cabinets.
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    Lifesafety Power FPO150-2D8PE4M Mercury Unified Pow Sys FPO150-2D
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    Lifesafety Power FPO150-2D8PE4M

    Lifesafety Power FPO150-2D8PE4M Unified Power Sys

    Unified power distribution platform designed for access control systems, emergency egress control, and integrated facility security infrastructure

    • 150W output with dual 8A Class 2 zones supports 8–12 access control devices per zone.
    • Each D8P module switches independently between 12V and 24V, eliminating mixed-voltage rewiring.
    • Integrated Form C dry contact triggers fail-safe door unlock on fire alarm signal automatically.
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    Lifesafety Power FPO150-2D8PE4M1 8-16 DOOR
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    Lifesafety Power FPO150-2D8PE4M1

    Lifesafety Power FPO150-2D8PE4M1 8-16 Door

    Fixed-output, high-capacity power distribution unit designed for multi-camera and access control installations where you need to centralize power for

    • 150W capacity with 16 individually fused 2.5A outputs isolates faults per circuit.
    • Selectable 12VDC/24VDC primary output reduces voltage drop on runs over 100 feet.
    • Mercury backplate pre-terminates distribution rails, cutting panel wiring time on install.
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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
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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

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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.