Power Supplies

Selecting a sort option will reload the product list.

Showing Results for Power Supplies

  • Save $0.77
    I-Pro Mr-Power-5P 120W AC Adaptor
    Add to Cart The item has been added

    i-PRO MR-POWER-5P

    I-Pro Mr-Power-5P 120W AC Adaptor

    120W AC adaptor with 5-pin Phoenix connector for i-PRO MR-8C NVRs

    • 120W DC output supports dual network video recorder operation
    • 5-pin Phoenix connector prevents accidental disconnection in field deployments
    • AC input compatible with standard North American power infrastructure
    Free shipping over $499
    $215.76 $214.99 Save $0.77
    The item has been added Add to quote
    $215.76 $214.99 Save $0.77
    Save $0.77 Add to cart Add to quote
  • Save $0.01
    i-PRO Power Supply FOR Remote Head HD Camera System (view 5)
    Add to Cart The item has been added

    i-PRO PSS932

    i-PRO Power Supply FOR Remote Head HD Camera System - PSS932

    Power supply for the i-PRO remote-head HD camera system

    • OEM replacement supply restores factory-spec electrical performance to the PSS932 system.
    • Regulated DC output eliminates ripple-induced image artifacts in HD remote-head cameras.
    • Designed for continuous-duty OEM service in medical and industrial inspection deployments.
    Free shipping over $499
    $142.00 $141.99 Save $0.01
    The item has been added Add to quote
    $142.00 $141.99 Save $0.01
    Save $0.01 Add to cart Add to quote
  • Save $557.01
    i-PRO Power Supply LSP Model #
    Add to Cart The item has been added

    i-PRO MC-2C82D8PE8M2

    i-PRO Power Supply LSP Model # - MC-2C82D8PE8M2

    LifeSafety Power LSP-model access-control supply configured for multi-door access-control deployments

    • Selectable 12 VDC or 24 VDC output supports mixed lock and reader hardware.
    • Individually fused output channels isolate faults without taking down the full system.
    • AC-fail and tamper relays feed status directly to the access control panel.
    Free shipping over $499
    $2,568.00 $2,010.99 Save $557.01
    The item has been added Add to quote
    $2,568.00 $2,010.99 Save $557.01
    Save $557.01 Add to cart Add to quote
  • Save $231.01
    i-PRO Power Supply LSP Model # FPO150-B100C8D8 (view 7)
    Add to Cart The item has been added

    i-PRO MC-B100C8D8PE4M

    i-PRO Power Supply LSP Model # FPO150-B100C8D8 - MC-B100C8D8PE4M

    LifeSafety Power FPO150-class access-control supply for multi-door access-control deployments

    • Selectable 12 VDC/24 VDC output supports mixed lock and reader hardware in one unit.
    • Individually fused output channels isolate faults without taking down the full door system.
    • Integrated AC-fail and tamper relays feed directly into the access panel for centralized monitoring.
    Free shipping over $499
    $1,065.00 $833.99 Save $231.01
    The item has been added Add to quote
    $1,065.00 $833.99 Save $231.01
    Save $231.01 Add to cart Add to quote
  • Save $0.07
    i-PRO MC-TM250 - i-PRO Power Supply: Altronix Model # TM250 Enclosure
    Add to Cart The item has been added

    i-PRO MC-TM250

    i-PRO Power Supply: Altronix Model # TM250 Enclosure - MC-TM250

    N enclosure housing for the Altronix TM250 power supply module

    • Houses the Altronix TM250 module for centralized power distribution across multiple zones.
    • Supports wall or rack mounting to fit varied equipment room and closet layouts.
    • Designed for i-PRO surveillance deployments requiring managed, fused circuit power delivery.
    Free shipping over $499
    $209.06 $208.99 Save $0.07
    The item has been added Add to quote
    $209.06 $208.99 Save $0.07
    Save $0.07 Add to cart Add to quote
  • Save $770.59
    i-PRO Power Supply: TROVE2M2 2X EFLOW104NB 2X - MC-T2MK77F16QMC
    Add to Cart The item has been added

    i-PRO MC-T2MK77F16QMC

    i-PRO Power Supply: TROVE2M2 2X EFLOW104NB 2X - MC-T2MK77F16QMC

    When deploying distributed 4K surveillance systems, reliable power distribution becomes critical to system uptime

    • Dual EFLOW104NB units distribute power loads across 4K/8MP camera arrays.
    • Wall-mount design preserves rack space and keeps power infrastructure accessible.
    • Centralized architecture eliminates per-camera adapters, reducing failure points.
    Free shipping over $499
    $2,477.58 $1,706.99 Save $770.59
    The item has been added Add to quote
    $2,477.58 $1,706.99 Save $770.59
    Save $770.59 Add to cart Add to quote
  • Save $1,194.13
    i-PRO Power Supply: TROVE3M3 2X EFLOW104NB 2X - MC-T3MK77F16SQMC
    Add to Cart The item has been added

    i-PRO MC-T3MK77F16SQMC

    i-PRO Power Supply: TROVE3M3 2X EFLOW104NB 2X - MC-T3MK77F16SQMC

    When you're managing edge compute appliances and network video recorders in mission-critical environments, power redundancy isn't optional—it's

    • Dual EFLOW104NB supplies provide automatic failover, eliminating single points of failure.
    • Hot-swappable units allow supply replacement during live operation without system downtime.
    • Purpose-built for TROVE3M3 appliances, ensuring compatibility with i-PRO edge compute platforms.
    Free shipping over $499
    $3,839.12 $2,644.99 Save $1,194.13
    The item has been added Add to quote
    $3,839.12 $2,644.99 Save $1,194.13
    Save $1,194.13 Add to cart Add to quote
  • Save $0.01
    Kantech KT-PS4085 12VDC 1.5A Power Supply
    Add to Cart The item has been added

    Kantech KT-PS4085

    Kantech KT-PS4085 12VDC 1.5A Power Supply

    12VDC 1.5A regulated supply for distributed access control systems

    • 12VDC 1.5A regulated power supply for access control
    • Stable voltage under load prevents reader brownouts
    • Compact form factor fits standard control panels
    Free shipping over $499
    $120.00 $119.99 Save $0.01
    The item has been added Add to quote
    $120.00 $119.99 Save $0.01
    Save $0.01 Add to cart Add to quote
  • Save $68.01
    Image coming soon
    Add to Cart The item has been added

    Kantech KTES-PS-NA

    Kantech KTES-PS-NA 19VDC 3.15A Power Supply

    19VDC 3.15A regulated power supply for Kantech access control

    • 19VDC 3.15A regulated power supply (59.85W output)
    • Universal 100-240VAC input for global deployments
    • 3-pin AC cord included for direct outlet connection
    Free shipping over $499
    $244.00 $175.99 Save $68.01
    The item has been added Add to quote
    $244.00 $175.99 Save $68.01
    Save $68.01 Add to cart Add to quote
  • Save $99.01
    Kantech LifeSafety Power 75W 12V/24V Supply
    Add to Cart The item has been added

    Kantech KT-LSP-C4E1

    Kantech LifeSafety Power 75W 12V/24V Supply

    75W dual-voltage supply for access control and door locks

    • 75W power supply with 6A @ 12V or 3A @ 24V output
    • Dual voltage selectable for lock hardware or accessories
    • Wall-mount form factor saves rack space at the door
    Free shipping over $499
    $475.00 $375.99 Save $99.01
    The item has been added Add to quote
    $475.00 $375.99 Save $99.01
    Save $99.01 Add to cart Add to quote
  • Save $0.01
    Lantronix ACC-520-0203-00 Spider 2 KVM Power Supply Accessory
    Add to Cart The item has been added

    Lantronix ACC-520-0203-00

    Lantronix ACC-520-0203-00 Spider 2 KVM Power Supply Accessory

    Power supply accessory for Lantronix Spider 2 32-port KVM systems

    • 5VDC 2A replacement power supply for Spider 2 KVM
    • Right-angle mini USB-B connector for low-profile fit
    • 100-240VAC universal input for global deployments
    Free shipping over $499
    $30.00 $29.99 Save $0.01
    The item has been added Add to quote
    $30.00 $29.99 Save $0.01
    Save $0.01 Add to cart Add to quote
  • Save $0.01
    Lantronix SPS-UA12DHT-EU 18W Universal AC Power Adapter (view 3)
    Add to Cart The item has been added

    Lantronix SPS-UA12DHT-EU

    Lantronix SPS-UA12DHT-EU 18W Universal AC Power Adapter

    12VDC 18W universal power adapter for Lantronix SPS series devices

    • 18W universal AC adapter, +12VDC output
    • Universal AC input for global voltage compatibility
    • TAA-compliant external supply for Lantronix appliances
    Free shipping over $499
    $48.00 $47.99 Save $0.01
    The item has been added Add to quote
    $48.00 $47.99 Save $0.01
    Save $0.01 Add to cart Add to quote
  • Save $358.01
    Lifesafety Power FPO150-2C82D8E4 16 lock 16 auxiliary outputsfus
    Add to Cart The item has been added

    Lifesafety Power FPO150-2C82D8E4

    Lifesafety Power FPO150-2C82D8E4 16 lock 16 auxiliary outputsfus

    Fused power distribution module designed to control door locks and auxiliary devices from a single power supply

    • 16 dedicated lock outputs and 16 auxiliary outputs consolidate multi-door power in one module.
    • Each channel is individually fused at 3A, isolating faults so one short won't drop other circuits.
    • Supports mag locks, solenoids, strikes, sirens, and relay loads within the 3A per-channel limit.
    Free shipping over $499
    $1,044.00 $685.99 Save $358.01
    The item has been added Add to quote
    $1,044.00 $685.99 Save $358.01
    Save $358.01 Add to cart Add to quote
  • Save $206.01
    Lifesafety Power FPO150-2D8E1 FPO150-2D8E1
    Add to Cart The item has been added

    Lifesafety Power FPO150-2D8E1

    Lifesafety Power FPO150-2D8E1 FPO150-2D8E1

    150W fused auxiliary power supply built to distribute regulated 12V or 24V power to multiple security devices from a single source

    • 16 independent 3A fused outputs isolate faults so a single short won't cascade.
    • Distributes regulated 12V or 24V at 150W to locks, readers, and sensors.
    • E1 enclosure suits electrical closets and control rooms in access-control deployments.
    Free shipping over $499
    $602.00 $395.99 Save $206.01
    The item has been added Add to quote
    $602.00 $395.99 Save $206.01
    Save $206.01 Add to cart Add to quote
  • Save $370.01
    Lifesafety Power FPO150-2D8E4V1 FPO150-2D8E4V1
    Add to Cart The item has been added

    Lifesafety Power FPO150-2D8E4V1

    Lifesafety Power FPO150-2D8E4V1 FPO150-2D8E4V1

    150W, 12V backup power supply mounted in an E4V1 steel enclosure (24 inches high, 20 inches wide, 4.5 inches deep)

    • 150W at 12V DC sustains cameras and access control during mains failure.
    • 16 fused auxiliary outputs isolate faults per circuit, preventing system-wide outages.
    • E4V1 steel enclosure (24"H × 20"W × 4.5"D) fits standard commercial cabinet footprints.
    Free shipping over $499
    $1,081.00 $710.99 Save $370.01
    The item has been added Add to quote
    $1,081.00 $710.99 Save $370.01
    Save $370.01 Add to cart Add to quote
  • Save $486.01
    Lifesafety Power FPO150-2D8E6S 150W Single Voltage 120 VAC 16 Au
    Add to Cart The item has been added

    Lifesafety Power FPO150-2D8E6S

    Lifesafety Power FPO150-2D8E6S 150W Single Voltage 120 VAC 16 Au

    150-watt single-voltage (120 VAC input) power distribution unit with 16 auxiliary outputs, designed for small-to-medium surveillance, access control

    • 150W at 120 VAC input powers 16 auxiliary outputs from a single hardwired source.
    • Supports 12 VDC and 24 VDC low-voltage devices including cameras, locks, and readers.
    • Consolidates branch power distribution, eliminating sub-panels at each device location.
    Free shipping over $499
    $1,419.00 $932.99 Save $486.01
    The item has been added Add to quote
    $1,419.00 $932.99 Save $486.01
    Save $486.01 Add to cart Add to quote
  • Save $578.01
    Lifesafety Power FPO150-2D8PE6M1 150W Single Voltage 120 VAC 16
    Add to Cart The item has been added

    Lifesafety Power FPO150-2D8PE6M1

    Lifesafety Power FPO150-2D8PE6M1 150W Single Voltage 120 VAC 16

    150W single voltage power supply operating at 120 VAC input, designed to distribute 24 VDC auxiliary power across networked surveillance, access

    • 150W at 24 VDC consolidates power for up to 16 auxiliary devices in one unit.
    • Single 120 VAC input simplifies wiring in rack or cabinet deployments.
    • Supports cameras, access readers, intercoms, and sensors drawing 24 VDC.
    Free shipping over $499
    $1,687.00 $1,108.99 Save $578.01
    The item has been added Add to quote
    $1,687.00 $1,108.99 Save $578.01
    Save $578.01 Add to cart Add to quote
  • Save $379.01
    Lifesafety Power FPO150-B1002C82D8E4 16 Lock 16 Auxiliary Output
    Add to Cart The item has been added

    Lifesafety Power FPO150-B1002C82D8E4

    Lifesafety Power FPO150-B1002C82D8E4 16 Lock 16 Auxiliary Output

    150W distributed power supply built for access control systems running multiple electric locks and auxiliary devices—door readers, access panels

    • 16 independently fused 3A lock outputs prevent a single fault from dropping the full supply.
    • Dual voltage rails (12V/4A and 24V/4A) support mixed-voltage lock and device loads in one enclosure.
    • 16 auxiliary outputs at 3A each power readers, REX buttons, and strobes alongside lock circuits.
    Free shipping over $499
    $1,105.00 $725.99 Save $379.01
    The item has been added Add to quote
    $1,105.00 $725.99 Save $379.01
    Save $379.01 Add to cart Add to quote
  • Save $325.01
    Lifesafety Power FPO150-B1002D8E4M 150W Dual Voltage 120 VAC 16
    Add to Cart The item has been added

    Lifesafety Power FPO150-B1002D8E4M

    Lifesafety Power FPO150-B1002D8E4M 150W Dual Voltage 120 VAC 16

    150W dual voltage power supply rated for 120 VAC input with 16 auxiliary outputs

    • Single 120 VAC hard-wired source distributes power across 16 auxiliary outputs.
    • Dual voltage output supports 12 VDC and 24 VDC devices from one cabinet-mounted unit.
    • 75W rated supply eliminates daisy-chained transformers in access control installations.
    Free shipping over $499
    $948.00 $622.99 Save $325.01
    The item has been added Add to quote
    $948.00 $622.99 Save $325.01
    Save $325.01 Add to cart Add to quote
  • Save $234.01
    Lifesafety Power FPO150-B100C4P2D8PE1 Standard Power Systems150W
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100C4P2D8PE1

    Lifesafety Power FPO150-B100C4P2D8PE1 Standard Power Systems150W

    150W standard power supply designed to distribute regulated DC power across multiple surveillance and access control devices

    • 150W regulated DC output centralizes power for cameras, locks, and readers.
    • Four relay lock outputs support electromagnetic and electronic door control.
    • 16 auxiliary outputs integrate sensors, strobes, and status indicators.
    Free shipping over $499
    $682.00 $447.99 Save $234.01
    The item has been added Add to quote
    $682.00 $447.99 Save $234.01
    Save $234.01 Add to cart Add to quote
  • Save $634.01
    Lifesafety Power FPO150-B100C82D8PE4M/T8-A 8DR E4M 150W 4A/12V
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100C82D8PE4M/T8-A

    Lifesafety Power FPO150-B100C82D8PE4M/T8-A 8DR E4M 150W 4A/12V

    150W redundant power supply built for distributed door control and surveillance infrastructure

    • 150W redundant supply delivers 4A at 12V and 4A at 24V across 8 isolated outputs.
    • Dual-voltage design powers legacy 12V cameras and 24V access control from one unit.
    • Eight separate output channels eliminate daisy-chain voltage sag across locks and readers.
    Free shipping over $499
    $1,850.00 $1,215.99 Save $634.01
    The item has been added Add to quote
    $1,850.00 $1,215.99 Save $634.01
    Save $634.01 Add to cart Add to quote
  • Save $634.01
    Lifesafety Power FPO150-B100C82D8PE4M/T8-C PreWired Mercury 8DR
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100C82D8PE4M/T8-C

    Lifesafety Power FPO150-B100C82D8PE4M/T8-C PreWired Mercury 8DR

    150W prewired access control power supply engineered for small-to-medium commercial deployments requiring distributed 12V and 24V power to door locks

    • Delivers 4A at 12V and 4A at 24V simultaneously to power up to 8 door locks.
    • Factory-prewired MR52 harnesses eliminate field termination and reduce install errors.
    • 16 auxiliary outputs support relays, REX buttons, LEDs, and door sensors.
    Free shipping over $499
    $1,850.00 $1,215.99 Save $634.01
    The item has been added Add to quote
    $1,850.00 $1,215.99 Save $634.01
    Save $634.01 Add to cart Add to quote
  • Save $712.01
    Lifesafety Power FPO150-B100C82D8PE4M1/T8-A 8DR E4M 150W 4A/12V
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100C82D8PE4M1/T8-A

    Lifesafety Power FPO150-B100C82D8PE4M1/T8-A 8DR E4M 150W 4A/12V

    150W distributed power supply rated 4A at both 12V and 24V outputs—built for access control, surveillance, and door management deployments where you

    • Eight isolated 12V/24V rails prevent a single-device fault from collapsing system power.
    • 150W envelope supports mixed mag locks, readers, and aux relays at 4A per rail.
    • Ships pre-wired with tie-wrap harness, reducing bench time and installation wiring errors.
    Free shipping over $499
    $2,076.00 $1,363.99 Save $712.01
    The item has been added Add to quote
    $2,076.00 $1,363.99 Save $712.01
    Save $712.01 Add to cart Add to quote
  • Save $712.01
    Lifesafety Power FPO150-B100C82D8PE4M1/T8-C 8DR E4M 150W 4A/12V
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100C82D8PE4M1/T8-C

    Lifesafety Power FPO150-B100C82D8PE4M1/T8-C 8DR E4M 150W 4A/12V

    150W distributed power supply purpose-built for multi-door access control installations

    • 150W supply delivers 4A at 12V, powering up to 8 simultaneous lock solenoids.
    • Factory pre-wired 8-door relay outputs reduce installation time in multi-door deployments.
    • Switchable 12V/24V output supports both fail-safe and fail-secure lock circuit types.
    Free shipping over $499
    $2,076.00 $1,363.99 Save $712.01
    The item has been added Add to quote
    $2,076.00 $1,363.99 Save $712.01
    Save $712.01 Add to cart Add to quote
  • Save $831.01
    Lifesafety Power FPO150-B100C82D8PE6M/T8-A 8DR E6M 150W 4A/12V&4A
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100C82D8PE6M/T8-A

    Lifesafety Power FPO150-B100C82D8PE6M/T8-A 8DR E6M 150W 4A/12V&4A

    150W 8-output regulated power supply designed for small-to-medium access control and surveillance installations requiring dual-voltage DC outputs

    • Dual-rail 12V/24V DC output powers mixed-voltage devices from a single 150W chassis.
    • Eight independent outputs let you distribute mag locks, strikes, and strobes without daisy-chaining.
    • 120V AC mains input; each output rail is capped at 4A to prevent thermal overload.
    Free shipping over $499
    $2,422.00 $1,590.99 Save $831.01
    The item has been added Add to quote
    $2,422.00 $1,590.99 Save $831.01
    Save $831.01 Add to cart Add to quote
  • Save $357.01
    Lifesafety Power FPO150-B100C8D8E4-4DM2 150W (12V & 24V) 8 lock/8
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100C8D8E4-4DM2

    Lifesafety Power FPO150-B100C8D8E4-4DM2 150W (12V & 24V) 8 lock/8

    150W modular power supply engineered for distributed access control and surveillance installations

    • Delivers simultaneous 12V and 24V outputs across eight auxiliary ports in one unit.
    • 150W modular frame supports up to eight plug-in modules for field-customized deployments.
    • Mounts in standard 19-inch racks or wall cabinets; runs on 120VAC commercial power.
    Free shipping over $499
    $1,043.00 $685.99 Save $357.01
    The item has been added Add to quote
    $1,043.00 $685.99 Save $357.01
    Save $357.01 Add to cart Add to quote
  • Save $263.01
    Lifesafety Power FPO150-B100C8E2 150W (12 or 24V) 5-18V Adjustabl
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100C8E2

    Lifesafety Power FPO150-B100C8E2 150W (12 or 24V) 5-18V Adjustabl

    150W dual-output power supply designed for multi-camera surveillance and access control deployments

    • Dual-output design (12/24V primary + 5–18V adjustable secondary) powers mixed-voltage systems from one enclosure.
    • Eight lock-style output terminals prevent accidental disconnection under vibration in truck bays or industrial zones.
    • 16×20×4.5-inch enclosure mounts to standard wall-cabinet rails or 19-inch racks for flexible deployment.
    Free shipping over $499
    $768.00 $504.99 Save $263.01
    The item has been added Add to quote
    $768.00 $504.99 Save $263.01
    Save $263.01 Add to cart Add to quote
  • Save $238.01
    Lifesafety Power FPO150-B100D8PE2 150W Dual Voltage 120 VAC 8 Au
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100D8PE2

    Lifesafety Power FPO150-B100D8PE2 150W Dual Voltage 120 VAC 8 Au

    150W power distribution unit designed for mid-scale surveillance and access control deployments

    • 150W capacity supports mixed camera, lock, and reader loads on one circuit.
    • Eight independent auxiliary outputs distribute hardwired 12 VDC or 24 VDC feeds.
    • Accepts standard 120 VAC input, fitting directly into existing building power.
    Free shipping over $499
    $694.00 $455.99 Save $238.01
    The item has been added Add to quote
    $694.00 $455.99 Save $238.01
    Save $238.01 Add to cart Add to quote
  • Save $631.01
    Lifesafety Power FPO150-B100M8NLC2SD4PE4M 150W Dual Voltage 120
    Add to Cart The item has been added

    Lifesafety Power FPO150-B100M8NLC2SD4PE4M

    Lifesafety Power FPO150-B100M8NLC2SD4PE4M 150W Dual Voltage 120

    150W managed power supply designed for distributed access control deployments

    • 8 managed lock outputs and 8 managed aux outputs centralize multi-door power distribution.
    • Current-monitored outputs simplify fault isolation and reduce troubleshooting time on large systems.
    • 150W at 120 VAC input eliminates individual power runs to each lock, cutting installation labor.
    Free shipping over $499
    $1,839.00 $1,207.99 Save $631.01
    The item has been added Add to quote
    $1,839.00 $1,207.99 Save $631.01
    Save $631.01 Add to cart Add to quote
  • Save $199.01
    Lifesafety Power FPO150-C4E1 4 lock outputs fused at 3A peroutput
    Add to Cart The item has been added

    Lifesafety Power FPO150-C4E1

    Lifesafety Power FPO150-C4E1 4 lock outputs fused at 3A peroutput

    150W fused power distribution unit designed to supply door locks and other access control devices in multi-unit installations

    • Four independently fused 3A outputs prevent a single lock fault from cascading.
    • Delivers 12A at 12V or 6A at 24V to power up to four access control lock circuits.
    • Compact E1 enclosure mounts inside standard equipment racks or wall cabinets.
    Free shipping over $499
    $582.00 $382.99 Save $199.01
    The item has been added Add to quote
    $582.00 $382.99 Save $199.01
    Save $199.01 Add to cart Add to quote

Power Supplies

Power supplies provide stable and regulated power for surveillance cameras, access control devices, and intercom systems. Selecting the proper voltage, amperage, and redundancy configuration ensures reliable operation and minimizes system downtime in commercial environments.

Plan Your Deployment

  • Voltage and amperage requirements for connected devices
  • Centralized vs distributed power architecture
  • Redundancy and failover considerations
  • Indoor vs outdoor installation requirements
  • Code compliance and surge protection planning
Get Recommendations Electrical & Power

Power Supplies — Engineering-Grade Power Distribution for Commercial Deployments

This category covers 193 working models of power 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
Resolution4MP, 2MP, 0MP, 8MP, 5MP, 20MP+
IP RatingIP65, IP68, IP66, IP67
ConnectivityWired, Bluetooth, Wi-Fi
PowerAC/DC, PoE+, PoE
StoragemicroSD
TypePower Supply, Accessory, Power Accessories, Switch, Controller, Mobile Computer, Power Adapter, DVR

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.