Power Supplies
Showing Results for Power Supplies
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ELK Products
SKU: ELK-P1417
ELK Products ELK-P1417 ELK Security Accessory
ELK auxiliary accessory for access control and alarm expansion
- 14VDC power supply with 100-240V AC universal input
- 13.8-14 VDC regulated output for stable aux power delivery
- Compact 3.07 x 2.83 x 1.5 in (78 x 72 x 38 mm) for rack installs
$33.83 $29.99 Save $3.84The item has been added -
ELK Products
SKU: ELK-P1426
ELK Products ELK-P1426 ELK Security Accessory
14VDC accessory for ELK security control system integration
- 14VDC supply with 100-240V AC universal input voltage range
- 13.8-14 VDC regulated output for stable control circuit operation
- Compact 3.07 x 2.83 x 1.5 in housing for rack-mount deployment
$56.83 $49.99 Save $6.84The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-P212S
ELK Products ELK-P212S RS-485 Security Accessory
RS-485 expansion node for distributed ELK security systems over twisted pair
- 12VDC RS-485 serial expansion accessory for ELK security panels
- 2.0 Amp output for door strikes, readers, and aux device loads
- Drops into existing ELK access control system architecture
$280.99The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-SP12F
ELK Products ELK-SP12F Security Accessory
ELK control panel expansion accessory for system reconfiguration and deployment
- Wall-mount security accessory for ELK control panel deployments
- Compact 4.81 x 3.13 x 1.44 in white housing matches interiors
- Mounting hardware included for drywall and panel installs
$12.47 $10.99 Save $1.48The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-SP30
ELK Products ELK-SP30 Security System Accessory
ELK control panel bridge accessory for multi-device security deployments
- Speaker accessory for ELK alarm panels (500-7000 Hz range)
- Operates 4 to 140 degrees F for unconditioned space placement
- 6 x 8 x 9.5 in white housing for hallway or common-area mounting
$28.41 $25.99 Save $2.42The item has been added -
ELK Products
SKU: ELK-SP35
ELK Products ELK-SP35 ELK Security Accessory
Access control credential for ELK security systems
- ELK accessory with 250-8000 Hz frequency range for system audio
- Compact 4.25 x 4.25 x 2.13 in white housing for tight wall spots
- Credential-based deployment for residential and commercial sites
$20.99The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-SP40
ELK Products ELK-SP40 Security Accessory
Expands ELK security panels for residential and commercial integration
- ELK security speaker accessory with 250-8000 Hz audio range
- Operates 4 to 140 degrees F for unconditioned interior spaces
- 11 x 6.5 x 8.5 in white housing for hallway and common-area mount
$56.83 $49.99 Save $6.84The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-SS15
ELK Products ELK-SS15 ELK Security Accessory
ELK security accessory for 8VDC control system integration
- 8VDC siren or speaker accessory drawing 550 mA at 13.8 VDC
- Operates 4 to 140 degrees F for unconditioned interior placement
- 5.25 in diameter x 6 in tall white housing for ceiling or wall mount
$23.00 $19.99 Save $3.01The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-SS30
ELK Products ELK-SS30 Security Accessory
Modular door control and reader interface for ELK access systems
- 8VDC ELK security accessory with 1A draw at 13.8 VDC
- Operates -20 to 60 degrees C for unconditioned interior installs
- 8 x 4.7 x 9.6 in (200 x 120 x 245 mm) white housing for wall mount
$46.99The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-SS36
ELK Products ELK-SS36 ELK Security Accessory
Professional security accessory with heavy-duty magnet mounting
- Speaker with heavy-duty magnet and Mylar cone for ELK panels
- 500 mA draw at 13.8 VDC - low aux power impact
- UL-listed (file S24906) compact 4.25 x 4.25 x 2.13 in housing
$28.99The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-TRG1640
ELK Products ELK-TRG1640 16-Output 45VA Transformer
16-output 45VA transformer with regulated 5Vac for distributed access control
- 16-output 45VA transformer distributes 5Vac across 16 channels
- Drives access readers, credential processors, and aux loads
- 120VAC input with regulated 5Vac output per channel
$28.41 $26.99 Save $1.42The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-TRG2440
ELK Products ELK-TRG2440 24Vac 40VA Power Transformer
24Vac 40VA transformer for ELK security panel power distribution
- 24Vac 40VA power transformer for ELK control panels and strikes
- Regulated output supports door strike inrush current draws
- Drops into residential and commercial ELK access deployments
$43.99The item has been added -
ELK Products
SKU: ELK-W119
ELK Products ELK-W119 Dual Battery Wires for M1 Controls
Dual battery wire assembly for ELK M1 control panel backup power
$23.00 $19.99 Save $3.01The item has been added -
FLIR
SKU: 4124857
FLIR Power Supply Assy 24VAC - 4124857
- 24VAC OEM power supply for FLIR security equipment
- 100-240VAC input handles US and international mains
- UL/CE/FCC compliance certifications for commercial install
$769.00 $562.99 Save $206.01The item has been added -
Geovision
SKU: 47-A2243RE-5C61
Geovision 47-A2243RE-5C61 GV-SD Power Supply
- OEM Geovision component ensures verified compatibility with GV-SD series IP PTZ cameras.
- Regulated power output maintains stable camera operation over extended deployment periods.
- Suitable for indoor and outdoor installations, supporting professional integrator deployments.
$64.00 $63.99 Save $0.01The item has been added -
Geovision
SKU: 47-B2123AF-90U3
Geovision 47-B2123AF-90U3 Convertible Power Adapter
- Convertible connector design supports multiple Geovision IP camera models from one adapter.
- OEM Geovision accessory (MPN 47-B2123AF-90U3) ensures compatibility across IPCAM product lines.
- Reduces spare-parts inventory by eliminating separate power supplies for mixed camera configs.
$43.00 $42.99 Save $0.01The item has been added
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
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
| Spec | Available Options |
|---|---|
| Resolution | 4MP, 2MP, 0MP, 8MP, 5MP, 20MP+ |
| IP Rating | IP65, IP68, IP66, IP67 |
| Connectivity | Wired, Bluetooth, Wi-Fi |
| Power | AC/DC, PoE+, PoE |
| Storage | microSD |
| Type | Power 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.