Power Supplies
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Speco Technologies
SKU: DD4KIT
Speco Technologies DD4KIT Outdoor Alarm Power Box with 120W Power
120W outdoor power box with 120dB siren and dual strobes
- 120W regulated DC distribution powers multiple cameras and accessories
- 120dB siren + dual strobe lights for audible and visual alarm alerts
- Weatherproof enclosure with active cooling and integrated camera mount
$6,194.15 $3,415.99 Save $2,778.16The item has been added -
Speco Technologies
SKU: P4W5D
Speco Technologies P4W5D 4CH @ 5A DC Camera Power Supply (W-12VDC
4-channel 12VDC power supply for analog and IP camera systems
- Four independent 12VDC channels at 5A each support analog and non-PoE IP cameras.
- PTC auto-reset fuses per channel eliminate manual replacements after overload or short-circuit.
- UL listed and NDAA Section 889 Part B compliant for federally sensitive deployments.
$151.30 $150.99 Save $0.31The item has been added -
Speco Technologies
SKU: P9W10DUL
Speco Technologies P9W10DUL 9-Channel 12VDC Power Supply
9-channel 12VDC power supply, 10A per channel for camera arrays
- Nine isolated 12VDC channels at 10A each prevent single-channel faults from cascading.
- UL-certified design satisfies North American electrical codes for commercial deployments.
- 3-year warranty and compact 25.4×21.2×9.0 in form factor suits rack or wall mounting.
$264.80 $263.99 Save $0.81The item has been added -
Speco Technologies
SKU: PSDC24
Speco Technologies PSDC24 12VDC @ 2A Power Supply UL Listed
Compact 12VDC @ 2A regulated power supply, UL listed for security systems
- Regulated 12VDC @ 2A output ensures stable power for cameras, DVRs, and access control.
- UL listed for indoor security deployments, meeting common compliance requirements.
- Standard DC barrel connector integrates directly with most 12VDC security devices.
$34.50 $33.99 Save $0.51The item has been added -
Speco Technologies
SKU: PSR4C
Speco Technologies PSR4C 4 Amp Regulated 12VDC Power Supply with
12VDC 4-amp regulated power supply for security cameras and access control
- Regulated 12VDC at 4A continuous output protects sensitive electronics from voltage swings.
- Included cigarette lighter adapter enables rapid vehicle or temporary field deployment.
- 2-year warranty and indoor-rated design suit fixed surveillance and access control installs.
$56.60 $55.99 Save $0.61The item has been added -
Add to Cart The item has been addedSpeco Technologies
SKU: PSW4
Speco Technologies PSW4 24VAC 50VA Power Supply
24VAC 50VA power supply for surveillance cameras and access control
- Delivers regulated 24VAC at 50VA to power multiple cameras or door locks from one unit.
- Compact 4×3×3 in form factor fits tight enclosures or wall-mount installations easily.
- Compatible with analog, hybrid, and third-party 24VAC devices for flexible deployments.
$62.15 $61.99 Save $0.16The item has been added -
Add to Cart The item has been addedSpeco Technologies
SKU: PSW5
Speco Technologies PSW5 1 Amp 12VDC Regulated Power Supply
12VDC regulated supply for access control and encoders without voltage sag
- Regulated 12VDC/1A output eliminates voltage sag on long cable runs to endpoint devices.
- Up to 12W capacity supports a single mid-draw reader or shared low-current accessory load.
- Compact 3.0×4.3×1.5 in form factor allows installation close to the powered endpoint.
$32.20 $31.99 Save $0.21The item has been added -
Speco Technologies
SKU: PSWJ
Speco Technologies PSWJ DC Power Lead 2.1 MM Center
2.1mm DC power lead for Speco surveillance cameras and DVRs
- Pre-assembled 2.1 mm center-pin connector eliminates field termination and wiring errors.
- Compatible with Speco power supplies and broad range of DC-powered surveillance devices.
- Compact 2.5 × 2.5 × 1.0 in form factor fits wall, ceiling, and rack installs; 2-year warranty.
$11.55 $10.99 Save $0.56The item has been added -
Speco Technologies
SKU: SP4AWET
Speco Technologies SP4AWET 4-Inch Outdoor 70V Speaker
4-inch outdoor 70V speaker for extended cable runs and multi-zone PA
- Built-in 70V transformer supports extended cable runs across large outdoor zones.
- Weather-rated enclosure withstands moisture and temperature swings in exterior installs.
- Compact 4-inch, 4.8 lb form factor simplifies fence-line and perimeter surface mounting.
$108.15 $107.99 Save $0.16The item has been added -
Speco Technologies
SKU: T7010
Speco Technologies T7010 10W 70V Line Transformer
10W 70V line transformer for commercial audio over 100+ feet
- Handles up to 10W on a 70V line, supporting multiple speakers from one amp output.
- Enables cable runs of 100+ feet with minimal signal loss versus low-impedance wiring.
- Compact at 2.4 x 1.9 x 1.9 in and 0.3 lbs — mounts cleanly in tight commercial spaces.
$20.65 $19.99 Save $0.66The item has been added -
Speco Technologies
SKU: T7020
Speco Technologies T7020 20W 70V Line Transformer
20W 70V line transformer for commercial audio distribution
- Handles continuous 20W loads, supporting medium-to-large zone speaker runs.
- 70V constant-voltage output enables long-distance multi-speaker distribution.
- Passive design requires no external power, simplifying rack or ceiling install.
$22.40 $21.99 Save $0.41The item has been added -
Speco Technologies
SKU: T70255
Speco Technologies T70255 5W 70/25V Dual Transformer
5W dual transformer for mixed 70V/25V speaker systems
- Supports both 70V and 25V lines, simplifying mixed-voltage speaker deployments.
- Passive design requires no external power supply, reducing installation complexity.
- 2-year warranty backs continuous-duty use in commercial paging and security installs.
$14.50 $13.99 Save $0.51The item has been added -
Speco Technologies
SKU: VID2412CONV
Speco Technologies VID2412CONV 24VAC to 12VDC Power Converter
24VAC to 12VDC converter for CCTV auxiliary loads up to 500mA
- Converts 24VAC backbone to regulated 12VDC at 500mA, eliminating a separate supply.
- Stable regulated output prevents voltage sag on long runs with motorized or IR loads.
- 0.9 oz form factor fits tight enclosures, racks, and wall panels without space penalty.
$25.40 $24.99 Save $0.41The item has been added -
Speco Technologies
SKU: WB86T
Speco Technologies WB86T Wall Baffle 70V Transformer Dial
Wall-mount 70V speaker baffle with integrated transformer dial
- Integrated transformer dial eliminates separate inline transformers, reducing installation labor.
- 70V constant-voltage topology supports long cable runs across corridors without impedance issues.
- 7.625" diameter wall-mount form factor fits standard commercial surface or recessed deployments.
$110.60 $109.99 Save $0.61The item has been added -
STI
SKU: STI-34107
STI STI-34107 Multi-Blade 12 VDC Power Adapter
12 VDC multi-blade adapter for STI lock and strike systems
- 12 VDC regulated output powers STI brand access control assemblies
- Multi-blade connector integrates with standard security architectures
- Wall-mount design for distributed power in commercial installations
$36.99The item has been added -
TP-Link
SKU: PSM550-AC
TP-Link PSM550-AC 550 W AC Power Supply Module
- 550W AC hot-swap power supply module for chassis switches
- Hot-swap design — replace module without network downtime
- 50/60 Hz AC input for high-availability network gear
$299.99 $297.99 Save $2.00The 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.