Electrical & Power Supplies for Surveillance Systems

Plan Your Deployment

Voltage requirements and device compatibility
Power budgeting across cameras and access devices
Centralized vs distributed power design
Surge protection and environmental safeguards
Redundancy and uptime planning

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Pelco

SKU: OHEPOWINJ

Pelco OHEPOWINJ Hi-PoE Injector for OHE Housing

Hi-PoE injector for Pelco OHE outdoor housings with heating/cooling
- Exceeds standard 30W PoE+ to support cameras with heaters, blowers, IR
- Single Ethernet cable carries both power and data to outdoor housing
- Indoor IT closet mount; NDAA Section 889 compliant for government use
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$131.13 $96.99 Save $34.14

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Pelco

SKU: OHEPS01B

Pelco OHEPS01B OHE Power Supply 12Vdc

12Vdc power supply for Pelco OHE outdoor housings, 100–240V input
- Universal AC input (100–240 Vac, 50/60 Hz) with no voltage selector needed
- 12Vdc output for Pelco outdoor housing accessories and surveillance deployments
- NDAA Section 889 compliant for government and enterprise procurement
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$64.97 $47.99 Save $16.98

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Pelco

SKU: OHEPS02B

Pelco OHEPS02B 230Vac to 24Vac Power Supply

230Vac to 24Vac converter for European outdoor housing accessories
- Regulated 24Vac output powers heaters, blowers, and wiper motors simultaneously
- 20% capacity headroom built in for safe operation without voltage drop
- NDAA Section 889 compliant for government and regulated installations
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$57.10 $41.99 Save $15.11

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Pelco

SKU: OHEPS19B

Pelco OHEPS19B 12Vdc Power Supply

12Vdc regulated supply for Pelco OHE camera housings, 100–240V input
- Universal 100–240 Vac input, 50/60 Hz — no selector switch needed
- Stable 12 Vdc output designed for OHE-series housing compatibility
- Compact design rated for dry, ventilated indoor and protected locations
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$49.36 $36.99 Save $12.37

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Pelco

SKU: OHEPS20

Pelco OHEPS20 Housing Power Supply 230Vac to 24Vac

230Vac to 24Vac converter for Pelco outdoor camera housings
- Powers heater, blower, and wiper motor systems simultaneously
- 20% operational headroom matched to integrated housing accessories
- Indoor/enclosed installation in dry, ventilated location required
Special Order · Ships in 2-3 weeks

$35.48 $26.99 Save $8.49

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Pelco

SKU: OHEPS25

Pelco OHEPS25 230Vac to 24Vac Power Supply

230Vac to 24Vac power supply for European outdoor housing accessories
- 400 mA output rated for single heater or wiper motor loads
- Converts European 230 Vac input to regulated 24 Vac output
- NDAA Section 889 compliant for regulated installations
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$50.16 $36.99 Save $13.17

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Pelco

SKU: OHOVPS1B

Pelco OHOVPS1B Housing Power Supply 12Vdc

Universal 12Vdc supply for Pelco OHO camera housings, 100–240V input
- 100–240 Vac input with no selector switch for global deployments
- 12 Vdc output purpose-built for Pelco OHO-series housings
- NDAA Section 889 compliant for government and critical infrastructure
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$44.82 $32.99 Save $11.83

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Pelco

SKU: OHOVPS2B

Pelco OHOVPS2B Power Supply 230V to 24V AC

230V to 24V AC converter for Pelco OHO surveillance housings
- Converts European 230 Vac mains to regulated 24 Vac output
- Compact mount-ready design fits OHO-series camera housings
- NDAA Section 889 compliant for government surveillance projects
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$35.48 $26.99 Save $8.49

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Pelco

SKU: ONXPS1B

Pelco ONXPS1B Universal Power Supply 12Vdc

12Vdc regulated supply for Pelco ONX cameras, 100–240Vac worldwide input
- Auto-sensing 100–240 Vac input handles North American and European mains
- 12 Vdc regulated output supports ONX-series camera systems reliably
- NDAA Section 889 compliant for government and critical infrastructure use
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$54.43 $40.99 Save $13.44

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Pelco

SKU: ONXPS2B

Pelco ONXPS2B 230Vac to 24Vac Power Supply

230Vac to 24Vac regulated supply for Pelco ONX cameras
- Converts European 230Vac mains to stable 24Vac output for ONX systems
- Compact enclosure-mount design for professional surveillance installations
- Integrated voltage regulation and current management for camera accessories
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$46.16 $33.99 Save $12.17

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Pelco

SKU: ONXWPS1B

Pelco ONXWPS1B Power Supply 100-240Vac to 12Vdc

Universal 100–240Vac to 12Vdc supply for Pelco NXW/NTW housings
- Wide-range AC input eliminates voltage selector configuration needs
- 12Vdc regulated output supports NXW and NTW-series camera housings
- NDAA Section 889 compliant for government and enterprise deployments
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$54.83 $40.99 Save $13.84

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Pelco

SKU: PD-9001GR/AT/AC-NA-MSI

Pelco PD-9001GR/AT/AC-NA-MSI PoE+ Midspan Injector 30W

Single-port PoE+ injector adds 30W power to non-PoE switches
- IEEE 802.3at PoE+ up to 30W for isolated camera additions
- Gigabit Ethernet connection with North American AC cord included
- Compact midspan design for rapid deployment without switch replacement
In stock · Ships same business day

$321.99

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Pelco

SKU: PD-9501GR/AC-NA-MSI

Pelco PD-9501GR 60W PoE+ Injector

60W single-port PoE+ injector for high-power surveillance cameras
- Delivers 60W per port over Gigabit Ethernet for heated housings and IR arrays
- RJ-45 connector integrates into existing Ethernet infrastructure without switches
- Indoor installation with ventilated mounting supports commercial security deployments
In stock · Ships same business day

$169.00 $124.99 Save $44.01

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Pelco

SKU: POE130-ATUS

Pelco POE130-ATUS 130W PoE Power Supply

130W PoE injector for high-power PTZ cameras and heated housings
- 130W single Ethernet cable delivery powers PTZ cameras with heaters and IR
- NDAA Section 889 compliant for government and regulated deployments
- Indoor installation with ventilation; North American power cord included
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$135.79 $99.99 Save $35.80

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Pelco

SKU: POE2436-AT 24

Pelco POE2436-AT 24-Port PoE+ Midspan Injector

24-port PoE+ midspan injector, 36W per port, inline upgrade path
- 24 independent 802.3at PoE+ ports deliver 36W each for fixed domes and turrets
- Inline midspan design integrates between existing switch and cameras—no replacement needed
- AC or DC power input options; NDAA Section 889 compliant for government use
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$2,361.79 $1,736.99 Save $624.80

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Pelco

SKU: POE2436-ATUS

Pelco POE2436-ATUS 24-Port PoE+ Midspan Injector

24-port PoE+ midspan injector for non-PoE switches
- IEEE 802.3at PoE+ powers 24 devices simultaneously without switch replacement
- PD-9024G platform architecture for spare-parts compatibility across Pelco systems
- NDAA Section 889 compliant for federal, state, and critical infrastructure projects
Special Order · Ships in 2-3 weeks

$2,361.79 $1,736.99 Save $624.80

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What to Look For When Buying

The decisions that matter most before you spec.

PoE Budget Planning & Oversubscription Risk

PoE switches are frequently rated for more cameras than their actual power budget allows. Read PoE Budget Planning for IP Camera Deployments to understand injector and supply sizing before deployment. Undersizing power delivery is a leading cause of intermittent camera failures and system collapse under load.

Power Failure Cascades & System Downtime

When electrical infrastructure fails, entire surveillance zones go dark. Why Surveillance Systems Fail During Incidents documents how inadequate power conditioning and lack of UPS cause loss of footage during security events. Plan battery backup for NVRs, edge recorders, and access control hubs.

Cable Distance & Voltage Drop

PoE and DC power delivery degrade over distance; runs beyond 100 meters often require midspan injectors or stepped-up supplies. Verify cable gauge and run length before selecting power distribution topology to avoid under-voltage conditions at the camera.

Multi-Location Standardization

Why Surveillance Standards Collapse After the Third Location shows how power supply mismatches across sites create maintenance nightmares. Choose a consistent voltage (12V, 24V, or PoE) and supplier throughout your deployment to reduce spare parts inventory and service complexity.

Redundant & Managed Power Distribution

Enterprise deployments benefit from redundant power paths, monitored PDUs, and ring topologies that isolate failures. Higher-end Honeywell and i-PRO systems often integrate power monitoring; plan accordingly for large campuses or critical facilities.

Environmental & Temperature Ratings

Outdoor and harsh-environment installations demand industrial-grade supplies rated for extended temperature, humidity, and vibration. Confirm operating range and mean-time-between-failure (MTBF) specifications before deployment in uncontrolled spaces.

Technology Stack

The specs and acronyms that actually affect electrical & power performance.

Power over Ethernet (PoE)

Delivers power and data via Cat5e/6 cable to end devices, eliminating separate power runs. Standard PoE (15.4W) and PoE+ (30W) cover most IP cameras; PoE++ (60–90W) supports high-power PTZ and multi-sensor units. Budget for realistic camera counts per switch to avoid brownout conditions.

Volt & Amperage (12V DC, 24V AC/DC)

Most analog and IP camera supplies operate at 12V DC or 24V AC. Verify polarity and current draw (mA or A) to select the right supply gauge; undersized supplies cause brownout and intermittent operation. Industrial systems often standardize on 24V for longer cable runs with less voltage drop.

Uninterruptible Power Supply (UPS)

Provides instant switchover to battery during mains failure, keeping NVRs, access control panels, and network infrastructure online. Capacity is measured in VA (volt-amperes) and run-time minutes; size for critical equipment and desired hold-up duration (typically 15–60 minutes).

Surge Protection & Transient Voltage Suppression (TVS)

Clamps lightning and inductive load spikes to safe levels, preventing component damage. Essential on outdoor camera circuits and near HVAC, door motors, and panel relays. Look for devices with replaceable cartridges or indication lights.

DIN-Rail Power Distribution

Modular power supplies and distribution blocks mounted on standard 35mm rail for easy expansion and maintenance. Common in control rooms, server racks, and equipment shelters; simplifies wiring and reduces clutter.

Cable Gauge & Voltage Drop

Thicker wire (lower AWG) reduces resistance and voltage loss over distance. For 12V runs >30m or 24V runs >50m, use oversized cable or inject power mid-span. Poor power distribution cascades into storage and network failures.

Typical Deployment Scenarios

Campus with Distributed Cameras (50–100 units)

Deploy a central PoE+ switch (24–48 ports) in the server room backed by a 2kVA UPS, with midspan Geovision or Honeywell injectors at remote buildings. Use surge-protected DIN-rail distribution and a 10–15 minute UPS hold-up to ensure graceful shutdown during mains failure.

Retrofit with Mixed 12V & PoE Cameras

Combine PoE cameras (via switch injector) with legacy 12V dome cameras (fed by industrial 12V DC supply + surge protector). Standardize termination and cable routing to simplify future moves/adds/changes. Size supply at 1.5× total expected load to handle inrush current.

Remote Unmanned Site (10–15 cameras)

Use a compact PoE injector or managed PoE+ switch, protected by a DIN-rail surge module and a 500VA UPS with 30–45 minute battery runtime. Include a backup 4G cellular gateway powered by the same UPS to retain remote access if mains fails.

Access Control + Video Integration (multi-reader facility)

Deploy redundant 24V AC supplies for door controllers and readers, with a separate 12V DC power budget for IP intercoms. Size a 3–5kVA UPS with extended runtime to hold access and surveillance during emergencies; add battery monitoring to alert before depletion.

Frequently Asked Questions

How many cameras can one PoE switch really support?

Rated port count does not equal real-world capacity. A 24-port PoE+ switch (370W budget) typically supports 10–14 high-powered cameras, not 24. Learn why PoE switches fail before rated count and plan injectors or additional switches accordingly.

What size UPS do I need for my surveillance system?

Calculate total watts of all equipment (NVR, switch, access control, intercoms) and multiply by 1.2 for safety. A 1000W device requires a 1.2kVA UPS minimum. For 30–60 minute hold-up, add battery packs. Consult the UPS datasheet runtime table for your exact load.

Can I run cameras over long cable distances without power loss?

Beyond 100 meters, voltage drop becomes significant. Use thicker cable (e.g., 10/2 instead of 18/2) or deploy a midspan PoE injector at the halfway point. Test actual voltage at the camera before and during operation to confirm it meets the minimum 11.5V for PoE devices.

Should I use surge protection outdoors?

Yes. Outdoor camera runs, especially on poles or towers, attract lightning transients that destroy unprotected equipment. Install a surge-suppression cartridge or dedicated SPD (Surge Protective Device) at the camera supply entry point.

What's the difference between 12V and 24V supplies?

24V systems have lower current for the same power, so they suffer less voltage drop over distance and are preferred for long cable runs and industrial deployments. 12V is common in legacy and compact camera designs. Choose based on your camera specs, not preference; mixing standards requires careful supply sizing and testing.

How often should I test my UPS battery backup?

Test battery runtime (load test) at least quarterly, or annually if the UPS is older. Monitor battery age; most UPS batteries degrade after 3–5 years and should be replaced proactively. For critical facilities, use a monitored UPS with email alerts for battery health.

Electrical & Power

Plan Your Deployment

Sub categories

Showing Results for Electrical & Power

Pelco OHEPOWINJ Hi-PoE Injector for OHE Housing

Pelco OHEPS01B OHE Power Supply 12Vdc

Pelco OHEPS02B 230Vac to 24Vac Power Supply

Pelco OHEPS19B 12Vdc Power Supply

Pelco OHEPS20 Housing Power Supply 230Vac to 24Vac

Pelco OHEPS25 230Vac to 24Vac Power Supply

Pelco OHOVPS1B Housing Power Supply 12Vdc

Pelco OHOVPS2B Power Supply 230V to 24V AC

Pelco ONXPS1B Universal Power Supply 12Vdc

Pelco ONXPS2B 230Vac to 24Vac Power Supply

Pelco ONXWPS1B Power Supply 100-240Vac to 12Vdc

Pelco PD-9001GR/AT/AC-NA-MSI PoE+ Midspan Injector 30W

Pelco PD-9501GR 60W PoE+ Injector

Pelco POE130-ATUS 130W PoE Power Supply

Pelco POE2436-AT 24-Port PoE+ Midspan Injector

Pelco POE2436-ATUS 24-Port PoE+ Midspan Injector

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