Power & UPS

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    Altronix AL175ULX Dual-Output Access Control Power Supply/Charger
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    Altronix AL175ULX

    Altronix AL175ULX Dual-Output Access Control Power Supply/Charger

    Dual-output 12/24VDC supply for access control with battery backup

    • Two independent Class 2 circuits, 1.75A per output for multi-door locks
    • Selectable 12VDC or 24VDC voltage—no field redesign between hardware brands
    • UL 294, CSFM, and NYC DoB approved for fire-rated installations
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    Altronix AL175ULX2 Dual 12/24VDC Power Supply Charger
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    Altronix AL175ULX2

    Altronix AL175ULX2 Dual 12/24VDC Power Supply Charger

    Dual 12/24VDC supply with battery backup for access control

    • Two independent Class 2 outputs, each selectable 12VDC or 24VDC
    • 1.75A continuous per output to power locks and card readers simultaneously
    • Supports sealed lead-acid battery backup for failover during AC loss
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    Altronix AL175X220 Dual-Output 12/24VDC Power Supply

    Altronix AL175X220

    Altronix AL175X220 Dual-Output 12/24VDC Power Supply

    Dual-output 12/24VDC supply with battery charging for access control

    • 1.75A per output with selectable voltage; supports two 7AH batteries
    • Dual PTC-protected outputs auto-reset on fault; no external breakers needed
    • 220VAC input with Form C contacts for fire alarm integration and supervision
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    Altronix AL176UL 12/24VDC 1.75A Power Supply Charger
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    Altronix AL176UL

    Altronix AL176UL 12/24VDC 1.75A Power Supply Charger

    Compact 12/24VDC supply with battery backup for small security circuits

    • Selectable 12VDC or 24VDC output at 0.75A per voltage rail
    • Integrated SLA/gel battery charger with instantaneous AC failover
    • AC failure and low battery supervision contacts for system monitoring
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    Altronix AL176ULB Single Output Power Supply/Charger (view 3)
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    Altronix AL176ULB

    Altronix AL176ULB Single Output Power Supply/Charger

    12VDC regulated supply with battery backup for access control

    • 1A output supports door locks and readers with AC fail detection
    • Integrated battery charger with low-battery and presence supervision
    • Compact 5.3" × 3.1" board fits retrofit installations, UL 294 Class 2
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  • Save $144.84
    Altronix AL176ULX 12/24VDC 1.75A Access Control Power Supply
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    Altronix AL176ULX

    Altronix AL176ULX 12/24VDC 1.75A Access Control Power Supply

    Selectable 12/24VDC 1.75A power supply for access control with battery backup

    • 1.75A continuous output runs magnetic locks, card readers, and sensors without sag
    • Dual-voltage selection (12 or 24VDC) eliminates need for multiple supplies in one cabinet
    • Charges up to two 7AH batteries; AC failure and low-battery contacts with LED status
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    Altronix AL201UL 12VDC 1.75A Power Supply Charger
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    Altronix AL201UL

    Altronix AL201UL 12VDC 1.75A Power Supply Charger

    12VDC regulated supply with integrated battery charger for security systems

    • 0.75A continuous output from 24VAC input with automatic trickle charging
    • AC Fail and Low Battery supervision contacts signal outages to control panels
    • Compact 8.5" × 7.5" × 3.5" enclosure combines supply and charger in one unit
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    Altronix AL201ULB 12VDC 1.75A Power Supply/Charger

    Altronix AL201ULB

    Altronix AL201ULB 12VDC 1.75A Power Supply/Charger

    12VDC board-mount supply with 1.75A output and battery backup

    • 24VAC input with integrated battery charger for access control systems
    • AC Fail and Low Battery supervision for continuous system monitoring
    • Compact 5.25" × 3.0" × 1" form factor, UL Listed, 0–49°C operating range
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    Altronix AL201ULX 12VDC 1.75A Regulated Power Supply (view 3)
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    Altronix AL201ULX

    Altronix AL201ULX 12VDC 1.75A Regulated Power Supply

    12VDC 1.75A regulated supply with AC fail alarm and battery backup

    • 12VDC @ 1.75A output powers access control, locks, and sensors reliably
    • 24VAC input with integral transformer—no external step-down needed
    • AC fail and low battery alarms alert you before power loss affects devices
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    Altronix AL300ULB Dual-Voltage Power Supply/Charger 2.5A (view 2)
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    Altronix AL300ULB

    Altronix AL300ULB Dual-Voltage Power Supply/Charger 2.5A

    Dual-voltage 2.5A charger with AC failure & battery low supervision

    • Selectable 12VDC or 24VDC output matches access control or alarm panels
    • 2.5A continuous current powers single reader + lock or dual alarm devices
    • Form C supervision contacts alert to AC loss and low battery conditions
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    Altronix AL300ULXD 12/24VDC 2.5A Power Supply
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    Altronix AL300ULXD

    Altronix AL300ULXD 12/24VDC 2.5A Power Supply

    Dual-voltage 2.5A AC/DC supply with battery backup for access control

    • Selectable 12VDC or 24VDC output; switch at install, no jumpers needed
    • 2.5A rated current handles locks, readers, and control panels in one unit
    • Battery backup with AC fail and low battery supervision built in
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    Altronix AL400ACMCB220 12/24VDC 4A 8-Relay Controller (view 3)

    Altronix AL400ACMCB220

    Altronix AL400ACMCB220 12/24VDC 4A 8-Relay Controller

    8-relay controller with selectable 12/24VDC 4A output and integrated battery charging

    • 8 independent PTC Class 2 relays for multi-door strike and lock control
    • 220VAC input with built-in automatic battery charger for backup power integration
    • Compact BC400 DIN-rail enclosure, FAI-approved for life safety installations
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    Altronix AL400M220 power supply terminals and connections detail

    Altronix AL400M220

    Altronix AL400M220 12/24VDC Power Supply 4A/3A

    Dual-voltage 12/24VDC power supply for security systems, 4A/3A

    • Selectable output with momentary switch between 12VDC at 4A or 24VDC at 3A
    • UL-listed regulated output for access control, cameras, and door locks
    • Compact form factor fits standard racks and equipment enclosures
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    Altronix AL400PD4220 4-Output 220VAC Power Supply

    Altronix AL400PD4220

    Altronix AL400PD4220 4-Output 220VAC Power Supply

    4-output 220VAC power supply for distributed camera and access control

    • Four independent regulated outputs isolate faults—one overload won't affect others
    • 220VAC input accepts regional utility voltage without transformer step-down
    • Modular PD4 design allows field reconfiguration as deployment needs shift
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    Altronix AL400PD8220 8-Output Power Supply 12/24VDC 220VAC

    Altronix AL400PD8220

    Altronix AL400PD8220 8-Output Power Supply 12/24VDC 220VAC

    8-output 220VAC power supply with 12/24VDC selectable for multi-circuit installations

    • 8 independent outputs with individual fusing for isolated circuit protection
    • Selectable 12VDC or 24VDC output to match peripheral voltage requirements
    • BC300 integration compatible for centralized power distribution management
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    Altronix AL400UL 12/24VDC 4A Power Supply/Charger
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    Altronix AL400UL

    Altronix AL400UL 12/24VDC 4A Power Supply/Charger

    Dual-voltage 12/24VDC supply with battery backup and AC failure relay

    • 4A @ 12VDC or 3A @ 24VDC selectable output for mixed-voltage systems
    • Integrated SLA/gel battery charger with AC failure and low-battery supervision
    • UL-listed for access control, alarm, fire, and emergency signaling systems
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    Altronix AL400UL3 Triple Output Power Supply - image 2
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    Altronix AL400UL3

    Altronix AL400UL3 Triple Output Power Supply

    Three independent DC outputs (5V/12V/24V) in one compact UL-listed supply

    • Simultaneous 5V @ 1.75A, 12V @ 1.75A, 24V @ 1.5A without voltage sharing
    • Integrated charger for two 12VDC/7AH batteries with AC failure supervision contacts
    • UL294, UL603, UL1069, UL1481 certified for access control and alarm systems
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    Altronix AL400UL3X Triple Output Power Supply/Charger - image 2

    Altronix AL400UL3X

    Altronix AL400UL3X Triple Output Power Supply/Charger

    Three independent DC outputs (5V/12V/24V) with battery backup in one enclosure

    • 5VDC @ 1.75A, 12VDC @ 1.75A, 24VDC @ 1.5A from single 115VAC input
    • Charges up to two 12VDC/12AH sealed lead-acid batteries for backup power
    • AC Failure, Low Battery, and Battery Presence supervision contacts for monitoring
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    Altronix AL400ULACM 8-Output Access Power Controller
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    Altronix AL400ULACM

    Altronix AL400ULACM 8-Output Access Power Controller

    8-output access controller with dual voltage (12/24VDC) and battery backup

    • 8 fused Class 2 relay outputs protect each door circuit independently
    • Selectable 12VDC @ 4A or 24VDC @ 3A to match your hardware
    • Integrated battery charger support for backup power during mains loss
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    Altronix AL400ULACMCB 8-Output Access Power Controller
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    Altronix AL400ULACMCB

    Altronix AL400ULACMCB 8-Output Access Power Controller

    8-output access power controller, 12/24VDC selectable, UL listed

    • 8 PTC-protected channels prevent single-device faults from shutting down power
    • Selectable 12VDC or 24VDC output covers legacy and modern access hardware
    • 4A @ 12VDC or 3A @ 24VDC per channel with 10A total budget at 12VDC
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    Altronix AL400ULACMCBJ Dual-Voltage Power Supply & Charger
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    Altronix AL400ULACMCBJ

    Altronix AL400ULACMCBJ Dual-Voltage Power Supply & Charger

    Dual-voltage 12/24VDC supply with integrated battery charger for access control

    • Selectable 12VDC (4A continuous) or 24VDC (3A continuous) output from single unit
    • 10A peak surge capacity at 12VDC handles solenoid lock inrush without dropout
    • Built-in lead-acid battery charger eliminates need for separate charging module
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    Altronix AL400ULACMJ Power Supply/Charger with Access power (view 2)

    Altronix AL400ULACMJ

    Altronix AL400ULACMJ Power Supply/Charger with Access power

    Dual-voltage 12/24VDC power supply with integrated battery charging

    • 4A continuous at 12VDC, 3A at 24VDC with 10A peak capacity
    • Simultaneous battery charging and system operation for access control
    • UL Listed for security infrastructure and door lock applications
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    Altronix AL400ULB 12/24VDC Power Supply Charger Board
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    Altronix AL400ULB

    Altronix AL400ULB 12/24VDC Power Supply Charger Board

    Dual-voltage 12/24VDC board with battery charging and fire alarm disconnect

    • Selectable 12VDC or 24VDC output post-install; 4A @ 12V or 3A @ 24V main supply
    • Integrated battery charger and supervision (AC fail, low battery, presence detect)
    • UL1481 fire alarm disconnect relay de-energizes non-fire loads during alarm state
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    Altronix AL400ULM 5-Output 12/24VDC Access Power Supply
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    Altronix AL400ULM

    Altronix AL400ULM 5-Output 12/24VDC Access Power Supply

    5-output 12/24VDC power supply with PTC protection for access control

    • Five independent PTC Class 2 circuits—each output self-resets after overload
    • Selectable 12VDC (4A) or 24VDC (3A) from single 115VAC unit
    • Battery charging circuit support for backup power integration
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    Altronix AL400ULMR 5-Output Power Supply Charger
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    Altronix AL400ULMR

    Altronix AL400ULMR 5-Output Power Supply Charger

    Dual-voltage 5-output charger for mixed security loads with battery backup

    • 10A @ 24VDC primary output handles access control and fire panels
    • Selectable 12VDC or 24VDC configuration across 5 independent channels
    • Integrated battery charger with UL Listed certification for backup power
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    Altronix AL400ULMX 12/24VDC 4A UL Power Supply (view 4)

    Altronix AL400ULMX

    Altronix AL400ULMX 12/24VDC 4A UL Power Supply

    Dual-voltage 12/24VDC power supply with battery backup for security

    • Selectable 12VDC or 24VDC output eliminates need for multiple units
    • Battery backup maintains operation during AC power loss
    • UL listed; delivers up to 10A @ 24VDC or 0.5A @ 12VDC
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    Altronix AL400ULPD4 4-Output 12/24VDC Power Supply Charger (view 3)
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    Altronix AL400ULPD4

    Altronix AL400ULPD4 4-Output 12/24VDC Power Supply Charger

    4-output 12/24VDC supply with integrated battery backup for access control

    • Four independent 4A outputs keep door locks, readers, and sensors on isolated circuits
    • Selectable 12VDC or 24VDC output matches your existing device voltage without rewiring
    • Built-in battery charging and AC fail detection maintain power during mains loss
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    Altronix AL400ULPD4CB 4-Output 12/24VDC Power Supply
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    Altronix AL400ULPD4CB

    Altronix AL400ULPD4CB 4-Output 12/24VDC Power Supply

    Four independent 12/24VDC outputs with battery backup for access control

    • 4A @ 12VDC or 3A @ 24VDC per output; switch voltages simultaneously
    • Integrated rechargeable battery backup with automatic AC-fail switchover
    • Four isolated regulated outputs prevent cascading failures across zones
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    Altronix AL400ULPD4CBR 4-Output Power Supply Charger (view 2)

    Altronix AL400ULPD4CBR

    Altronix AL400ULPD4CBR 4-Output Power Supply Charger

    4-output 12/24VDC supply with battery backup and AC fail detection

    • Four independent outputs, each rated 4A @ 12VDC or 3A @ 24VDC
    • Integrated battery charging with automatic switchover on AC power loss
    • AC fail, low battery, and battery presence supervision on each circuit
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    Altronix AL400ULPD8 Dual 12/24VDC 4A Power Supply Charger (view 3)
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    Altronix AL400ULPD8

    Altronix AL400ULPD8 Dual 12/24VDC 4A Power Supply Charger

    8-output 12/24VDC charger with battery backup and AC fail alarm

    • 8 independent fused outputs at 4A each; selectable 12 or 24VDC voltage
    • Integrated battery charger with automatic AC fail switchover for continuous power
    • UL listed; 115VAC input; individual circuit protection prevents cascade faults
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    Altronix AL400ULPD8CB 8-Output Power Supply Charger
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    Altronix AL400ULPD8CB

    Altronix AL400ULPD8CB 8-Output Power Supply Charger

    8-output 12/24VDC power supply with integrated battery charger

    • 8 independent regulated outputs at 4A (12V) or 3A (24V) per channel
    • Selectable voltage output (12VDC or 24VDC) without changing hardware
    • Built-in battery charger with AC fail, low battery, and presence supervision
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    Altronix AL400ULPD8CBR 12/24VDC 4A Power Supply Charger

    Altronix AL400ULPD8CBR

    Altronix AL400ULPD8CBR 12/24VDC 4A Power Supply Charger

    Dual-voltage 12/24VDC charger with battery backup for security systems

    • Selectable 12VDC @ 4A or 24VDC @ 3A output for access control and alarms
    • Integrated sealed lead-acid battery charger with AC fail detection
    • Battery presence and low-voltage supervision for continuous operation monitoring
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    Altronix AL400ULXF 4A Dual Output Power Supply (view 3)
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    Altronix AL400ULXF

    Altronix AL400ULXF 4A Dual Output Power Supply

    Dual 12V/24V output supply with battery backup for access control

    • 4A @ 12VDC and 3A @ 24VDC outputs run simultaneously for mixed loads
    • Integrated battery backup with automatic switchover and AC fail detection
    • UL Listed with supervision for low battery and backup unit presence
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    Altronix AL400ULXJ 4A Power Supply Charger 12/24VDC

    Altronix AL400ULXJ

    Altronix AL400ULXJ 4A Power Supply Charger 12/24VDC

    Dual-voltage 4A power supply with integrated battery backup and AC monitoring

    • Selectable 12VDC or 24VDC output with 4A @ 12V or 3A @ 24V capacity
    • Built-in battery charger with AC Fail, Low Battery, and Battery Presence supervision
    • UL Listed red XL enclosure mounts on wall or DIN rail for security systems
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    Altronix AL400ULXJG 4A 12/24VDC Power Supply Charger

    Altronix AL400ULXJG

    Altronix AL400ULXJG 4A 12/24VDC Power Supply Charger

    Dual-voltage 4A/3A power supply with integrated battery charger

    • Selectable 12VDC or 24VDC output runs mixed-voltage access control and alarm loads
    • Built-in battery charger with AC fail and low-battery supervision, no external module
    • UL listed, XL metal housing mounts wall or cabinet for mid-to-large security systems
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    Altronix AL400ULXPD16 16-Output Power Supply Charger (view 3)
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    Altronix AL400ULXPD16

    Altronix AL400ULXPD16 16-Output Power Supply Charger

    16-output 12/24VDC supply with integrated battery backup for security systems

    • 16 independent terminals eliminate daisy chains; selectable 12 or 24VDC output
    • Built-in battery charging circuit maintains backup power during AC mains failure
    • AC Fail, Low Battery, and Battery Presence supervision signals to control panel
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Power & UPS

Power is the foundation of every surveillance, access-control, and network system. Centralized, supervised, battery-backed power keeps cameras recording, doors locking, and switches forwarding during outages and surge events. Choose components sized for your load — recorder UPS, camera supplies, PoE midspans, surge protection — and your system runs through the events that take down unmanaged installations.

Plan a Reliable Power System

  • Sized power supplies — 12V or 24V DC sized to total device load plus 25% headroom for spin-up, aging, and expansion.
  • UPS & battery backup — runtime sized to your outage profile, with managed shutdown for NVRs and access controllers.
  • PoE budgets — 802.3af, at, and bt midspans/switches sized for total port load, not just per-port maximum.
  • Surge protection & grounding — at the building entrance and at outdoor camera locations exposed to lightning.
  • Distribution & redundancy — rack PDUs, DIN-rail supplies for industrial cabinets, and dual-source feeds for life-safety loads.

Shop by Category

UPS & Battery Backup
Rack-mount and tower UPS units sized to NVR, switch, and controller load — line-interactive and double-conversion topologies for clean recovery.
Power Supplies
12V DC and 24V DC supplies for camera and access-control panels — sized by current draw with 25% headroom for surge and expansion.
PoE Injectors & Midspans
802.3af, 802.3at, and 802.3bt midspans for legacy switches — 15W to 90W per port for PTZ cameras, displays, and high-power readers.
Rack Power Supplies
19-inch chassis with distributed outputs — PTC fused, supervised, and battery-backup ready for multi-camera or access-control deployments.
DIN Rail Power Supplies
Industrial DIN-rail supplies for control cabinets — wide-range AC input, redundant pairing, and temperature-rated for harsh environments.
Power Delivery & Supplies
Centralized distribution panels, surge protection, and grounding products for organized, code-compliant low-voltage installations.
Surge Protectors
Inline Ethernet, coax, and AC surge suppressors for outdoor cameras, antenna runs, and equipment-room protection — critical for rooftop and pole-mount installations.

Featured Brands

Altronix
Access-control and CCTV power — rack and wall enclosures, battery backup, and FACP-compatible supervised power.
Lifesafety Power
Networked supervised power for access control and fire — Mercury, LenelS2, and Genetec integrations.
NETGEAR
PoE+ and PoE++ switches and midspans with high port-count power budgets for camera and Wi-Fi deployments.
Ubiquiti
UniFi PoE switches with managed budget per port — strong fit for IT-managed surveillance VLANs.
Cradlepoint
Cellular failover routers with PoE and dual-SIM for branch-site continuity when WAN drops.
Transition Networks
Industrial PoE++ media converters and ruggedized switches for outdoor, transportation, and utility deployments.

Buyer FAQ

How do I size a UPS for my surveillance system?
Add up the wattage of every device on the UPS — recorder, switch, monitor, controller, and PoE budget for the cameras — then add 25% headroom for spin-up and aging. Multiply by your target runtime (typically 15–30 minutes for managed shutdown, 4–8 hours for site continuity) to pick a VA rating. Our team can review your bill of materials and recommend a model — submit details via the contact form.
What's the difference between PoE, PoE+, and PoE++?
PoE (802.3af) delivers up to 15.4W per port — fine for fixed-lens cameras and basic readers. PoE+ (802.3at) lifts that to 30W — covers PTZ heaters, IR illuminators, and most multi-sensor cameras. PoE++ (802.3bt Type 3/4) runs up to 60W or 90W per port for high-power thermal cameras, displays, and access-control controllers. Pick a switch or midspan whose total budget covers the sum of per-port loads, not just the per-port maximum.
Why use a midspan instead of a PoE switch?
When you have an existing non-PoE switch you want to keep, a midspan (PoE injector) adds power without replacing the switch. Midspans also help when you need to upgrade a few high-power ports (60W or 90W) without buying an entire 802.3bt switch.
Do I need surge protection on outdoor cameras?
Yes — outdoor Ethernet runs collect induced energy during nearby strikes even when the camera isn't directly hit. Inline PoE surge protectors at the camera (or at the building entry) clamp the spike and protect the recorder/switch. Critical for any pole-mount or rooftop deployment.
How do I plan power for an access-control system?
Each door typically needs 1–2A at 12V DC (controller + reader + lock + REX). Multiply by door count, then size a supervised power supply (Altronix, Lifesafety) with battery backup matched to UL 294 / NFPA 72 hold-up time for your jurisdiction. Our Senior Specialist team has working integrators who size these systems daily.

Need help sizing your system?

Our team includes working integrators who size camera-system power, PoE budgets, and access-control supplies daily. Send your bill of materials, recorder count, and target runtime — we'll recommend the right UPS, supply, and midspans before you order.

Talk to a Senior SpecialistAbout IP Security Depot

Quick links to guides

Datacenter UPS Sizing Guide
Size a datacenter UPS in kW vs kVA, profile load, pick N+1 or 2N redundancy, and plan for AI rack densities of 40-100+ kW. Vert...
UPS Topology: Online vs Line-Interactive vs Offline
Compare online double-conversion vs line-interactive vs standby UPS topology. Selection matrix by use case, true cost trade-off...
Rack PDU Buyer's Guide
Basic, metered, monitored, switched PDU - and when each one earns its place. Plug references, phase config, dual-cord, brand co...
PoE Power Budget Planning
Size your PoE switch for surveillance and access control. PoE class reference, camera-count-by-wattage table, worked deployment...
Battery Backup Runtime Calculator
Free UPS runtime calculator. Enter load, battery voltage and Ah, chemistry (VRLA / lithium), depth of discharge, temperature. G...