Power & UPS
Sub categories
Power Supplies
1079 items
PoE Injectors & Midspans
394 items
Power Delivery & Supplies
2425 items
Surge Protectors
70 items
UPS & Power Management
847 items
DC Power Connectors & Lugs
159 items
Showing Results for Power & UPS
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Add to Cart The item has been addedAltronix
SKU: 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
$307.29 $306.99 Save $0.30The item has been added -
Add to Cart The item has been addedAltronix
SKU: 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
In stock · Ships same business day$217.98 $216.99 Save $0.99The item has been added -
Add to Cart The item has been addedAltronix
SKU: 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
In stock · Ships same business day$461.10 $278.99 Save $182.11The item has been added -
Altronix
SKU: 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
$546.83 $300.99 Save $245.84The item has been added -
Altronix
SKU: 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
$440.19 $241.99 Save $198.20The item has been added -
Altronix
SKU: 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
$396.01 $217.99 Save $178.02The item has been added -
Altronix
SKU: 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
$401.69 $220.99 Save $180.70The item has been added -
Add to Cart The item has been addedAltronix
SKU: 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
In stock · Ships same business day$402.29 $219.99 Save $182.30The item has been added -
Add to Cart The item has been addedAltronix
SKU: 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
In stock · Ships same business day$495.02 $299.99 Save $195.03The item has been added -
Altronix
SKU: 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
$525.37 $317.99 Save $207.38The item has been added -
Add to Cart The item has been addedAltronix
SKU: 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
In stock · Ships same business day$546.83 $296.99 Save $249.84The item has been added -
Add to Cart The item has been addedAltronix
SKU: 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
In stock · Ships same business day$546.83 $295.99 Save $250.84The item has been added -
Add to Cart The item has been addedAltronix
SKU: 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
In stock · Ships same business day$540.40 $326.99 Save $213.41The item has been added -
Altronix
SKU: 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
$540.40 $326.99 Save $213.41The item has been added -
Add to Cart The item has been addedAltronix
SKU: 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
In stock · Ships same business day$198.10 $197.99 Save $0.11The item has been added -
Add to Cart The item has been addedAltronix
SKU: 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
In stock · Ships same business day$440.19 $239.99 Save $200.20The item has been added
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.
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...