Power & UPS
Sub categories
Power Supplies
1027 items
PoE Injectors & Midspans
394 items
Power Delivery & Supplies
1642 items
Surge Protectors
12 items
UPS & Power Management
56 items
DC Power Connectors & Lugs
24 items
Showing Results for Power & UPS
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Aiphone
SKU: IS-PU-UL
Aiphone IS-PU-UL 48V DC Power Supply
48V DC power supply for Aiphone intercom systems, 120W output
- 48VDC 2.1A regulated power supply, 120W output
- 100-240VAC universal input with 50/60Hz operation
- UL-listed wall/ceiling/rack mount for IS systems
$912.00 $524.99 Save $387.01The item has been added -
Add to Cart The item has been addedAltronix
SKU: ACM4
Altronix ACM4 4-Output Access Power Controller
4-output relay controller for access devices, 12–24 VAC/VDC auto-sensing
- Four independently fused outputs with form C dry contacts isolate device failures
- Auto-sensing input accepts 12–24 VAC or VDC with zero configuration required
- Per-output fail-safe/fail-secure selection for mixed-mode door control
In stock · Ships same business day$118.48 $63.99 Save $54.49The item has been added -
Add to Cart The item has been addedAltronix
SKU: ACM4CB
Altronix ACM4CB 4-Output Access Power Controller
4-output access controller, 12–24V AC/DC, independent fail-safe/secure per port
- Four 2A outputs with PTC auto-reset fuses; 10A system max for locks and strikes
- Independently selectable fail-safe or fail-secure mode on each output
- Dry contact trigger inputs; UL294 and cUL certified for access control
In stock · Ships same business day$118.48 $63.99 Save $54.49The item has been added -
Altronix
SKU: ACM4CBE
Altronix ACM4CBE 4-Output Access Power Controller
4-output access controller, 12–24V AC/DC input, fire alarm supervised
- Four 2A independently controlled outputs with PTC auto-reset protection
- Fire alarm disconnect per output with FACP interface integration
- Supports Fail-Safe and Fail-Secure modes for magnetic locks and strikes
$207.39 $112.99 Save $94.40The item has been added -
Altronix
SKU: ACM4E
Altronix ACM4E 4-Output Access Power Controller
4-output access controller, 12–24V input, independent 2.5A fuses per line
- Four independently fused outputs at 2.5A each prevent single-lock failures
- Configurable per output: direct power, dry relay contacts, or aux supply
- Auto-sensing 12–24 VAC/VDC input with UL294 access control certification
$207.39 $112.99 Save $94.40The item has been added -
Add to Cart The item has been addedAltronix
SKU: ACM8
Altronix ACM8 8-Output Access Power Controller
8 independent relay outputs for multi-door access control, 12–24V auto-detect
- Each output individually fused; short on one lock won't disable others
- Fire alarm disconnect per output; selectively cut power during emergency egress
- Compact board (8" × 4") handles mag locks, strikes, and door holders with dry contacts
In stock · Ships same business day$152.87 $81.99 Save $70.88The item has been added -
Add to Cart The item has been addedAltronix
SKU: ACM8CB
Altronix ACM8CB 8-Output Access Power Controller
8-output access controller, 12–24V AC/DC, 2.5A per output with PTC protection
- Eight independently controlled outputs with auto-resetting PTC protection eliminate fuse replacement on overcurrent
- Accepts open collector and dry contact triggers from card readers, keypads, and access control panels
- Compact board rated 10A total, 2.5A per output for electromagnetic locks and electric strikes
In stock · Ships same business day$152.87 $81.99 Save $70.88The item has been added -
Altronix
SKU: ACM8CBE
Altronix ACM8CBE 8-Output Access Power Controller
8-output access controller, 12–24V AC/DC, 2.5A per output with PTC
- Eight independent 2.5A outputs with auto-resetting thermal protection
- Accepts 12–24 VAC or VDC input; output matches input voltage
- Configurable fail-safe/fail-secure modes per output; FACP disconnect ready
$341.16 $185.99 Save $155.17The item has been added -
Altronix
SKU: ACM8RLED
Altronix ACM8RLED 16-Output Monitored LED Board
16-output monitored LED board for rack-mount security systems
- 16 independent LED channels with individual output monitoring
- Rack-mount form factor integrates into Altronix power systems
- Real-time status feedback across multiple zones or subsystems
$221.87 $121.99 Save $99.88The item has been added -
Add to Cart The item has been addedAltronix
SKU: ACMS12
Altronix ACMS12 Dual-Input 12-Output Access Power Controller
12-output 24VDC access controller with dual-input redundancy and fire alarm disconnect
- 12 independent fused outputs isolate each access control circuit from overcurrent
- Dual-input architecture supports redundant power sources for continuous operation
- Board-form factor integrates directly into control panels with fire safety disconnect
In stock · Ships same business day$374.05 $199.99 Save $174.06The item has been added -
Add to Cart The item has been addedAltronix
SKU: ACMS12CB
Altronix ACMS12CB 12-Output Access Power Controller
12-output access control power board with dual inputs and PTC protection
- 12 independently protected channels with PTC thermal protection per output
- 2 independent power inputs for redundancy and load balancing
- Board-level form factor mounts directly in control cabinets
In stock · Ships same business day$374.05 $199.99 Save $174.06The item has been added -
Altronix
SKU: ACMS8
Altronix ACMS8 8-Output Access Power Controller
8-output access controller with dual 5–24VDC inputs and independent fuse protection
- Eight independently controlled outputs, each fused at 3A/32V to isolate door lock failures
- Dual isolated power inputs accept mixed voltages (e.g., 12VDC + 24VDC) for flexible wiring
- Eight trigger inputs support mag locks, strikes, and sensors in fail-safe or fail-secure modes
$250.25 $137.99 Save $112.26The item has been added -
Add to Cart The item has been addedAltronix
SKU: ACMS8CB
Altronix ACMS8CB 8-Channel PoE Access Power Controller
8-channel PoE power controller with supervised outputs for access control
- 8 independent PTC-protected outputs prevent faults from affecting adjacent channels
- Single PoE input eliminates separate power runs to multiple doors and readers
- Output supervision monitors each channel and reports faults to access system
In stock · Ships same business day$250.25 $137.99 Save $112.26The item has been added -
Altronix
SKU: ACMS8K1
Altronix ACMS8K1 Dual Input Access Power Controller Kit
Dual input voltage controller for access systems with power redundancy
- Manages primary and secondary power sources in single kit deployment
- Regulated output maintains consistent voltage across varying input conditions
- Complete kit includes ACMS8 controller and all supporting components
$348.59 $191.99 Save $156.60The item has been added -
Add to Cart The item has been addedAltronix
SKU: AL1002ULADA
Altronix AL1002ULADA 24VDC 10A NAC Power Extender
24VDC 10A NAC extender expands fire alarm capacity via 120VAC input
- Four Class B, two Class A, or mixed output configs—choose only what you need
- 10A total at 24VDC with 2.5A per-output ceiling prevents circuit starvation
- Dual 8–30VDC dry-contact triggers sync with Potter/Amseco, Gentex, System Sensor
In stock · Ships same business day$859.95 $463.99 Save $395.96The item has been added -
Altronix
SKU: AL1002ULADAJ
Altronix AL1002ULADAJ NAC Power Extender - 24VDC @ 10 amp. 2
24VDC @ 10A NAC power extender with dual trigger inputs and loop supervision
- 2 Class A or 4 Class B configurable notification circuits with 2.5A per circuit max
- Syncs with Potter/Amseco, Gentex, System Sensor, CooperWheelock plus Temporal Code 3
- Programmable output loop supervision, trouble memory, and 1A auxiliary 24VDC output
$907.12 $497.99 Save $409.13The 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...