Power & UPS

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  • Save $536.40
    Altronix MAXIMAL3R 16-Output Access Power Controller - Image 2
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    Altronix MAXIMAL3R

    Altronix MAXIMAL3R 16-Output Access Power Controller

    8-output 12/24VDC rack power supply with battery backup for access control

    • Dual voltage selectable per bank—run 12VDC readers and 24VDC locks from one unit
    • 8 independently fused outputs protect against shorts; fire alarm disconnect included
    • Integrated battery backup with automatic charger for power-loss failover
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  • Save $550.40
    Altronix MAXIMAL3RD 16-Output Access Power Controller - Image 2

    Altronix MAXIMAL3RD

    Altronix MAXIMAL3RD 16-Output Access Power Controller

    8-output 12/24VDC access controller with battery backup for door locks

    • 8 individually supervised outputs rated 4A @ 12VDC or 3A @ 24VDC
    • Integrated battery backup with AC fail and low battery supervision
    • 2U rack mount with fire alarm disconnect for emergency integration
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  • Save $439.45
    Altronix MAXIMAL3RH 8-output access power controller front view with terminal connections

    Altronix MAXIMAL3RH

    Altronix MAXIMAL3RH 8-Output Access Power Controller

    8-output rack power controller, 12/24VDC selectable with battery backup

    • 8 independently fused relay outputs for isolated load control and circuit protection
    • Selectable 12VDC or 24VDC with 6A @ 12VDC / 3A @ 24VDC maximum current
    • Integrated battery charger with AC fail detection and low battery supervision
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  • Save $449.45
    Altronix MAXIMAL3RHD 8-Output Access Power Controller

    Altronix MAXIMAL3RHD

    Altronix MAXIMAL3RHD 8-Output Access Power Controller

    8-channel rack-mount power controller with dual voltage and battery backup

    • 8 independent monitored outputs at 12VDC @ 4A or 24VDC @ 3A per channel
    • Integrated battery backup with AC fail and low battery supervision monitoring
    • Fire alarm disconnect and UL listing for code-compliant access control installations
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  • Save $346.68
    Altronix MAXIMAL3RHV 8-Output Access Power Controller

    Altronix MAXIMAL3RHV

    Altronix MAXIMAL3RHV 8-Output Access Power Controller

    8-output rack access controller with 12/24VDC switchable & battery backup

    • 8 independent fused relay outputs with 12VDC @ 6A or 24VDC @ 3A switchable
    • Integrated battery charger with AC fail & low battery supervision
    • Fire alarm disconnect & 2U rack mount for distributed access infrastructure
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  • Save $539.06
    Altronix MAXIMAL5 12VDC 9A Access Power Controller (view 3)

    Altronix MAXIMAL5

    Altronix MAXIMAL5 12VDC 9A Access Power Controller

    12VDC 9A access controller with 16 fused relay outputs and battery backup

    • 16 independent fused relay outputs for controlled distribution to door strikes and locks
    • 12VDC at 9A regulated output from 115VAC input with integrated battery charging
    • BC800 enclosure combines power supply and relay control in compact single unit
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  • Save $611.61
    Altronix MAXIMAL55 Dual 12VDC Access Power Controller - image 2

    Altronix MAXIMAL55

    Altronix MAXIMAL55 Dual 12VDC Access Power Controller

    Dual 12VDC @ 9.5A access controller with 16 fused outputs and battery charger

    • Two independent 12VDC supplies at 9.5A each for redundant access control power
    • 16 individually fused relay outputs prevent cascading failures across door zones
    • Integrated 12VDC charger supports battery backup during AC mains loss
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  • Save $611.61
    Altronix MAXIMAL55D 2 Power Supply/Charger with Access power

    Altronix MAXIMAL55D

    Altronix MAXIMAL55D 2 Power Supply/Charger with Access power

    Dual 12VDC supply with 19A capacity and integrated battery backup for access control

    • 16 PTC-protected relay outputs isolate circuits and prevent short-circuit damage
    • Dual independent 9.5A supplies deliver 19A total for multi-door lock and strike systems
    • Built-in charger maintains battery backup during power loss without external UPS
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  • Save $492.07
    Altronix MAXIMAL55E 2 Power Supply/Chargers - Eachare 12V

    Altronix MAXIMAL55E

    Altronix MAXIMAL55E 2 Power Supply/Chargers - Eachare 12V

    Dual 12VDC redundant power supply, 9.5A per channel for security systems

    • Two independent 9.5A outputs enable load balancing across access control and surveillance gear
    • 115VAC input with switchable configuration for battery charging and equipment power backup
    • Compact dual-channel design fits standard enclosures for continuous uptime in security applications
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  • Save $664.00
    Altronix MAXIMAL55F 16-Output Fused Relay Controller (view 2)

    Altronix MAXIMAL55F

    Altronix MAXIMAL55F 16-Output Fused Relay Controller

    16-output fused relay controller with dual 12VDC supplies for access systems

    • Dual 12VDC @ 9.5A per supply with 16 individually fused relay circuits
    • FAI and LinQ2 compatible for centralized platform management and monitoring
    • BC800 DIN-rail cabinet with integrated battery charging for backup power
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    $1,676.99 $1,012.99 Save $664.00
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  • Save $664.00
    Altronix MAXIMAL55FD Dual 12VDC 9.5A Power Controller - image 2

    Altronix MAXIMAL55FD

    Altronix MAXIMAL55FD Dual 12VDC 9.5A Power Controller

    Dual 12VDC 9.5A power controller with 16 relay outputs for access control

    • Dual independent 9.5A supplies at 12VDC with integrated battery charger
    • 16 programmable PTC Class 2 relays for door strikes, locks, and gate control
    • FAI-compatible 115VAC input in compact BC800 metal enclosure
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  • Save $516.55
    Altronix MAXIMAL55FE Dual 12VDC 9.5A Power Supply

    Altronix MAXIMAL55FE

    Altronix MAXIMAL55FE Dual 12VDC 9.5A Power Supply

    Dual 12VDC 9.5A power supply with field-expandable architecture

    • Two independent 12VDC outputs at 9.5A each (19A total) from 115VAC
    • Field-upgradeable configuration scales without replacing the entire unit
    • LinQ2-ready intelligent monitoring for remote supervision and diagnostics
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  • Save $684.84
    Altronix MAXIMAL5D Power Supply/Charger W/ACCESSPOWER CONTR (view 3)

    Altronix MAXIMAL5D

    Altronix MAXIMAL5D Power Supply/Charger W/ACCESSPOWER CONTR

    12VDC rack power supply with 16 relay outputs and battery backup

    • 9A output current across 16 independently controlled PTC Class 2 relays
    • Built-in battery backup maintains operation during AC power loss
    • 115VAC input, BC800 19-inch rack or wall-mount enclosure included
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  • Save $571.14
    Altronix MAXIMAL5F 16-Output Access Power Controller

    Altronix MAXIMAL5F

    Altronix MAXIMAL5F 16-Output Access Power Controller

    16-output access controller with 12VDC 9A supply and battery charging

    • 16 independently fused relay outputs for door locks, mag locks, and RTX
    • Integrated lead-acid battery charger with 12VDC 9A regulated primary output
    • FAI-certified supervision with LinQ2 ready for networked monitoring
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  • Save $571.14
    Altronix MAXIMAL5FD 16-Output Access Power Controller (view 3)

    Altronix MAXIMAL5FD

    Altronix MAXIMAL5FD 16-Output Access Power Controller

    16-output access controller with 12VDC 9A supply and battery backup

    • 16 individually supervised PTC relay outputs for multi-lock installations
    • Integrated charger supports fail-safe access control during power loss
    • 115VAC input, Class 2 rated, LinQ2 compatible with included BC800 enclosure
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  • Save $553.37
    Altronix MAXIMAL7 16-Output Access Power Controller
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    Altronix MAXIMAL7

    Altronix MAXIMAL7 16-Output Access Power Controller

    16-output fused power distribution for multi-door access control

    • 16 independent fused outputs—fault at one door won't trip others
    • Centralized enclosure mount replaces daisy-chained supplies and wiring
    • Passive fuse design with no firmware; swap standard fuses to restore power
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  • Save $506.35
    Altronix MAXIMAL75E Dual-Output Expandable Power Supply - image 2
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    Altronix MAXIMAL75E

    Altronix MAXIMAL75E Dual-Output Expandable Power Supply

    Dual 24VDC/12VDC outputs with battery backup in compact BC800

    • Simultaneous 10A @ 24VDC and 10A @ 12VDC from single 115VAC input
    • Expandable architecture scales capacity without replacing entire unit
    • Battery-backup ready charger for uninterruptible power in access control
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  • Save $500.71
    Altronix MAXIMAL75EV Dual Output 12/24VDC Power Supply

    Altronix MAXIMAL75EV

    Altronix MAXIMAL75EV Dual Output 12/24VDC Power Supply

    Dual 12/24VDC output 6A supply for mixed-voltage security systems

    • Independent 12VDC@6A and 24VDC@6A outputs run access control and surveillance simultaneously
    • 220V input rated for international deployments without voltage conversion
    • Battery backup ready for hold-up power during AC mains loss
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  • Save $667.93
    Altronix MAXIMAL75F Dual-Output Access Power Controller
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    Altronix MAXIMAL75F

    Altronix MAXIMAL75F Dual-Output Access Power Controller

    Dual-output access power controller with 16 fused relays and life-safety integration

    • 24VDC @ 9.7A and 12VDC @ 9.5A outputs in one BC800 enclosure
    • 16 individually fused relay outputs for discrete circuit control and isolation
    • FAI compatible and LinQ2 Ready for fire alarm and remote network management
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    Altronix MAXIMAL75FD Pwr Sply/Charger,16 PTC Class 2 Rly Out (view 2)

    Altronix MAXIMAL75FD

    Altronix MAXIMAL75FD Pwr Sply/Charger,16 PTC Class 2 Rly Out

    16-output 24VDC power supply with battery backup for distributed security

    • 16 PTC relay outputs provide independent overcurrent protection per circuit.
    • Selectable 24VDC @ 9.7A or 12VDC @ 9.5A suits mixed-voltage access control loads.
    • Integrated battery charger sustains uninterrupted power during AC input failures.
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  • Save $660.50
    Altronix MAXIMAL75FDV power supply unit showing status indicators and mounting bracket detail

    Altronix MAXIMAL75FDV

    Altronix MAXIMAL75FDV Dual-Output Access Power Controller

    Dual-output 220VAC controller with 24VDC + 12VDC for mixed-voltage access systems

    • Independent 24VDC @ 9.7A and 12VDC @ 9.5A outputs power different device types simultaneously
    • 16 PTC-protected programmable relays with fail-safe auxiliary input for supervised operation
    • Integrated battery charger maintains power during mains loss; BC800 cabinet mount form factor
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    $1,680.49 $1,019.99 Save $660.50
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  • Save $547.53
    Altronix MAXIMAL75FE Dual 10A Power Supply 24VDC/12VDC

    Altronix MAXIMAL75FE

    Altronix MAXIMAL75FE Dual 10A Power Supply 24VDC/12VDC

    Dual 24/12VDC @ 10A each with battery backup and LinQ2 expansion

    • Independent 24VDC and 12VDC outputs at 10A simultaneously from single 115VAC input
    • Integrated battery charger supports uninterrupted power during AC mains failure
    • LinQ2-ready supervision and FAI-certified for security and fire alarm integration
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  • Save $841.81
    Altronix MAXIMAL75K2F 20A Dual Voltage Power Supply - image 2

    Altronix MAXIMAL75K2F

    Altronix MAXIMAL75K2F 20A Dual Voltage Power Supply

    Dual-voltage 20A power supply with 16 fused outputs for security systems

    • Selectable 12VDC or 24VDC at 20 amps per voltage for mixed-load installations
    • 16 independent fused circuits with dedicated auxiliary fuses for load isolation
    • DIN rail or wall-mount panel configuration fits standard enclosures and cabinets
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    Altronix MAXIMAL75K3 Managed PoE+ Switch 75W

    Altronix MAXIMAL75K3

    Altronix MAXIMAL75K3 Managed PoE+ Switch 75W

    Managed PoE+ switch with 75W budget for IP cameras and access control

    • 75W PoE+ power across ports supports multiple high-draw devices simultaneously
    • Managed Layer 2 switching with VLAN and QoS for network segmentation
    • Real-time port supervision monitors connected device status for 24/7 operations
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    $1,894.27 $1,039.99 Save $854.28
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  • Save $640.30
    Altronix MAXIMAL77 16-Output Access Power Controller
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    Altronix MAXIMAL77

    Altronix MAXIMAL77 16-Output Access Power Controller

    16-output access controller with dual 24VDC supplies and battery backup

    • Dual 24VDC outputs at 9.7A each for segregated power distribution
    • 16 independently fused relay outputs for selective load isolation
    • Integrated charger supports backup power during mains loss
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  • Save $815.78
    Altronix MAXIMAL77D 16-Output Access Power Controller

    Altronix MAXIMAL77D

    Altronix MAXIMAL77D 16-Output Access Power Controller

    16-output 24VDC controller with dual supply and battery backup

    • 16 individually supervised PTC Class 2 relay outputs at 9.7A each
    • Dual 24VDC supplies with integrated charger for battery backup operation
    • 115VAC input with regulated 24VDC output in compact BC800 enclosure
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  • Save $520.74
    Altronix MAXIMAL77E Dual 24VDC 9.7A Power Supply

    Altronix MAXIMAL77E

    Altronix MAXIMAL77E Dual 24VDC 9.7A Power Supply

    Dual 24VDC 9.7A supply with battery charger for redundant security power

    • Two independent 24VDC outputs at 9.7A each for multi-zone systems
    • Built-in battery charger support for uninterruptible backup power
    • 115VAC input powers access control, cameras, and distributed devices
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  • Save $695.67
    Altronix MAXIMAL77F Dual 24VDC 19.4A Access Power Controller

    Altronix MAXIMAL77F

    Altronix MAXIMAL77F Dual 24VDC 19.4A Access Power Controller

    Dual 24VDC 19.4A power controller with 16 fused relay outputs for access control

    • Dual independent 24VDC supplies at 9.7A each for redundant or combined distribution
    • 16 individually fused relay channels for door locks, mag-locks, and auxiliary devices
    • LinQ2-ready network integration for remote monitoring and power diagnostics
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    Altronix MAXIMAL77FD Dual 24VDC Access Power Controller

    Altronix MAXIMAL77FD

    Altronix MAXIMAL77FD Dual 24VDC Access Power Controller

    Dual 24VDC access controller with 16 relay outputs for mid-size installations

    • Two independent 9.7A supplies for load balancing across door locks and readers
    • 16 PTC Class 2 relay outputs control multiple access points from one enclosure
    • BC800 DIN-rail mount fits standard electrical cabinets; 115VAC input
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  • Save $561.86
    Altronix MAXIMAL77FE Dual 24VDC 9.7A Power Supply (view 3)

    Altronix MAXIMAL77FE

    Altronix MAXIMAL77FE Dual 24VDC 9.7A Power Supply

    Dual 24VDC 9.7A isolated power supply with integrated battery charging

    • Two isolated 24VDC circuits at 9.7A each for independent loads
    • Built-in UPS charger for battery backup and failover protection
    • Modular expandable design with DIN-rail BC800 enclosure for field growth
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  • Save $553.37
    Altronix MAXIMAL7D AL1024UL power distribution module connectors and terminals detail

    Altronix MAXIMAL7D

    Altronix MAXIMAL7D Access Power Controller. Single AL1024UL

    16-output 24VDC power controller with integrated battery charging

    • 16 individually protected PTC relay outputs handle multiple door locks
    • 24VDC @ 9A capacity powers access control devices across mid-large sites
    • Integrated battery charger supports UPS backup for sustained emergency access
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  • Save $580.18
    Altronix MAXIMAL7F 16-Output Access Power Controller (view 2)

    Altronix MAXIMAL7F

    Altronix MAXIMAL7F 16-Output Access Power Controller

    16-output 24VDC access controller with battery charging for multi-door systems

    • 16 independent fused relay outputs isolate faults and protect each access point
    • 24VDC @ 9A from 115VAC input with integrated battery charger for backup power
    • FAI-certified for fire alarm integration; LinQ2-ready for networked access control
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    Altronix MAXIMAL7FAMZ 12-Output Modular Power Supply (view 4)

    Altronix MAXIMAL7FAMZ

    Altronix MAXIMAL7FAMZ 12-Output Modular Power Supply

    12-output 24VDC modular supply with integrated battery backup

    • Mix-and-match 8 + 4 output configuration for cameras, access control
    • Automatic failover on AC loss with integrated battery supervision
    • Scalable modular platform grows with your security system
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    Altronix MAXIMAL7FD 16-Output Access Power Controller (view 3)

    Altronix MAXIMAL7FD

    Altronix MAXIMAL7FD 16-Output Access Power Controller

    16-output access controller with 24VDC/9A power and battery backup

    • 16 individually supervised Class 2 relay outputs for distributed access loads
    • 24VDC @ 9A supply with integrated charger and battery backup for failsafe operation
    • FAI certified and LinQ2 ready for fire safety compliance and remote monitoring
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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...