Relays & I/O Interfaces
Showing Results for Relays & I/O Interfaces
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Altronix
SKU: RB7
Altronix RB7 Ultra-Sensitive Relay Module
Single-output relay module for low-voltage DC control switching
- Selectable 7–12VDC or 24VDC input matches your existing power rail without extra modules.
- Switches 120VAC or 28VDC loads up to 1A, covering sirens, strobes, and solenoid locks.
- Ultra-sensitive input draws minimal current, eliminating buffers on logic or sensor outputs.
$144.22 $143.99 Save $0.23 -
Altronix
SKU: RBR1224
Altronix RBR1224 DPDT Relay Module 24VDC
Dual-relay module for 12/24VDC control of 120VAC or 28VDC loads
- Two independent DPDT outputs let you switch a door strike and mag-lock from one module.
- Selectable 12/24VDC input eliminates hardware swaps across mixed-voltage control circuits.
- Supports 120VAC (0.5A) and 28VDC (2A) loads, covering solenoid strikes and mag-locks.
In stock · Ships same business day$42.06 $41.99 Save $0.07 -
Altronix
SKU: RBSN
Altronix RBSN DPDT Relay Module 12/24VDC
Dual-pole relay module for 12/24VDC alarm and access control switching
- DPDT relay module 12/24VDC with two switching circuits
- 1A @ 120VAC or 2A @ 28VDC contact ratings
- Dual-pole design simplifies multi-device control
In stock · Ships same business day$20.33 $19.99 Save $0.34 -
Altronix
SKU: RBSNP
Altronix RBSNP 12/24VDC DPDT Polarized Relay Module
DPDT polarized relay for gate operators and reversible motor control
- DPDT configuration switches two independent circuits, eliminating a second relay in tight enclosures.
- Polarized design enables true directional control for gate operators and reversing motors.
- DIN rail form factor mounts directly in standard panels across 12/24VDC infrastructures.
In stock · Ships same business day$19.40 $18.99 Save $0.41 -
Altronix
SKU: RBSNTTL
Altronix RBSNTTL Ultra-Sensitive DPDT Relay Module
Compact DPDT relay module for low-power detection & control circuits
- DPDT switching lets you control two independent circuits from one 12/24VDC trigger.
- Handles 1A @ 120VAC or 2A @ 28VDC — covers strikes, solenoids, and relay coils.
- DIN rail form factor fits standard enclosures; lifetime warranty backs field deployment.
In stock · Ships same business day$27.38 $26.99 Save $0.39 -
Altronix
SKU: RBST
Altronix RBST DPDT Relay Module 6/12/24VDC
Dual-circuit DPDT relay module, 6/12/24VDC selectable input
- DPDT relay module with 6/12/24VDC selectable input
- Two independent switching circuits per module
- 1A @ 120VAC or 2A @ 28VDC contact ratings
In stock · Ships same business day$20.43 $19.99 Save $0.44 -
Altronix
SKU: RBTUL
Altronix RBTUL Ultra-Sensitive Relay Module SPDT
Ultra-sensitive 1A SPDT relay module for 12/24VDC security systems
- Ultra-sensitive SPDT relay for security sensor triggers
- Minimal input current — no buffering required
- 1A @ 28VDC contact rating for low-power loads
$34.21 $33.99 Save $0.22 -
Altronix
SKU: RBUL
Altronix RBUL Ultra-Sensitive Relay Module 12/24VDC
Ultra-low 30mA relay module for 12/24VDC access control & alarms
- Selectable 12/24VDC input lets one SKU cover mixed-voltage sites without extra stock.
- 30mA operating current reduces power supply load on long runs and auxiliary circuits.
- SPDT output supports energize-to-activate or fail-safe logic; switches 1A @ 28VDC.
$20.94 $19.99 Save $0.95 -
Altronix
SKU: RDC48
Altronix RDC48 48VDC DIN Rail Relay Module
48VDC DIN rail relay module with DPDT switching for security control
- DPDT contacts switch two independent circuits simultaneously, supporting failsafe and failopen paths.
- 10A per pole handles lock solenoids and motorized strikes without additional relay staging.
- Native 48VDC input mounts directly on 35mm DIN rail—no voltage conversion or bracket adapters needed.
$35.94 $34.99 Save $0.95 -
Altronix
SKU: ST3
Altronix ST3 6-Output Timer Relay Module
6-output timer relay module for multi-device switching on Altronix snap track
- Six independent timed relay outputs let you sequence gates, locks, and lighting from one module.
- Mounts directly on Altronix SMP3, SMP5, or AL624 snap track—no separate enclosure required.
- Lifetime warranty on a US-made unit measuring 3 × 3.7 × 2 in and weighing 0.45 lb.
$11.59 $0.99 Save $10.60 -
Axis
SKU: 02380-001
Axis 02380-001 Network Sound Projector
Network speaker with PoE power, IK10 vandal rating, -40 to +55°C outdoor operation
- Two-way audio with built-in mic and DSP-tuned voice clarity for announcements
- IK10 housing withstands 20-joule impacts in high-risk or public-access locations
- Single PoE+ cable eliminates separate power supply; web-based management, no server
$919.00 $890.99 Save $28.01 -
Axis
SKU: 0831-001
Axis A9188-VE Network I/O Relay Module - 0831-001
Network I/O relay module with 8 inputs, 8 relays, IP66 sealed
- 8 configurable inputs and 8 Form C relays for sensor integration and device control
- PoE+ or 12/24 V DC power eliminates dedicated wiring constraints
- IP66 enclosure rated for outdoor and harsh-environment deployments
$1,019.00 $953.99 Save $65.01 -
Axis
SKU: 02862-001
Axis A9910 I/O Relay Expansion Module - 02862-001
PoE I/O relay module with 8 supervised ports and 4 Form C relays
- 8 supervised I/O ports detect open/short and tamper conditions instantly
- 4 Form C relays handle wet and dry contact switching for locks and gates
- 4 Modbus sensor ports integrate temperature and humidity monitoring directly
In stock · Ships same business day$319.00 $308.99 Save $10.01 -
Axis
SKU: 01765-001
Axis I/O Indication LED Red - 01765-001
Red I/O LED indicator for real-time recording status on Axis cameras
- Compact form factor mounts discreetly on ceiling or wall in tight spaces
- I/O port connection—no separate power supply or networking required
- IP65-rated for healthcare, retail, and transportation surveillance compliance
In stock · Ships same business day$73.00 $70.99 Save $2.01 -
Axis
SKU: 02554-001
Axis T6112 MKII Audio and I/O Interface - 02554-001
Two-mic audio interface with I/O for Axis cameras, PoE powered
- Audio + I/O interface using Portcast on host camera IP
- No extra DHCP lease - shares the camera's address
- PoE-powered two-way audio with multiple codec support
$199.00 $192.99 Save $6.01 -
Bosch
SKU: D8129
Bosch D8129 Octo-Relay Module
8-relay module for Bosch security panels with DIN rail mounting
- D8129 octo-relay module with 8 relays for signal switching
- UL listed for Bosch security system integration
- Compatible with B3512/B4512/B5512/B6512/B8512G/B9512G
$165.00 $164.99 Save $0.01
Relays & I/O Interfaces
Relays and I/O interfaces enable integration between surveillance, access control, and external systems. These components support automation, alarm triggers, door control, and system expansion within commercial security deployments.
Plan Your Deployment
- Input and output channel requirements
- Voltage and load compatibility
- Integration with cameras, NVRs, or control panels
- Automation and trigger event planning
- Expansion capacity for future system growth
Relays & I/O Interfaces — Engineering-Grade Installation Accessories for Commercial Deployments
This category covers 38 working models of relays & i/o interfaces sourced manufacturer-direct or through channel-direct US distribution. Build the rest of your system around the architectural choices below — compatibility, environmental rating, and lifecycle decisions made here propagate through every downstream component you specify.
What to Look For
Compatibility comes first. Mounting brackets, housings, and adapters are specific to the camera or device they support — the same manufacturer often makes parallel lines that don't share accessories. Verify the part number against the camera/device datasheet or compatibility list before ordering. Installation labor consumed troubleshooting a mismatched mount is the most common rework on commercial jobs.
Environmental rating determines material and finish. Indoor accessories typically use steel or aluminum with a powder-coat finish; outdoor accessories need stainless steel or specifically-rated coastal-grade finishes for salt-air resistance. UV exposure degrades plastic over years; choose UV-stabilized polymers or metal for sun-exposed installs. Plan for replacement at year 7-10 on outdoor plastic accessories.
Mounting load capacity must exceed device weight by a healthy margin. Camera weight, housing weight, and any wind loading on PTZs combine. Wall, ceiling, and pole mounts each have rated maximum loads — check before specifying. Pole-mount and pendant-mount installations need conduit, junction boxes, and weather-sealing that aren't always specified in the camera kit.
Wire management and accessibility for service get overlooked in early planning. Bottom-loaded cable entry in housings, swing-out mounting plates, and accessible junction boxes save hours when a camera needs service. Cheap mounts that require complete dismount to access cables drive labor cost up at every service call. Specify service-friendly mounting hardware on installs you expect to service for 10+ years.
Key Specs in This Category
| Spec | Available Options |
|---|---|
| IP Rating | IP66 |
| Power | 24VDC, AC/DC, PoE+, PoE, 12VDC, 24VAC, 48VDC |
| Channels | 128 |
| Type | Relay Module, Power Supply, Network Sound Projector, I/O Box |
Top Brands in This Category
Frequently Asked Questions
Will this mount work with my camera?
Mounts are camera-specific in most cases. The product description and manufacturer's compatibility list are the authoritative source. If you're not certain, send the camera model and the mount part number to our Senior Specialists; we'll confirm compatibility before you order. Returning a mismatched mount after installation labor is significantly more expensive than checking up front.
Do I need a junction box?
For most outdoor and exposed-conduit camera installs, yes — junction boxes house cable terminations and protect splices from weather. The camera's mounting requirements often specify the junction-box size and material. Some camera-and-mount combinations integrate the junction box into the mount; others require a separate box. Confirm before ordering to avoid pulling cable into an installation that can't accept it.
What's the difference between a wall mount and a pendant mount?
Wall mounts attach to vertical surfaces and project the camera outward. Pendant mounts attach to ceilings or overhead structures and suspend the camera below. Pole mounts are a specialized wall mount for poles. Choose by the mounting surface available and the field-of-view orientation required; many cameras work in any mount with the right adapter.
Are stainless steel mounts worth the extra cost?
For outdoor coastal installs (within ~5 miles of saltwater), yes — galvanized steel rusts visibly within 2-3 years in coastal air. For inland outdoor, marine-grade is overkill; powder-coated galvanized lasts 10+ years. For corrosive industrial environments (chemical plants, wastewater), stainless steel or specifically-rated coatings extend service life dramatically. Match the material to the environment, not the budget pressure.
Can I use one brand's mount with another brand's camera?
Sometimes — many mounts accept standard mounting patterns (¼-20 thread, M6 pattern, VESA spacing) and cross brands. Manufacturer-specific cast housings rarely do. Check the mount's hole pattern and weight rating against the camera's specs. When in doubt, use the camera manufacturer's recommended mount; cross-brand savings on mounts are typically small and the warranty implications of mismatched hardware aren't worth the risk.
Need help choosing? Talk to a Senior Specialist — direct line 877-277-7147 or request a quote.