Relay Modules
Showing Results for Relay Modules
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Axis
SKU: 01962-001
Axis TA8501 Physical Tampering Switch - 01962-001
Dedicated mechanical switch for tamper detection without false alerts
- Mechanical switch design eliminates accelerometer false positives on door stations
- Compatible with AXIS A8105-E door station and AXIS A9801 security relay
- Tool-free installation for commercial entry points and access control systems
$16.00 $15.99 Save $0.01The item has been added -
DMP
SKU: 861
DMP 861 Power Distribution/4 Wire Bus Module
Centralized power & 4-wire bus module for multi-keypad access systems
- 4-wire bus connectivity synchronizes multiple keypads and readers from one module.
- Centralized 12V/24V DC power distribution eliminates distributed point-of-load supplies.
- Compact form factor mounts in existing DMP cabinets with no separate power supply needed.
$65.00 $33.99 Save $31.01The item has been added -
DMP
SKU: 865
DMP 865 Style W/X Notification Module
TCP/IP notification module for DMP control panel auxiliary expansion
- TCP/IP integration eliminates dedicated serial runs in DMP control panel networks.
- Monitors opens, shorts, and ground faults on notification circuits in real time.
- Operates at 9.6–14.2 VDC, compatible with panel-mounted or remote 24VDC supplies.
$10.99The item has been added -
Add to Cart The item has been addedDMP
SKU: 866
DMP 866 Notification Module
12VDC auxiliary notification module for DMP access control expansion
- Runs on 12VDC, integrating directly into existing access control cabinet power supplies.
- Auxiliary architecture adds notification endpoints without disrupting active panel configs.
- Scales multi-door and multi-reader deployments without replacing core control infrastructure.
$112.00 $55.99 Save $56.01The item has been added -
DMP
SKU: 867
DMP 867 LX-Bus Addressable Notification Module
LX-Bus addressable notification module for networked multi-site control
- Style W supervised circuit supports 12VDC or 24VDC notification loads on one module.
- Built-in ground fault, open, and short detection with four status LEDs prevents silent failures.
- LX-Bus TCP/IP backbone enables centralized notification control across distributed multi-site deployments.
$193.00 $98.99 Save $94.01The item has been added -
DMP
SKU: 869
DMP 869 Style D Initiating Module
25VDC initiating module expands DMP security system zones
- Two independent supervised 4-wire initiating circuits expand DMP panel zone capacity.
- 8–25 VDC operating range integrates directly with standard DMP power distribution.
- Continuous ground-fault supervision detects wiring opens, shorts, and faults pre-alarm.
$122.00 $61.99 Save $60.01The item has been added -
DMP
SKU: 893A
DMP 893A Dual Phone Line Module Keypad
Dual phone line keypad module for DMP access control expansion
- Monitors main and backup phone lines for voltage drops, alerting local keypads and central station.
- UL 864 listed and FCC Part 15/68 compliant, meeting fire signaling and telecom regulatory requirements.
- Installs into DMP panel enclosure at 12VDC via wire harness, fitting existing auxiliary expansion slots.
$169.00 $150.99 Save $18.01The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-9244
ELK Products ELK-9244 Sensitive Relay DPDT 12/24 VDC
DPDT sensitive relay, 12/24 VDC jumper-selectable for mixed-voltage systems
- DPDT relay switches two independent circuits from one coil signal
- 12 or 24 VDC coil voltage matches standard ELK panel power buses
- Drops into ELK panel for compound door, strike, and aux switching
$126.00 $65.99 Save $60.01The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-M1XOVR
ELK Products ELK-M1XOVR 16 Output Expander Module
16-output M1 expander with mixed relay and voltage switching
- 16-output expander - 8 voltage outputs plus 8 high-capacity relays
- Drives motors, solenoids, and heavy-duty lighting circuits
- Drops onto ELK M1 expansion bus for industrial output control
$163.99The item has been added
Relay Modules
Relay modules expand the output capability of intrusion, access, and fire panels, providing switched contacts for auxiliary devices such as horn strobes, door holders, HVAC interlocks, and third-party signaling. They are a standard building block in any system with more outputs than the main panel provides natively.
Plan Your Deployment
- Number of relays per module and contact form (SPDT, DPDT)
- Contact rating (resistive and inductive) for the load
- Trigger voltage and isolation for the control panel
- Mounting: PCB, DIN rail, or enclosure-ready
- Manual bypass switch and LED indicator requirements
What to Look For
Undersizing relay contacts for inductive loads (solenoids, motor contactors) is a common cause of premature failure; derate the contact rating by 30-50% for inductive loads. Surge suppression diodes or MOVs across coil-driven loads protect both the relay and the control panel output.
Common Deployment Scenarios
Relay modules are used to drive door holders, activate elevator recall for access control, switch HVAC during after-hours intrusion events, and provide form-C contacts for interface to third-party systems. They mount inside a common access or intrusion enclosure alongside the panel.