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.
Showing Results for Relay Modules
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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 for synchronized keypad and reader expansion
- Wired auxiliary module handling distributed power management across readers
- Multi-reader expansion architecture for coordinated access control deployment
Special Order · Ships in 2-3 weeks$65.00 $34.99 Save $30.01The item has been added -
DMP
SKU: 865
DMP 865 Style W/X Notification Module
TCP/IP notification module for DMP control panel auxiliary expansion
- 24VDC powered auxiliary expansion integrates via TCP/IP network communication
- Style W/X variant supports flexible deployment across DMP system architectures
- Extends notification and auxiliary functions within compatible control panel environments
Special Order · Ships in 2-3 weeks$11.99The 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
- Expands notification and signaling across multi-door deployments without replacing core infrastructure
- Integrates into existing DMP systems with minimal downtime and standard 12VDC power supply
- Designed as auxiliary expansion unit to scale facilities and add zones alongside active panels
In stock · Ships same business day$112.00 $57.99 Save $54.01The item has been added -
DMP
SKU: 867
DMP 867 LX-Bus Addressable Notification Module
LX-Bus addressable notification module for networked multi-site control
- TCP/IP communication integrates with DMP LX-Bus compatible control systems
- 24VDC powered auxiliary module for distributed notification device management
- Expands system capability across networked security architectures and installations
Special Order · Ships in 2-3 weeks$193.00 $101.99 Save $91.01The item has been added -
DMP
SKU: 869
DMP 869 Style D Initiating Module
25VDC initiating module expands DMP security system zones
- Multi-zone capacity expansion for existing DMP panel architectures
- 25VDC operation integrates sensor and device initiation points
- Modular auxiliary expander design supports distributed installations
Special Order · Ships in 2-3 weeks$122.00 $63.99 Save $58.01The item has been added -
DMP
SKU: 893A
DMP 893A Dual Phone Line Module Keypad
Dual phone line keypad module for DMP access control expansion
- PIN entry reader integrates into DMP control panels via expansion slot
- Operates on 12VDC auxiliary power for multi-credential verification
- Supports redundant communication pathways in multi-reader deployments
Special Order · Ships in 2-3 weeks$169.00 $89.99 Save $79.01The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-91212
ELK Products ELK-91212 SPDT Relay Module 12VDC
12VDC SPDT relay module for door strike and magnetic lock control
- SPDT configuration supports both fail-safe and fail-secure door modes
- 12VDC operation integrates with ELK control panels and access systems
- One module per door opening scales to multi-door installations
In stock · Ships same business day$76.99The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-912B6
ELK Products ELK-912B6 SPDT Relay Module 12VDC
12VDC SPDT relay module for access control and alarm routing
- Single-pole double-throw configuration switches signals between two circuit paths
- 12VDC rated for standard security control cabinets and panel enclosures
- Compact module design fits control cabinet mounting without excessive space
In stock · Ships same business day$64.99The 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
- Two independent switching circuits from single coil reduces wiring and panel space
- Jumper-selectable 12 or 24 VDC operation eliminates need for multiple SKUs
- Low-coil-resistance design minimizes current draw on alarm panel outputs
In stock · Ships same business day$99.99The 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
- 8 individually addressable relays handle high-capacity loads like motors and solenoids
- 8 voltage outputs for low-voltage devices—locks, LEDs, access readers—in one module
- Direct M1 expansion bus connection with automatic firmware recognition, no extra wiring
In stock · Ships same business day$167.99The item has been added