Overview
ELK Products Relay Module Spdt 12 Vdc 912B 912B6
ELK Products ELK-912B6 SPDT Relay Module Overview The ELK Products ELK-912B6 is a single-pole double-throw (SPDT) relay module designed for 12 VDC ap…
ELK Products Relay Module Spdt 12 Vdc 912B 912B6
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Bundle Summary
Overview
ELK Products ELK-912B6 SPDT Relay Module
Overview
The ELK Products ELK-912B6 is a single-pole double-throw (SPDT) relay module designed for 12 VDC applications in security and access control systems. This relay module provides reliable electromechanical switching for door strikes, magnetic locks, and peripheral device control in integrated security environments. The ELK-912B6 delivers consistent switching performance and integrates seamlessly into ELK Products control panels and modular security architectures.
Key Features
- SPDT Configuration: Single-pole double-throw contact arrangement enables switching between normally open and normally closed circuits
- 12 VDC Operating Voltage: Designed for standard 12-volt direct current power in access control and alarm systems
- Reliable Electromechanical Switching: Proven relay technology for consistent performance in door access, lock control, and auxiliary device activation
- Modular Design: Compatible with ELK Products control panels and security system architectures
- Industrial-Grade Construction: Built for integration into professional security installations and repeatable deployment scenarios
- Compact Form Factor: Space-efficient module design supports integrated panel layouts and distributed control applications
Integration & Compatibility
The ELK-912B6 relay module integrates with ELK Products control systems and security platforms that require auxiliary switching capabilities. Installers commonly deploy this relay for door strike control, magnetic lock activation, gate operators, and peripheral device management. The module's SPDT configuration provides flexibility in normally open (NO) and normally closed (NC) circuit logic, supporting both fail-safe and fail-secure door access configurations.
The 12 VDC requirement aligns with standard security system power supplies, simplifying integration into existing panel designs and reducing the need for dedicated voltage conversion. Security integrators regularly specify the ELK-912B6 for modular access control expansion, allowing phased system growth without replacing core control infrastructure.
Technical Specifications
Operating voltage is 12 VDC, with SPDT contact configuration for dual-state switching applications. The module is engineered for door access control, locking device management, and auxiliary security function activation. The compact design accommodates standard DIN rail mounting and fits within modular security panel assemblies.

From a systems integration perspective, the ELK Products ELK-912B6 addresses a fundamental requirement in modular access control: reliable auxiliary switching without panel redesign. During design phases for multi-door installations, specifying dedicated relay modules significantly simplifies commissioning and troubleshooting compared to relying on limited built-in relay capacity.
Technical Highlights:
- SPDT Logic: True single-pole double-throw configuration allows both normally open and normally closed operation, reducing the need for dual module installations in mixed-circuit designs
- 12 VDC Standard: Operates directly from security panel auxiliary power supplies, eliminating external voltage regulators in most installations
Deployment Considerations:
- Verify panel power supply capacity before adding multiple relay modules; each unit draws current during activation cycles
- SPDT configuration means careful load assignment — test normally open vs. normally closed circuit behavior during commissioning to confirm fail-safe/fail-secure intent
The ELK-912B6 is a straightforward, proven solution for access control installations that need to extend switching capability beyond built-in panel relays. For multi-door systems or facilities with complex auxiliary device logic, this module provides cost-effective expansion without introducing external relay banks.
System Design, Deployment & Technical Support
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price
System Design Assistance
- Get help validating product compatibility
- Coverage requirements
- Storage planning and deployment architecture before you buy.
Deployment & Configuration Support
- Access fixed-scope support for rollout planning
- User setup guidance
- Migration and system standardization across single-site or multi-site deployments
Guides, Tools & Calculators
- PoE requirements
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