Sdc E61-10A-SPDT Emergency Bypass Switch

Product Description

The SDC - SECURITY DOOR CONTROLS E61-10A-SPDT is a single-pole double-throw emergency bypass switch designed for use in access control and door locking systems. It provides a manual override path for electrified locking hardware, allowing authorized personnel to bypass electronic control circuits during a power failure, alarm event, or maintenance scenario. The SPDT switching configuration gives installers flexibility to wire for normally open or normally closed fail-safe and fail-secure applications. This type of device is typically installed by licensed low-voltage or access control technicians as part of a code-compliant egress or security door assembly.

The E61-10A-SPDT fits into commercial and light-industrial access control installations where a dedicated hardware-level override is required alongside electronic locking devices such as electric strikes, magnetic locks, or electrified mortise hardware. It is suited for installations that must meet life-safety egress requirements, providing a reliable manual means to release or secure a door independent of the primary control panel. Facilities managers, security integrators, and low-voltage contractors are the primary installers of this component.

Key Features

• Single-pole double-throw (SPDT) switching supports both normally open and normally closed wiring configurations
• Functions as a manual emergency bypass for electronic door locking and access control circuits
• Sold as an individual unit for targeted replacement or new installation
• Classified as a lock accessory, compatible with electrified door hardware systems

Compatibility

Designed as an OEM-style lock accessory for use with electrified door hardware and access control systems requiring a manual SPDT emergency bypass switch.

Installation Notes

Installation should be performed by a qualified low-voltage or access control technician in accordance with applicable local codes and NFPA 70 (NEC) requirements. Disconnect and de-energize all related control circuits before wiring or servicing the switch. Verify the switching logic matches the fail-safe or fail-secure design intent of the door hardware before completing the installation. Do not energize the system until all connections have been inspected and confirmed correct.