Sdc 706NULT Key Switch Momentary Dpdt 630 Finish

Product Description

The SDC - SECURITY DOOR CONTROLS 706NULT is a momentary-action key switch wired in a double-pole double-throw (DPDT) configuration with a 630 satin stainless finish. Key switches of this type provide a secure, keyed input signal to access control systems, door holders, electromagnetic locks, and other low-voltage security hardware. The momentary action means the circuit is activated only while the key is held in the operated position and returns to its normal state upon release. The DPDT output gives the installer two independently switched circuits from a single key operation, supporting more complex wiring topologies. Installation is typically performed by licensed electricians or access control technicians.

This key switch is suited for use in commercial and light industrial access control applications where a physical key is required to trigger or override a door release, alarm input, or security device. Typical installation scenarios include building entry points, secure server room doors, stairwell access, and elevator control panels. The 630 satin stainless finish is commonly specified for stainless steel door hardware schedules and high-traffic environments where appearance and corrosion resistance matter.

Key Features

• Momentary-action operation — circuit closes only while key is held, returns to normal on release
• DPDT switching configuration provides two independently controlled circuit paths
• 630 satin stainless finish suits stainless steel door hardware schedules
• Keyed input prevents unauthorized activation of connected security or access control devices
• Single-unit packaging for straightforward replacement or new installation

Compatibility

Designed as an OEM-style replacement or new-installation key switch for commercial access control, electromagnetic lock, and door control systems requiring a momentary DPDT keyed input device.

Installation Notes

Installation should be performed by a licensed electrician or qualified access control technician in accordance with applicable NEC requirements. Power down and de-energize all connected access control or locking hardware before wiring or replacing the switch. Verify that the DPDT circuit connections match the control panel or lock controller wiring diagram before restoring power. Do not apply voltage exceeding the rated limits of the connected control system.