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The SDC Security Door Controls 706NU is a narrow-format key switch designed for access control and door hardware applications. It operates in a momentary action mode with a double-pole double-throw (DPDT) configuration, rated at 6 amps. The 630 finish designation indicates a satin stainless steel appearance, common in commercial door hardware specifications. Licensed security, low-voltage, and door hardware installers typically source this switch for integration into access control panels, door release circuits, and similar electrified hardware systems.
The 706NU fits narrow stile door frames and enclosures where standard-width key switches will not fit. It is commonly used in commercial and light industrial environments where a keyed operator input is required to trigger a momentary electrical signal. Typical applications include electric strike release circuits, gate control panels, and access control keypads that require a physical key override or activation point.
Designed as an OEM-style narrow key switch for commercial access control and electrified door hardware systems requiring a momentary DPDT switching input.
Installation is typically performed by a licensed low-voltage technician or certified door hardware installer familiar with access control wiring practices. Disconnect and de-energize all circuits before mounting or wiring the switch. Follow NEC guidelines for low-voltage wiring, and verify that the connected load does not exceed the 6 amp contact rating. Confirm key cylinder compatibility and proper mounting depth before finalizing installation in the door stile or enclosure.
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