7-1618007-1 is a vacuum relay manufactured by TE Connectivity with a single-pole, single-throw normally closed (SPST-NC) contact configuration, designed for reliable switching applications. Vacuum relays utilize a sealed vacuum chamber to eliminate arcing and contact erosion, providing superior performance and extended operational life compared to conventional electromagnetic relays. This design enables the relay to handle high switching frequencies and maintain consistent performance across demanding industrial and electronic applications. The SPST-NC configuration makes it suitable for applications requiring normally closed contacts that open upon energization, commonly used in safety circuits, power distribution systems, and precision control applications where reliability and long service life are critical.