The LOCK RELEASE 300N-512-S CTC is an energy-saving, flush-mounted electric door lock release designed for secure premises such as banks, laboratories, and jewelry stores. Operating on reverse 12VDC with inverted operation, it features a reliable gold contact microswitch that indicates door status without a manual release lever or adjustable latch. Its non-symmetrical body and DIN standard compatibility allow easy adaptation for right or left hand doors. The flush-fit design with a grey metallic S type trim ensures a sleek finish for access doors. Ideal for integration into security and alarm systems.