The Alpha Communications® PK407A specialty relays are used for a variety of reasons. The PK407A can be connected to a standard 12VAC or 16VAC electric door opener output from many intercom amplifiers to allow connection to a magnetic or different type or voltage door opener.
Easily Installs Right on Finished Wall Surface
Operates on Safe Low-Voltage Class II Wiring
Provides a 'Form C' Type Relay Output
Convenient Barrier Type Screw Terminal Connections