![]() Amplifiers/Power Supplies/Accessories Used with many entry intercom and video-intercom systems, when a different voltage door opener or magnetic lock opener is used instead of a 16VAC door opener. The Alpha Communications® PK407A specialty relays are used for a variety of reasons. The PK407A can be connected to a standard 16VAC electric door opener output from many intercom amplifiers to allow connection to a magnetic or different type or voltage door opener. It can also be used to provide a 'Form C' relay contact from virtually any 16VAC input source. The PK407A can even be powered directly from a 16VAC transformer. As long as a 16VAC source is present, the PK407A will engage, providing a normally-open and a normally-closed set of contacts, with a shared 'common' screw terminal. The PK407A relays are designed to easily surface mount right onto the finished wall by means of self-stick mounting tabs or by using the mounting holes provided for screw mounting. Connections are positive screw terminal type, using a barrier type terminal connector strip. |
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FEATURES 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 |
| SPECIFICATIONS |
Dimensions: Height: 2.50" (64mm) Width: 2.50" (64mm) Depth: 0.75" (20mm) from mounting surface |