Alpha PK407A Magnetic Door Opener Features
The PK407A from Alpha is a magnetic door opener / MGR call relay. The Alpha 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. It can also be used to provide a ‘Form C’ relay contact from virtually any 12VAC-16VAC input source. The PK407A can even be powered directly from a 12VAC or 16VAC transformer. As long as a 12VAC to 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.
Features
- Easily Installs Right on Finished Wall Surface: Quick and simple installation saves time and effort.
- Operates on Safe Low-Voltage Class II Wiring: Ensures safety and compliance with electrical standards.
- Provides a ‘Form C’ Type Relay Output: Versatile output configuration supports various applications.
- Convenient Barrier Type Screw Terminal Connections: Facilitates easy and secure wiring connections.
Alpha PK407A Detailed Specifications
| Input Voltage | 12VAC or 16VAC |
| Output Type | Form C Relay Contact |
| Wiring Class | Low-Voltage Class II |
| Installation Method | Surface Mount |
| Relay Contacts | Normally-Open and Normally-Closed |
| Common Terminal | Shared Screw Terminal |



















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