Apollo Series 65A 4″ Standard Relay Base (Part No. 45681-255USA)

The Apollo Series 65A 4″ Standard Relay Base (45681-255USA) provides a reliable interface between an Apollo Series 65A detector and ancillary equipment. The base incorporates a single set of volt-free changeover contacts that automatically change state when the connected detector enters an alarm condition, allowing it to control external devices such as remote indicators, door release systems, plant shutdown equipment, or other interfaced systems.

Designed for use in 4-wire fire detection systems, the 45681-255USA combines straightforward installation with dependable relay operation. Its one-way detector fitting helps ensure correct installation, while the detector locking mechanism helps prevent unauthorised removal.

In addition, the base includes a ground wire terminal and easy-to-access wiring connections, helping installers achieve fast and efficient installation.

Key Features

• 4-wire relay base
• Single set of volt-free changeover contacts
• Relay changes state when the detector enters alarm
• Detector locking mechanism
• One-way detector fit
• Easy wiring connections
• Ground wire terminal included
• Compatible with Apollo Series 65A detectors
• Suitable for fire alarm and ancillary equipment interfacing

Typical Applications

The Apollo 45681-255USA is suitable for:

• Conventional fire alarm systems
• Remote alarm indication
• Door release systems
• Plant shutdown interfaces
• Building management system integration
• Commercial buildings
• Educational facilities
• Healthcare environments
• Industrial premises