Apollo Series 65A 6″ E-Z Fit Base (Part No. 45681-251USA)

The Apollo Series 65A 6″ E-Z Fit Base (45681-251USA) 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 45681-251USA combines dependable relay operation with Apollo’s E-Z Fit design, helping installers complete mounting and wiring tasks quickly and efficiently. The one-way fitting mechanism ensures correct detector orientation during installation, while the detector locking feature helps prevent unauthorised removal.

In addition, the base includes easy-access wiring terminals and an integrated ground wire terminal, supporting fast installation and reliable long-term performance.

Key Features

• 6″ E-Z Fit relay base
• Designed for 4-wire fire detection systems
• Single set of volt-free changeover contacts
• Relay changes state when the detector enters alarm
• E-Z Fit installation design
• Detector locking mechanism
• One-way detector fit
• Easy wiring connections
• Ground wire terminal included
• Compatible with Apollo Series 65A detectors

Typical Applications

The Apollo 45681-251USA 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