Fermax Emergency Backup Module 18 Vdc for Door Entry Systems

Fermax F-1021 Emergency Backup Module 18 Vdc for Door Entry Systems

The Fermax F-1021 is an emergency backup module providing automatic battery switchover to maintain system operation during mains power failure. Designed for use with Fermax 18 Vdc power supplies such as Ref. 88301, it accepts any standard 12 V lead acid battery (not included). The module features green and red status LEDs to indicate normal and emergency operating modes respectively, plus a relay output contact (C/NC/NO) for mains fail detection signalling. Suitable for ADS, MDS and 4+N door entry systems. Can be wall mounted or fitted to a DIN rail.

Key Features

• Automatic switchover to battery on mains failure
• Green LED for normal operation, red LED for emergency mode
• Relay output contact (C/NC/NO) for mains fail status sensor
• Compatible with any 12 V lead acid battery
• Wall mount or DIN rail installation
• Designed for use with Ref. 88301 power supply (220 Vac input)

Technical Specifications

• Input voltage: 18 Vdc
• Output voltage: 18 Vdc
• Maximum output current: 3.5 A
• Relay output contact rating: 3.5 A max (C/NC/NO)
• Battery type: Any 12 V lead acid battery
• Operating temperature: 0 degrees C to 50 degrees C
• Certifications: CE