Bosch FNX-425U-WFWH combination bell and light

FNX-425U-WFWH Bell Unifier

The FNX-425U-WFWH combined alarm and indicator light is an intelligent fire alarm device designed for use in fire alarm systems. This device combines an alarm bell and indicator light, providing both audible and visual notifications to alert users of a fire emergency. It is an essential component of fire warning systems, ensuring that people can quickly recognize and respond to emergency situations.

Key Features

• Effective alarming: EN 54-3 and EN 54-23 certified

• Uninterruptible alarm signaling, even in LSN stub

• Easy and cost efficient installation and replacement

• Up to 84 elements per loop, up to 127 if operated without detector

• For combination with any detector of AVENAR detector 4000 series

Specifications

• Battery type Lithium
• Color: White
• IP rating IP41; IP21C
• Material Plastic (ABS)
• Maximum sound pressure level at a distance of 1 m (dBA): 97 dBA
• Operating temperature (°C): -10 – 55 °C
• Storage temperature (°C): -30 – 75 °C
• Typical battery life (years): 10
• Weight (g): 473 g