Bosch FAH-425-T-R Series Addressable Analog Heat Detector (FAH-425-T-R + MS 400 B)

Description

The Bosch FAH-425-T-R Series Addressable Analog thermal fire detector represents the absolute highest standard of European safety engineering. Engineered by Bosch in Germany and manufactured to absolute precision in Portugal, the Bosch FAH-425-T-R delivers uncompromising life-safety protection.

The heavy-duty design of the Bosch FAH-425-T-R makes it perfect for environments containing high ambient dust, cooking vapors, or intense structural steam. By pairing the responsive thermal core with the included authentic MS 400 B base, the Bosch FAH-425-T-R establishes a rock-solid safety foundation.

Technical Specifications Table

Intelligent Resistor Signal Processing & Multi-Class Thermal Programming Savings

The core electronic advantage of integrating the comprehensive Bosch FAH-425-T-R interactive heat detector is its advanced internal thermistor assembly. The optimized internal processor of the Bosch FAH-425-T-R checks a precision resistor grid at strict, rapid intervals. This allows the Bosch FAH-425-T-R to identify swift temperature spikes before open flames compromise your commercial structure parameters. The Bosch FAH-425-T-R operates perfectly as a thermal maximum detector, triggering instantly when rooms pass a fixed limit of 54°C or 69°C.

All evaluation metrics gathered by the Bosch FAH-425-T-R core are continuously processed by Intelligent Signal Processing logic filters. The external shell features a dust-repellent labyrinth cap, making the Bosch FAH-425-T-R exceptionally sturdy over years of service. Installers can leverage the three bottom rotary switches of the Bosch FAH-425-T-R to select manual network codes from 1 to 254. The companion MS 400 B base provides accessible screw terminals that comfortably accept field wire gauge runs up to 2.5 mm².

To verify compliance profiles and secure reference validation, browse technical parameters on the main Bosch Security and Safety Systems Hub.

Frequently Asked Questions (FAQ)

Q1: What types of thermal detection methods can be programmed into the Bosch FAH-425-T-R?
A: The panel software allows the detector to be configured for thermal maximum operation (tripping at 54°C or 69°C) or thermal differential operation to sense rapid speed of temperature increase.

Q2: Why is this thermal unit well-suited for industrial kitchens or boiler utility spaces?
A: Because it relies purely on a thermistor network rather than light-scattering optical chambers, it does not trigger false alarms from dense cooking vapors, moisture steam, or non-hazardous smoke dust.

Q3: What does the bright red loop ring color encoding on the detector body signify?
A: The red concentric ring is a standardized color code that tells safety maintenance teams at a glance that the device is a thermal heat detector during regional testing intervals.

Q4: How do installers set the specific device loop address on the Bosch FAH-425-T-R?
A: The device has three integrated rotary switches on its base. Technicians can manually select a hardware address code between 1 and 254, or keep them at 000 for automatic panel configuration.

Q5: Can the Bosch FAH-425-T-R heat detector be connected to older, classic LSN fire panels?
A: Yes. While designed for LSN improved networks up to 254 elements, it features backwards compatibility to legacy classic LSN panel lines by setting the rotary switch positioning to the “CL” operating modes.

Q6: What are the exact structural boundary limits for mounting this specific heat unit?
A: Under standard compliance rules, a single unit secures a maximum local monitoring area up to 40 m² and can be installed at a ceiling height limit up to 7.5 meters maximum.

Q7: What benefits does the included MS 400 B base bring to field installation?
A: The MS 400 B is an official Bosch-branded base that handles surface and flux conduit wire entry, featuring easily accessible terminal connections that take up to 2.5 mm² wire line cross-sections.