Belimo BAT72 Thermoelectric Tripping Device with Test Button

Thermoelectric tripping device for fire dampers in ventilation and air-conditioning systems

- Nominal voltage AC/DC 24 V
- Response temperature duct 72°C
- Duct probe length 65 mm
- Tested acc. to ISO 10294-4

Information on Thermoelectric Tripping Devices (Electronic Fusible Links)

- How it works: These devices combine an electrical switch with internal temperature sensors. They are placed inside or right outside air ventilation ducts.
- The Trip Mechanism: If the duct or ambient air temperature exceeds a pre-determined threshold (typically 72°C / 165°F), the device opens its electrical contacts. This immediately cuts power to a spring-return actuator, causing it to snap close.
- Industry Example: The Belimo BAT Thermoelectric Tripping Device is universally used across HVAC fire and smoke dampers.

Technical Data	BAT72
Nominal voltage	AC/DC 24 V
Nominal voltage frequency	50/60 Hz
Rated Current	1 A
AC/DC throughput resistance	<1 Ω
Connection supply	Cable 1 m, 2x 0.75 mm², Betaflam cable heatresistant up to 145°C
Probe length	65 mm
Response temperature thermal fuse	Duct inside temperature 72°C (colour black) Duct outside temperature 72°C
Protection class IEC/EN	III, Safety Extra-Low Voltage (SELV)
Degree of protection IEC/EN	IP54
EMC	CE according to 2014/30/EU
Low voltage directive	CE according to 2014/35/EU
Hygiene test	According to VDI 6022 Part 1
Rated impulse voltage supply	0.8 kV
Pollution degree	3
Ambient humidity	Max. 95% RH, non-condensing
Ambient temperature	-30...55°C [-22...131°F]
Storage temperature	-40...55°C [-40...131°F]