Capillary thermostat JUMO - exTHERM-AT

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The capillary thermostat exTHERM-AT is designed for temperature sensing directly on the pipeline or on the surface of the heating cable, especially for installation in areas with the risk of explosion of flammable gases, vapours, dust and explosives.
The thermostats are available in TW variants - temperature sensor, STW - safety temperature sensor and STB - limiter. The latter option is widely used for the control of heating circuits with resistance and mineral insulated cables, where they are used for gradation of the maximum permissible surface temperatures of the heating cables. For common applications such as maintaining the process temperature, we use the TW variant for self-regulating heating cables. An exceptional feature is a switching capacity of up to 25A, including the direct connection of the heating cable to the thermostat.

Technical parameters:

The capillary and sensor are made of stainless steel
Switchover contact
Dimensions (w x h x d): 122 x 120 x 90 mm
Explosion protection: II 2G Ex e IIC T4/T5/T6 Gb
II 2D Ex td IIIC T85°C/T100°C/T130°C Db

Ingress protection: IP 65
Connection gland 1xM25; 1xM20

Operating conditions:
Use in hazardous areas according to EN 60079-14

Specifications		Capillary
Regulation range	-20 up to +50 °C		0 up to 190 °C	20 up to 500 °C
Capillary resistance	do 120 °C		do 220 °C	do 550 °C
Capillary length	1m			2m
Hysteresis	2,5 %
Switching capacity on the N/C contact (1 - 2)	AC 400V + 10%, 16A AC 230 V + 10%, 16 (2,5)A, cos φ = 1 (0,6)^AC 230 V + 10 %, 25 (4) A, cos φ = 1 (0,6) DC 230 V + 10 %, 025 A
Ambient temperature	- 40 °C (- 55 °C) up to + 40 °C

* Standard variant

Certification: EPS 11ATEX 1354
Order code: exTHERM-AT XX
XX substitute for desired regulation range
Example: Regulation range 0-190°C = exTHERM-AT 0 °C ... + 190 °C