Versions

Temperature Controller / Limiter

Ex-TC

Name: Ex-TC
Availability: InStock

in Hazardous Areas

The eltherm electronic temperature controller Ex-TC has a wide control range of 0 °C up to + 450 °C and an ambient temperature range of - 40 °C up to + 50 °C. It has been developed for use in hazardous areas. Typical applications are frost protection and temperature maintenance. For different applications we offer different versions for wall mounting or for mounting on pipelines. You can choose between a temperature controller with alarm relay, with RS 485 interface with Modbus protocol or a temperature controller and limiter combination with alarm relay. The device can switch high rated currents and its round shape ensures optimum mechanical safety. The quick closing lid with snap lock is easy to use. All versions are suitable for our self-regulating heating cables (ELSR), as well as resistance heating cables (ELK, ELP).

Technical Data

Applications

Freeze prevention

Industrial Applications

Temperature maintenance

Pipelines

Valves, pumps

Silos, vessels, tanks

Technical Benefits

Three functional options
No static charge
Rapid closing of cover through snap fit, easy to use
Optimum mechanical safety through round shape
Modular design, compatible with Ex-it-R Junction Box and pipe mounting stand
Easy setting and operation

Technical Data

Enclosure	Polyamid, No static charge
Alarm limiter	0 °C up to 450 °C, factory setting: 0 °C
Alarm controller	0 °C up to 450 °C, factory setting: 5 °C
Measuring range	- 99 °C up to 450 °C (T1)
Operating / control voltage	230 ±10 % V AC, 50/60 Hz
External fusing	25 A (20 A)
Ex-suitable
Weight	1300 g to 1650 g
Terminal size	0.2 - 4 mm²
Load relay	Single pole
Max. pipe temperature	200 °C (Pipe mounting models)
Nominal Current	max. 25 A (up to 40 °C), max. 20 A (up to 50 °C) T6 with power cable ≥ 2.5 mm²
Relay output common alarm	1 open contact 3 A, 250 VAC,100 VA or 5 A, 24 VDC, 100 W
Switching hysteresis	< 100 °C: 3 K, > 100 °C: 3 %
Switching point accuracy	< 2 K
IP rating	IP65
Limiter restart threshold	5 K below limiter threshold
Sensor connection controller / limiter	Ex-TC/A and Ex-TC/M: 1x intrinsically safe 3 wire connection with automatic length matching up to 20 Ω
Sensor connection controller / limiter	Ex-TC/AL: 2x intrinsically safe 3 wire connection with automatic length matching up to 20 Ω
Set point range	0 °C up to 450 °C (T1)
Impact resistance	min. 7 J
Temperature units	°C or °F (°F on request)
Ambient temperature	- 20 °C up to + 50 °C (Pipe mounting models), - 40 °C up to + 50 °C (Wall mounting models)

The eltherm designer

From now on, easily perform heat loss calculations for insulated and jacketed pipes and vessels yourself, or manage entire trace heating systems within your projects.

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