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3. Technical data
Enclosure material
Rated voltage
Switching capacity
Hysteresis/ Differential
Terminal size
Protection
Admissible ambient temperature
4. Requirements to be met by limiter
4.1 Reset with tool only
As called for by IEC/EN 60079-30-1, the limiter can be reset only with the help of a tool. Because
the thermostat lid is screwed to the main enclosure, the reset button can be accessed only by
opening the cover with a tool.
4.2 Manual reset
The safety temperature limiter is equipped with a manual reset. Automatic resetting is not
possible. The safety temperature limiter must be reset by hand with the manual reset button after
the lockout condition has been rectified.
4.3 Reset under normal operating conditions only
Resetting is possible only after the normal operating temperature has been reached. Only when
the temperature has dropped about 10% below the limiter setpoint the limiter can be reset.
Glass filled polyester
Max 400 VAC
Maximum 16A at 400 Vac, resistive load
Controller <= 2.5%, calibrated downwards
Limiter <= 7.5% calibrated upwards
4 mm
2
EN 60529 - IP 65, pollution level 2
–40°C to +70°C
5
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