Reliance - Single High Limit Cut-off Thermostat With Pocket (82°C) STAT500030 Designed to be fitted to the hot water cylinder and in the event of a failure the thermostat will cut off due to the high limit cut off thermostat, which is set to a pre-determined temperature. Combined Control and High Limit thermostats High Limit temperature: 82°C Temperature tolerance: +/-5% Degree of protection: IP 40 Insulation class: 1 Maximum pocket pressure: 10 bar CE Marked Approval