Function temperature range: UT 72 (for universal purposes): –30 - +30 °C. UT 73 (for frost protection): –0 - +40 °C. Ambient temperature: –30 - +55 °C. Reset: Automatic. Differential: Fixed, 2.3 K. Switch system: Changeover (SPDT) switch. Contact load: AC 1: 10 A, 250/380 V (ohmic), AC 11: 2.5 A, 250/380 V (induct.). Sensor (versions for wall mounting): IP 20 to EN 60529/IEC 529 (versions for panel mounting): IP 00 to EN 60529/IEC 529.
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