The electronic hygrotherm ETF 012, part number 01231.9-01, monitors temperature and humidity in enclosures to prevent condensation by activating heating or fans. It features an external sensor with a 2 m cable and operates on AC 100 V to 240 V. The device mounts on a 35 mm DIN rail with dimensions of 77 mm height, 60 mm width, and 43 mm depth. The operating temperature range is from 32 °F to 140 °F, with a switching capacity of AC 240 V, 10 A for ohmic loads and 1.6 A for inductive loads. It includes an LED status display, plastic housing compliant with UL94 V-0, and a 5-pole clamp connection for 2.5 mm² (AWG 14) wires. The relay has a service life exceeding 30,000 cycles under UL standards.
The electronic hygrotherm simultaneously monitors temperature and air humidity in enclosures and cabinets. Condensation is avoided by switching the heating and fans as required. In the design with an external sensor, this can be placed anywhere in the enclosure, enabling precise measurement.
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| Product Category | Thermostats |
| Product Number | 01231.9-01 |
| Product Name | Electronic Hygrotherm With External Sensor ETF 012 |
| Thermostat Type | Mechanical |