A mechanical thermostat for cabinets and enclosures, used to control heaters, coolers, filter fans or signalling devices. It senses the surrounding air and switches inductive or resistive loads through a snap-action contact. Clips onto a 35 mm DIN rail.
How it works
- The temperature set on the dial is the upper switch point: the normally closed (NC) contact opens.
- The set temperature minus the switching difference (and tolerances) is the lower switch point: the NC contact closes.
Specifications
| Switching difference | 4K (± 1.5K tolerance) |
|---|---|
| Sensor element | Thermostatic bimetal |
| Contact type | Change-over snap-action contact |
| Contact resistance | < 10 mΩ |
| Service life | > 100 000 cycles |
| Max. switching capacity, NC | 250 VAC, 10 (4) A; DC 30 W |
| Max. switching capacity, NO | 250 VAC, 5 (2) A; DC 30 W |
| EMC | EN 55014-1-2, EN 61000-3-2, EN 61000-3-3 |
| Connection | 4-pole terminal, clamping torque 0.5 Nm max.; rigid wire 2.5 mm², stranded wire (with ferrule) 1.5 mm² |
| Mounting | Clip for 35 mm DIN rail, EN50022 |
| Casing | Plastic to UL94 V-0, light grey |
| Dimensions | 67 × 50 × 38 mm |
| Weight | Approx. 0.10 kg |
| Fitting position | Any |
| Operating temperature | 20 to +80°C (-4 to +176°F) |
| Storage temperature | -45 to +80°C (-49 to +176°F) |
| Protection | IP20 |