New: Electronic hygrotherm - Available to order from 08/2025
ETF 012
The electronic hygrotherm simultaneously monitors temperature and air humidity in enclosures and cabinets. Condensation is avoided by switching the heating and fans as required.
- Adjustable temperature and air humidity
- Wide-range voltage
- Standard DIN width (35mm)
- Push-in terminal
- High switching capacity
- Operating temperature down to -40 °C
- Optical status display
Overview technical data
| Device type | Hygrostat |
| Setting range | 0 °C - 60 °C |
| Contact type | Relay |
| Protection type | IP20 |
| Operating display | LED |
| Casing | Plastic to UL94 V-0, light grey |
| AC/DC | AC |
| Operating voltage | 24 V - 240 V |
| Operating voltage tolerance | 22 V - 265 V |
| Inrush current maximum | 30 A |
| Inrush current duration | 10 s |
| Frequency | 45-65 Hz |
| Power consumption | 1 W |
| Switching current ohmic | 16 A |
| Reference voltage ohmic maximum | 240 VAC |
| Reference voltage 2 ohmic maximum | 120 VAC |
| Switching current inductive | 1.6 A |
| Reference voltage inductive maximum | 240 VAC |
| Reference voltage 2 maximum | 120 VAC |
| Switching current dc ohmic | 0.6 A |
| Reference voltage dc ohmic maximum | 60 VDC |
| Reaction time | 3 s |
| Service life | VDE: NO/NC >15000 cycles UL: NO/NC >30000 cycles |
| setting_range_2 | 50 % RH - 90 % RH |
| Switching differential | 2 K |
| Switching differential tolerance | ± 1 K |
| Switching differential 2 | 4 % RH |
| Switching differential 2 tolerance | ± 1 % RH |
| Operating temperature | -40 °C - 70 °C |
| Operating humidity | ≤95 % RH |
| Storage humidity | ≤95 % RH |
| Storage temperature | -45 °C - 85 °C |
| Connection | 5-pole clamp, torque 0.5 Nm max.: Rigid wire/stranded wire with 2.5 mm² wire end ferrule (AWG 14) |
| Design | Changer |
| Width | 35 mm |
| Depth | 69.5 mm |
| Weight | 200 g |
| Note | Switching resistive load (switching inductive load). Wire end ferrules must be used for connections with stranded wires. |
Heating
Cooling
Regulating
Lighting
