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Built for regulating enclosure climate, this combined temperature and humidity controller switches a heater or fan through one SPDT relay output. It operates on a 100 to 240 V AC supply. Best for condensation prevention and temperature control inside electrical and instrument enclosures.
Built for regulating enclosure climate, this combined temperature and humidity controller switches a heater or fan through one SPDT relay output. It operates on a 100 to 240 V AC supply. Best for condensation prevention and temperature control inside electrical and instrument enclosures.
The electronic hygrotherm senses the ambient temperature and relative humidity in an enclosure with electric/electronic components, and turns on a heater (or alternatively, a fan) at either set point, helping prevent the formation of condensation in the enclosure.
The LED integrated in the adjustment knob on the active controller is lit when the connected device is in operation.
Features
Applications
| Switch difference (temperature) | 2K (±1K tolerance) at 77°F (25°C) (50% RH) |
| Switch difference (humidity) | 4% RH (±1% tolerance) at 77°F (25°C) (50% RH) |
| Reaction time (humidity) | Approximately 5 sec |
| Contact type | Change-over contact (relay) |
| Contact resistance | <10 mOhm |
| Service life | NC: >50,000 cycles NO: >100,000 cycles |
| Max switching capacity | 24 Vdc, 4 A Relay NC: 240 Vac, 6 (1) A output Relay NO: 240 Vac, 8 (1.6) A output NC: 120 Vac, 6 (1) A NO: 120 Vac, 8 (1.6) A |
| EMC | Acc. to EN 55014-1-2, EN 61000-3-2, EN 61000-3-3 |
| Optical indicator | LED |
| Connection | 5-pole terminal, clamping torque 0.5 Nm max; rigid wire 2.5 mm2 (0.10 in2) stranded wire (with wire end ferrule) 1.5 mm2 (0.06 in2) |
| Mounting | Clip for 35 mm (1.4") DIN rail, EN50022 |
| Casing | Plastic according to UL94 V-0, light gray |
| Fitting position | Vertical |
| Operating temperature | 32 to 140°F (0 to 60°C) |
| Storage temperature | -4 to 176°F (-20 to 80°C) |
| Protection type | NEMA 2 (IP20) |
| Control range | Humidity and °F temp control, SPDT, 32 to 140°F, 50 to 90% RH, 100 to 240 Vac |
| Dimensions | 3.0 x 2.4 x 1.7" (77 x 60 x 43 mm) |
| Weight | Approx. 7.1 oz (0.20 kg) |
| Switch difference (temperature) | 2K (±1K tolerance) at 77°F (25°C) (50% RH) |
| Switch difference (humidity) | 4% RH (±1% tolerance) at 77°F (25°C) (50% RH) |
| Reaction time (humidity) | Approximately 5 sec |
| Contact type | Change-over contact (relay) |
| Contact resistance | <10 mOhm |
| Service life | NC: >50,000 cycles NO: >100,000 cycles |
| Max switching capacity | 24 Vdc, 4 A Relay NC: 240 Vac, 6 (1) A output Relay NO: 240 Vac, 8 (1.6) A output NC: 120 Vac, 6 (1) A NO: 120 Vac, 8 (1.6) A |
| EMC | Acc. to EN 55014-1-2, EN 61000-3-2, EN 61000-3-3 |
| Optical indicator | LED |
| Connection | 5-pole terminal, clamping torque 0.5 Nm max; rigid wire 2.5 mm2 (0.10 in2) stranded wire (with wire end ferrule) 1.5 mm2 (0.06 in2) |
| Mounting | Clip for 35 mm (1.4") DIN rail, EN50022 |
| Casing | Plastic according to UL94 V-0, light gray |
| Fitting position | Vertical |
| Operating temperature | 32 to 140°F (0 to 60°C) |
| Storage temperature | -4 to 176°F (-20 to 80°C) |
| Protection type | NEMA 2 (IP20) |
| Control range | Humidity and °F temp control, SPDT, 32 to 140°F, 50 to 90% RH, 100 to 240 Vac |
| Dimensions | 3.0 x 2.4 x 1.7" (77 x 60 x 43 mm) |
| Weight | Approx. 7.1 oz (0.20 kg) |
