Differential temperature switch RJ402 ELEKTROBOCK

Differential temperature switch - 230V AC power supply, consumption up to 0.5W, adjustable temperature range +20 to +80°C, adjustable hysteresis +2 to +35°C, volt-free relay output 5A/250V AC, max. 2 temperature sensors, IP20 rating, operating temperature 0 to +50°C, suitable for controlling the solar system circulation pump or automatic recharging of the DHW tank

In stock 5 pcs
Expected shipping: 12.10.2026
Sale price €47,76 Regular price €51,82
ELEKTROBOCK  |  SKU: 08840372  |  Barcode: 8594012229792

Product description

Differential temperature switch RJ402

It serves as a differential temperature switch (e.g. to switch on the circulation pump at the specified
of the temperature difference and the subsequent switch-off of the pump when the temperature difference drops by the specified amount
hysteresis)
The regulator can be used for:
- automatic charging of the DHW tank
- automatic control of the circulation pump in the solar system
- Power supply: 230 V AC
- Consumption: up to 0.5 W
- Range set. temperature: +20°C to +80°C
- Set hysteresis: +2°C to +35°C
- Outputs (potential-free contacts): relay, 5A/ 250V AC
- Degree of protection: IP20
- Max. number of temperature sensors: 2
- Working temperature: 0°C to +50°C

Product parameters