JTR-12-1N-B triac switch

The JTR triac switches allow contactless switching of the electric heater. This solution brings some advantages:

- reliability of the semiconductor components - the device requires no operation or special maintenance
- voltage is switched at zero crossing - minimal interference to the mains
- noiseless operation (compared to contactors)
- continuous control of the heating output from 0 to 100% based on a control voltage of 0-10 V

Heater assignment

- JTR-2-B - 1× 230 V up to 2.3 kW
- JTR-12-1N-B - 1× 230 V or 2× 230 V up to 6/12 kW
- JTR-12-1N-B - 1× 400 V or 3× 400 V up to 12 kW
- JTR-18-1-B - 1× 400 V or 3× 400 V up to 18 kW
- JTR-24-1-B - 3× 400 V up to 24 kW

3-phase heaters must be connected in a triangle or star (the center of the star must not be connected to the center conductor). For 3× 400 V heaters, the load must be distributed symmetrically between the phases, so the heater must draw the same current on all phases. The rated current of the triac switch must not be exceeded.

Recommended controller type:

UNIREG

Note

JTRs are not required for MBE ... R2.

JTR-18-1

The triac switch has the same parameters as the JTR-18-1-B, but a different method of power control.