PTM6E series electronic circuit breakers with rated insulation voltage of 800V are suitable for infrequent switching and infrequent starting of motors in circuits with AC 50Hz, rated working voltage 400V and rated working current up to 1250A. It can protect the line and current equipment from damage with the functions of over-load long delay inverse time, short-circuit short delay inverse time, short-circuit short delay fixed time, short-circuit instantaneous and undervoltage protection. The circuit breaker may be installed vertically or horizontally. The circuit breaker must not fall into line. This product conforms to iEC60947-2, GB14048.2 and other standards.

It has a three-stage protection function, suitable for class B circuit breaker and other short-circuit protection devices connected in the same circuit have a completely selective mating in short-circuit condition.

1. Five tripping characteristics: the user can set and adjust the tripping device according to the load current;

2. The electronic trip is powered by the circuit breaker itself, and the current signal and control power are supplied by the ring current transformer installed in the circuit breaker;

3. With warning indication: When the load current exceeds the pre-set current, the LIGHT emitting diode on the surface cover of the circuit breaker will indicate yellow;

4. Overload indicator: When the load current exceeds the setting current, the light emitting diode on the surface cover of the circuit breaker will indicate red;

5. It has the alarm function of overload and non-tripping special for fire fighting: when the load current is overloaded, the circuit breaker will not tripping and output a power contact signal to drive the corresponding alarm device; Comply with the electromagnetic compatibility requirements of IEC60947 Appendix F.

1. Temperature: -5~+40℃, the average temperature within 24 hours does not exceed +35℃.

2. Relative humidity: when the maximum temperature is 40℃, it shall not exceed 50%; when the temperature is lower, it shall allow higher humidity, for example, when the temperature is 20℃, it can reach 90%.

3. Below 2000 meters above sea level.

4. Where there is no explosive hazard medium in the air and no corrosive metal and insulating gas and conductive dust.

5. Where there is no snow or rain, the pollution level is level 3.