This current limiter is specifically designed for high load starting currents. However, as the load is energized, the current quickly drops and reaches a balanced state. The self-limiting temperature electric heating tape typically has a starting current 3-5 times its normal operating current, with a short duration of high current, usually 20-40 seconds. Its main technical feature is that the limiter is equipped with an automatic voltage regulation circuit board inside the protective box, which is connected in series with the load. The automatic voltage regulation circuit is controlled by an automatic phase-shifting circuit unit, a time-delay circuit unit controlling the relay circuit unit, and a DC power supply circuit. This limiter automatically adjusts the conduction angle of the thyristor controlled pole, gradually increasing the voltage across the load until it reaches the rated value. This current limiter can be installed in a power distribution box or electrical distribution box, effectively preventing circuit overloads caused by the high starting current of the electric heating tape.

Technical Parameters and Specifications

Voltage: 220V or 110V, Current Limit: ≤35A, No-load Power: ≤5W

Startup Time: ≥3-5 min