1、 Main feature 1: The main circuit passes through the current sensor of the protector, and the current sampling method is used. 2. The current value is displayed digitally, and the fault cause indicator light is displayed. 3. Starting self delay, overcurrent protection inverse time limit. 4. The rated current and overcurrent action time can be set separately. 5. Compact structure, can be combined into one or installed separately.

2、 Main functional protection functions: overcurrent, locked rotor, three-phase current imbalance, phase failure, overvoltage and other fault protection. Setting function: The rated current value and overcurrent protection action time can be set on site. Display function: Display the actual current value during operation, memory display of overcurrent and locked rotor current during protection, and display of fault category indicator light.

3、 Protection characteristics, protection function, action time, action conditions, overcurrent within 360 seconds, working current (IA) ≥ 1.2 times the set current (IN), inverse time limit action, phase interruption within 2 seconds, one or two phases disconnected, unbalanced within 2 seconds, phase current deviation greater than 60%, locked rotor within 0.5 seconds, working current (IA)>8 times the set current (IN), overvoltage within 2 seconds, working voltage ≥ 120% of the rated current, starting time within 6 seconds. No overcurrent protection is provided during motor starting time

4、 Technical parameters Contact capacity AC220V/* * AC380V/3A Electrical life ≥ 105 times Contact characteristics Protection Contact normally closed, if special order is required Production measurement range Current 1-500A Split display distance less than 5 meters