HMMS | Motor Protection Circuit Breaker Accessories | HMMS32–HMMS80

Thanks to the protective cover, the front of the adjustment mechanism is securely protected by a transparent cover, preventing external interference with the set current value or the reset operation. When used as an emergency stop while the motor is running, the test button opens the contactor contact to stop the motor; additionally, when the test button is pulled to check the correct operation of the thermal relay contact, the contact position changes and the test is carried out. The current adjustment screw allows the rated current value to be precisely adjusted in ± three steps using a screwdriver.