General Electric TQDL21200 plug-in circuit breaker is designed to protect against faulty currents in panelboards and switchboards.
Working Mechanism:
- The circuit breaker opens when pressure is applied to the trigger.
- When faulty current flows through the system, the trip coil of the breaker gets activated.
- This moves the contacts away from each other and opens the circuit.
Features:
- It provides 200A standard current rating with a maximum interrupting capacity of 10kAIC at 120V.
- This circuit breaker features a thermal-magnetic trip unit, providing long-time and instantaneous current limiting functions.
- It is equipped with load-side lug terminals for connecting multiple sections of the panelboard.
Standards and Approvals:
Frequently Asked Questions:
Q. What is the difference between MCCBs and MCBs?
A.
- MCBs protect items from current overloads while MCCBs protect equipment from fault currents & excess temperature rise.
- The tripping circuit of MCBs is fixed, while MCCBs have a movable tripping circuit.
- MCBs have comparatively low interrupting ratings than MCCBs.
Q. What is the maximum operating temperature of this General Electric TQDL21200 plug-in circuit breaker?
A. It can be operated at temperatures up to 75 degrees C.
Q. What factors should be considered while choosing an MCCB?
A. Major factors include current & voltage ratings, frame size and ultimate short-circuit breaking capacity.