C Series Complete Molded Case Circuit Breakers, J Frame(42 Products)
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Working Mechanism
- When the current flowing through the circuit exceeds the rated level, these circuit breakers interrupt the flow of electricity to the circuit, protecting the equipment from detecting a fault.
- They can be reset by switching the handle to Off & On positions once the fault is resolved.
Features
- They have a moulded case construction, which provides durability and protection against mechanical damage.
- These J-frame complete MCCBs have a sliding handle with ON & OFF positions for easy identification of the breaker's status.
- They are equipped with a 3-pole configuration for controlling multiple connections simultaneously.
- These MCCBs are available in current ratings ranging from 63 to 250A.
- Selected models have a built-in test kit for electronic field testing and a push-to-trip button to check the tripping function during scheduled maintenance.
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. How to install a circuit breaker?
A.
- Remove the panel cover. Use a screwdriver to unscrew all four edges of the panel cover while holding it tight to prevent it from slipping off.
- Connect the neutral and ground wires.
- Place the breaker inside.
- Screw the panel cover back.
Q. What are the reasons for frequent tripping of the circuit breaker?
A. A circuit overload, short-circuiting, ground fault surges, defective circuit breaker or an arc fault can cause tripping of the circuit breaker.
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