EATON ED3150 Molded Case Circuit Breaker, 3-Pole, 150 A, 240VAC, 125 Vdc, 65 Kaic At 240VAC, 50/60 Hz

Eaton ED3150 moulded case circuit breaker with F-frame provides overcurrent protection and safe switching in DC & AC systems.

Working Mechanism:

• Eaton ED3150 circuit breaker normally passes current through its current-carrying contacts.
• When a fault is detected, the contacts move away from each other and trip the unit thermally or magnetically.
• After troubleshooting the issue, reset the breaker to restart the operation.

Features:

• Eaton ED3150 circuit breaker can accommodate 4 to 4/0 AWG wires.
• This breaker features non-interchangeable thermal & magnetic contacts for long-time and instantaneous protection.
• It has a 150A current rating and a maximum interrupting capacity of 65kAIC.
• This circuit breaker features 3-pole, 3-phase configuration for high-speed blow open action.
• It is equipped with bolt-on load side lug terminals for secure connection.

Standards and Approvals:

• CSA
• UL

Frequently Asked Questions:

Q. What is the difference between MCBs and MCCBs?

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 causes moulded case circuit breakers to trip?

A. Overloading of a circuit is the main reason that leads to frequent short-circuit tripping.

Q. What to check before operating Eaton ED3150 circuit breaker?

A.

• Remove dust or moisture from the surface of the circuit breaker with a vacuum or cloth. Do not blow debris into the circuit breaker.
• Switch to ON and OFF multiple times to ensure that the mechanical linkages are free.
• Check base, operating handle and cover for any cracks, discolouration & chipping.
• Check connectors and terminals for signs of overheating and looseness.
• Check the mounting hardware and the area where it is installed.