14.3.9. Replacing Circuit Breakers

*Procedure is the same for both AC Input Circuit Breaker (CB1) and DC Output Circuit Breaker (CB2).

Preparation:

• Shut down and lock out all power to ATevo.
• Remove safety shield.
• Check with a voltmeter before proceeding.
• Remove wires on both sides of circuit breaker, noting polarity.

For Standard kAIC Breakers:

• Standard breakers are mount to a DIN rail.
• Pull tab located on right side of breaker to release it from rail.
• Place new breaker in same orientation onto DIN rail.
• Push in snap tab to lock it to DIN rail.
• Reconnect wires with same polarity as removed breaker.

For Medium or High kAIC Breakers:

• Breakers are mounted to a breaker bracket via (2) screws and nuts. Screws are along centerline of breaker between lugs on left and right side of breaker. Nuts are on back of breaker bracket.
• Remove nuts from back of breaker bracket and pull breaker toward you, off of breaker bracket.
• Remove screws from breaker and insert them into new breaker.
• Position new breaker onto breaker bracket and install nuts on back of breaker bracket.
• Reconnect wires with same polarity as removed breaker.
• Replace safety shield and close front panel door.
• Restart ATevo.