ABB A1C125R40 40A 3p Mccb 25AKA

A1C125R40 is a three-pole (3P) MCCB, designed to provide protection for three-phase electrical circuits., "40A" designation indicates the maximum rated current of the MCCB, which is 40 amperes. This means the MCCB can safely handle continuous loads of up to 40A without tripping under normal operating conditions., "25AKA" indicates the breaking capacity of the MCCB, which is 25 kiloamperes. This signifies the maximum fault current that the MCCB can safely interrupt without sustaining damage., "A1" designation might refer to the type of trip unit used in the MCCB. Trip units are components within MCCBs that monitor electrical currents and trip the breaker when certain conditions, such as overcurrent or short circuit, are detected., "R" designation may indicate the type of enclosure used in the MCCB. Enclosures provide protection for the internal components of the MCCB against environmental factors such as dust, moisture, and accidental contact.