Schneider Circuit breaker, MA trip unit, 3-pole, 50A Part number ZZA_LV510434

This is a three-pole circuit breaker fitted with a magnetic (MA) trip unit, rated at 50A. It provides short-circuit protection by opening the circuit when current exceeds the set magnetic trip threshold, without the inverse-time delay characteristic of thermal-magnetic units. Such devices are typically used within control panels to protect motor circuits and other loads where a dedicated short-circuit protective device is required, often paired with separate overload protection.