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The portable MS-2 is capable of testing thermal, magnetic, and solid-state motor overload relays; molded-case circuit breakers; and ground-fault trip devices rated up to 125 A. It features a digital memory ammeter and digital multirange timer. Output ranges: 5 A at 120 V; 25 A at 24 V; 120 A at 6 V; 240 A at 3 V. Instantaneous output current: 750 A.