State-indicating device for low current applications with wider operating range

A state-indicating device (100) linked to a circuit breaker indicating the status thereof with test function, said circuit breaker having an On/Off (OF) function and a Signal Default (SD) function, wherein said state-indicating device (100) comprises:

• a housing;
• a microswitch assembly (12) attached within said housing, said microswitch assembly (12) comprising at least one microswitch button (19);
• a mechanical linkage linked to said microswitch assembly (12), and configured to selectively operate said microswitch assembly (12),
• wherein said mechanical linkage comprises:
• a mechanical plate (6);
• a lever (10),
• a test function actuator (4) coupled with said lever (10)
• a tripping assembly mounted on said mechanical plate (6);
• and
• an actuator (3) coupled with said tripping assembly and configured to:
• actuate said microswitch button (19) based on signals corresponding to said On/Off (OF) function, said Signal Default (SD) function and a combination of said SD function and said OF function (SD+OF) that allow said microswitch assembly (12) to change from Normally Open (NO) state to Normally Close (NC) state, and vice versa;
• and
• indicate the trip status of the circuit breaker linked to said state-indicating device (100), and
• wherein said test function actuator (4) is configured to actuate said microswitch button (19) without operating said actuator (3) to perform a test of a make or break operation with said lever (10) without switching ON said circuit breaker linked to said state-indicating device (100).