Compatible with AC and DC systems for the stated amperage Rocker actuator is flush in the "ON"� position, eliminating the risk of accidental switching Flush in the "On" position. Compatible with AC and DC systems for the stated amperage Rocker actuator is flush in the "ON" position, eliminating the risk of accidental switching Flush in the "On" position Circuit breakers will trip all poles if any one pole trips "Trip Free" design cannot be held "ON" during fault current condition MODEL NO - 7547