... O1NO1NCOOL25(25mm)OOOO O O O1NO1NC 2NO2NCOORemark: O=Available 1, Latching for L16, L19A & L19B, L22 & L252, 1NO1NC for L19 & L223 ... your finger, the actuator will back to the original position.Latching, means that when you push switch once it will change ...