1. 22mm, 30mm diameter hole, standard/thin type.
2. 2 position maintained/spring returns, 3 position maintained/spring/mannual returns, 4 & 5 positions maintained.
3. Voltage Rating: - 24V, 100-110V, 200-220V, 400-440V, 500-550V.
4. Color: - Black, Green, Red.