The Grayhill 423481-1-03N is a spring return rotary switch designed for applications requiring momentary positions. These switches have one or more momentary positions, where maintaining contact requires rotational force. Releasing the force allows the mechanism to return the contact to a normal, or detent, position. They are available in various configurations, ratings, and styles, offering versatility for industrial and commercial use. The switch provides 10,000 cycles of operation and is suitable for hold-to-test and hold-to-calibrate applications.