Replacement Parts Movable Ring Normally Closed Thermostat for G KSD201 70 Degree. Here are a few important things to note before you proceed with your purchase: 1. Pay attention to the shape of the contact terminal. Ensure that it matches the shape of your original switch（TYPE B）. This is important to ensure compatibility. 2. Determine whether your original machine requires a normally open (NO) or normally closed (NC) switch. The G KSD201 70℃ switch is available in both configurations. Although they may look identical, their functionality differs. 3. The G KSD201 70℃ switch has a specific temperature range, and it's crucial to choose the appropriate one for your needs. Remember to make an informed decision based on your specific requirements to ensure the switch is compatible and functions as intended