Replacement Parts Movable Ring Normally Closed Thermostat For KSD201 70 Degree。 Please note that before placing an order for the Replacement Parts Movable Ring Normally Closed Thermostat for KSD201 70 Degree, it is important to confirm if you require the 70 Degree Normally Closed variant. This thermostat is available in both Normally Closed and Normally Open versions. If you mistakenly purchase the Normally Closed version when you require the Normally Open one, it will not function properly. We have over ten years of experience in manufacturing temperature control switches and prioritize the quality of each product. If you find that the thermostat you purchased does not work, please double-check if you have the correct model. If you need the 70 Degree Normally Open version or if you have any other questions, feel free to contact us directly. We will be happy to assist you. Before making a purchase, please carefully examine the shape of the switch ring on your existing machine. Take a close look at the two different shapes of rings in the provided image and make sure to distinguish between them. Our switch belongs to type B.