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Humidity controller SP-1000B mechanical thermostat switch adjustable thermostat hot type

price:USD$33.00
discount 70% in 2018-09-24 to 2018-09-26
price: USD$ 23.10
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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brandElectric in the clouds
ModelSP1000B
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Due to the different coefficient of thermal expansion, double sheet metal when the temperature changes, both sides of the expansion and contraction of different degrees, so under the different temperature, the bending degree of change.

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When the temperature is higher than the expansion temperature of the double metal sheet, the position of the double metal sheet is deformed and disconnected, and the circuit is broken.

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When the temperature is lower than that of the double metal sheet.,Double sheet metal contact position to restore prototype and close, circuit closed.

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Temperature controller is divided into normally open and normally closed two

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NC: when the set temperature, the thermostat in a normally closed state, when the actual temperature drop to or close to the set temperature, the heating load will start, usually the thermostat in the normally closed state, when the actual temperature is greater than the set temperature, the load is always in line outage state.

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Normally open: when the set temperature, the thermostat is in a normally open state, when the actual temperature is greater than the close to the set temperature, the heat load will usually start, thermostat in a normally open state, when the actual temperature is lower than the set temperature, the load is always in the outage state.

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