MQT8K020XB Cantherm, MQT8K020XB Datasheet - Page 4

• Manufacturer Part Number: MQT8K020XB
• Description: THERMOSTAT CTRL 20 DEG C NC 2A
• Manufacturer: Cantherm
• Series: MQTr

Specifications of MQT8K020XB

• Circuit: Normally Closed
• Switching Temperature: 68°F (20°C)
• Package / Case: Rectangular Case
• Mounting Type: Chassis Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 317-1388

Because of the way we manufacture thermostats to be used as controllers, their designation becomes more complicated than is
the case with protectors. An explanatory diagram appears above and a text explanation follows.
• Contacts which open when the temperature rises are designated X, and those which close when the temperature rises are
designated Y. The temperature at which the contacts operate when the temperature rises (the high temperature side) is shown
in the diagram.
S i m i l a r l y, the symbols X [Xbar] and Y [Ybar] are used for contacts which operate when the temperature falls (the low tempera-
ture side). X [Xbar] closes when the temperature falls,
Y [Ybar] opens when the temperature falls. Z and Z [Zbar] are transfer contacts. XZ indicates a main contact which opens when
the temperature rises, XZ [XbarZ] closes when the temperature falls.
• C is the standard rank designation for X contacts and B is standard for Y contacts. If there is no designation, consider X to be
C rank and Y to be B rank.
Guidelines for Ordering
1. Model name
2. Operating temperature and setting tolerance
3. Differential (temperature difference between on and off )
4. Contact configuration (X, Y, X [Xbar], Y [ Y b a r ] )
Model Designation Method
Relation between Differential Rank Indicator and Terminal contact capacity
Set temperature tolerances / differentials for various set temperatures
(when ordering, please indicate the following details)
5. Load capacity and type
6. Rate of change of ambient temperature, wind velocity, etc.
7. Power supply voltage, whether AC or DC
8. Please indicate other data, such as purpose and operating
conditions, in as much detail as possible.
Contact Type Indication