SMR-22 Thermal Overload Relay

SMR-22 Thermal Overload Relay

SMR- □□ type thermal overload relay is mainly used in the electric system with AC 50Hz-60Hz, rated operation voltage up to 660V,current to 800A. It is used to protect AC three-phase asynchronous motor against overload and open-phase. This products can be properly combined with contactors and installed in an enclosure as motor starter to protect the motor from overload and open phase.

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SMR- □□ type thermal overload relay is mainly used in the electric system with AC 50Hz-60Hz, rated operation voltage up to 660V,current to 800A. It is used to protect AC three-phase asynchronous motor against overload and open-phase. This products can be properly combined with contactors and installed in an enclosure as motor starter to protect the motor from overload and open phase.





Type and Signification:



Characteristics:

● When the thermal overload relay tripped, the trip indicator will go up 2-3mm;When the thermal overload relay on the mode of manual reset ,you can put on the reset button to reset.

 Automatic reset:put on the reset button and turn 90°anticlockwise.

 Main circuit terminal and control circuit terminal is clearly distinguished to avoid wrong wiring by manual.


Technical Parameters:


Type

SMR-22

SMR-40

Return Mode

Manual or Auto return

Current Setting Range

Setting Range (A)

Setting Range (A)

0.1-0.16

0.16-0.25

0.25-0.4

0.4-0.63

0.63-1

1-1.6

1.6-2.5

2.5-4

4-6

5-8

6-9

7-10

9-13


12-18
16-22


18-26

24-36

28-40

Contact Arrangement

1NO+1NC

Model of Matching Contactors

SMC-9,SMC-12,SMC-18,SMC-22

SMC-32,SMC-40



Dimensions(mm):










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