3 phase motor: 5 wire delta ?


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Old 06-08-21, 11:26 AM
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3 phase motor: 5 wire delta ?

Bought a used conveyor belt and the motor on it has 6 wires, one being ground. T1 t2 t3 are attached in delta but there are 2 more wires that run directly into the casing. Any idea what these are for? Thanks.


 

Last edited by PJmax; 06-08-21 at 12:26 PM. Reason: reoriented motor label
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Old 06-08-21, 12:28 PM
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My first guess is they go to a temperature sensor inside the motor and are connected in series to the coil of the magnetic contactor. Power is interrupted to the contactor on overheat.

Second guess is some type of internal brake.

I had the model number wrong. It's a 63B4 type motor. Not much info online.
63B4 motor
63B4 type motor with brake
 

Last edited by PJmax; 06-08-21 at 12:46 PM.
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Old 06-09-21, 03:08 AM
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You are correct, it is a brake. Thank you
 
 

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