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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Motor Protection Device Identification
Hi
The device in question is a radial disc with diameter ~ 22mm. It is marked "SG403". I suspect it is a PTC, but I would like to be sure and also figure out the specs. Any advice on PTC selection for motor protection applications would also be appreciated. The motor to which this component is connected has a cut-in current of 42A and a max run current of 7A. Thanks! |
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#2
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Motor Protection Device Identification
On Jul 8, 2:24*pm, alphamnemonic wrote:
Hi The device in question is a radial disc with diameter ~ 22mm. It is marked "SG403". I suspect it is a PTC, but I would like to be sure and also figure out the specs. Any advice on PTC selection for motor protection applications would also be appreciated. The motor to which this component is connected has a cut-in current of 42A and a max run current of 7A. Thanks! It's an RTI "Surge-Gard" NTC thermistor, but I haven't found any specs yet... |
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