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The SYMETRIX 421M Overload Relay is a device typically used in industrial machinery to protect motors from damage caused by overload conditions. Its primary purpose is to sense the current passing through the motor and trip the relay if the current exceeds a set threshold, thus disconnecting the motor from the power source. Key features of the SYMETRIX 421M Overload Relay include adjustable settings for current threshold, restart delay, and manual reset functionality. It also typically includes LED indicators for overload status and power. Typical failures of the SYMETRIX 421M Overload Relay include malfunction due to dust accumulation, loose wiring connections, or component degradation. Additionally, improper calibration or settings adjustment can lead to false triggering or failure to protect the motor adequately. Regular maintenance, calibration, and inspection are recommended to ensure proper functionality of the device.
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.