Monitoring Relays
 | The MachineAlert™ family of dedicated function motor protection relays offers supplementary protective functions that are easily added to your motor control circuits. These relays meet application requirements for supplemental voltage-, current-, thermistor-, power-, and power factor based protection. MachineAlert relays are an economical choice for protecting equipment investments and minimizing production downtime. |
1409 Arcing Ground Fault Detection System
 | Bulletin 1409 Class I Arcing Ground Fault Detection Systems are intended for use with shunt-trip circuit breakers or medium voltage controllers. These Class I systems do not contain a high-current inhibit circuit. Bulletin 1409 Class II Arcing Ground Fault Detection Systems are designed for use with motor starters or contactors (controllers) to interrupt low-level ground faults. |
1410 Motor Winding Heaters
 | Bulletin 1410 Motor Winding Heater is intended for use with 3-phase AC motors to guard against damage caused by condensation build-up on motor windings. This device is not intended to be used to dry out damp motors. |