Littelfuse SymCom 455-575 MotorSaver Protection Relay.

Littelfuse SymCom 455-575 MotorSaver Protection Relays are 3-phase voltage monitors that combine load and line side monitoring to offer complete protection. Monitoring the load side will alert the user of contactor failure or impending contactor failure. Line side monitoring will also protect the motor from damaging fault conditions that may be present prior to the motor starting. With other line/load side monitors, the motor must be started before a voltage fault is detected.

The Model 455-575 (475-600VAC) is equipped with one SPDT 480VA @ 240VAC output relay.

Protects 3-Phase Motors From:
• Contact failure
• Loss of any phase (single-phasing) on the load or line side
• Low voltage
• High voltage
• Voltage unbalance
• Phase reversal
• Rapid cycling

Features:
• Both load and line-side monitoring provides contactor protection
• Diagnostic LED's indicate trip status and provide simple troubleshooting
• Microcontroller-based circuitry provides better accuracy and higher reliability than analog designs
• Transient protection meets IEEE and IEC standards and permits operation under tough conditions
• Single-Phase conditions are detected regardless of regenerated voltages

Disclaimer Notice: Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.