Littelfuse SymCom 777-FT Series MotorSaver.

Littelfuse SymCom 777-FT Fast Over Current Trip MotorSaver is a fully programmable electronic overload relay. It is designed to monitor and protect any 3-phase 200-480VAC motor drawing 2-800 full load amps (external CTs are required above 90 amps). They provide unsurpassed protection from faulty voltage, underload and overload conditions.

The Model 777-FT can be used on any three phase motor drawing from 2-800 amps. It's linear·Ground Fault (Class II) trip feature can be set to trip in as little as 320ms, allowing one to protect mechanical drives·Rapid Cycling from breaking chains, shear pins, etc. This product has been specifically designed for waste water, conveyor, lift gate and other applications where shock relays are used.

The Model 777-FT provides linear overcurrent trip and 480 VA @ 240V ac output SPDT relay contacts. Also known as shock relay, it is designed for fast linear trip applications. Overcurrent trip delay can be set ranging from less than 500 ms–70 seconds. Low trip delay is ideal in chain drive and drive linkage applications to prevent breaking in overload or jam situations. Other applications include sewage clarifiers, mixers, augers, and conveyors. Longer trip delay is ideal for motor test panels in rewind shops. Also includes adjustable motor acceleration time and overcurrent trip delay time when the faster linear trip mode is used.

Auxiliary Products:
• Remote Displays (RM-1000/RM-2000)
• Communication Modules
• Remote Manual Reset Kit
• Solutions Software

Protects 3-Phase Motors From:
• Low voltage
• High voltage
• Voltage unbalance
• Reverse-phase
• Overcurrent
• Undercurrent
• Current unbalance
• Single-phase

Other Features:
• Network programmable
• Programmable with 9-volt battery prior to installation
• Automatic reset with three separate restart delay timers, or manual reset
• Tamper guard
• RS-485 communications port (communications module sold separately)
• 3-digit LED diagnostic display
• Last fault memory

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.