SymCom Motor Protection Devices


Motor Protection Relays in SymCom Model 777 Product Family are more than simple overload relays. They are complete motor, pump and system protection devices. These protection relays combine voltage and current monitoring to provide robust motor management.

The Model 777

overload relay can be used to protect any 3-phase motor drawing 2-800 amps (external CTs are required above 90A). It combines overload, underload, and voltage and power monitoring functions in one package and has a 3-digit display for viewing voltage, current, and last fault information to simplify diagnostics. Model 777 products are UL listed, CSA recognized and CE approved. Specialized Model 777 units are available to provide linear trip capability, handle medium voltage applications, provide low power trip functions for special pumping applications and more. See page 4 for descriptions of available specialized Model 777s. Adding an optional Modbus, DeviceNet™ or Profibus communications module enables communications.

Features

• Power factor measurement
• Power measurement
• Run-hour meter
• Programmable automatic, semiautomatic
or manual restart control
• 3 separate restart timers for rapid-cycle protection,
motor cool down and dry-well recovery
• Remote pushbutton reset option
• Built-in 3-digit display for setup and diagnostics
• Last fault indication on display
• Last 4 faults available on network or remote displays
• Optional remote displays (RM-1000 and RM-2000)
• Communication capabilities
• Adjustable underload trip delay

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