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777-P2 - SymCom 3-Phase Overload Relay 200-480V 2-800 FLA Plus
The Model 777 / 77C Family
The Model 777/77C is a fully programmable electronic overload relay designed to protect any motor drawing 2-800 full load amps (external CTs are required above 90 amps). The 77C (family of products) is for single-phase 100-240VAC applications and the 777 (family of products) is for 3-phase 200-480VAC applications, with several specialized units for other voltage ranges and unique applications. Common applications include conveyer systems, HVAC equipment, saws and grinders, fan motors, and almost any pumping application. Some unique applications include use with a Subtrol® equipped Franklin submersible motor to detect high motor temperatures and applications where a fast linear trip is required.
All of the overload relays provide unsurpassed protection by combining overload, underload, voltage and power monitoring functions in one package. The overload relays have a 3-digit display for viewing real-time voltage and current and for displaying the last or active fault code (to simplify diagnostics) when tripped for a fault condition. The units can be used as a stand-alone product or the communications port can be used to form a Modbus, DeviceNet™, Profibus, or Ethernet network to monitor up to 99 units from a PC, PLC, or SCADA system, and for data logging through a PC with SymCom's Solutions software.
The communications port can also be used for remote monitoring to improve safety for personnel by allowing them to monitor and control motor operation without opening the electrical cabinet. This capability allows for a simple, cost-effective way to meet new requirements for arc-flash safety.
Features:
- Built-in 3-digit display for programming, real-time info, and diagnostics
- Programmable voltage and current settings/parameters
- Programmable restart control (automatic, semi-automatic, or manual)
- 3 separate programmable restart delay timers (rapid-cycle protection, motor cool down and dry-well recovery)
- Run-hour meter (available via network or remote displays)
- Reset pushbutton (and optional remote reset pushbutton)
- Current/last fault indication on 3-digit display
- Last four faults (with characteristics) available via network or remote displays
- Network communications (Modbus, DeviceNet™, Profibus, or Ethernet)
- Optional remote displays aid compliance with arc-flash safety regulations
Auxiliary Products:
- Communication Modules: P/N: RS485MS-2W, P/N: CIO-MB, P/N: CIO-120-MB
- RM-1000/RM-2000 (remote displays): P/N: RM-1000, P/N: RM-1000-3R, P/N: RM-1000 NEMA 4, P/N: RM-2000, P/N: RM-2000-CBM+, P/N: RM-2000-RTDW
- Solutions Software: P/N: Solutions-D, P/N: Solutions-M
- Manual Remote Reset Kit: P/N: 777-MRSW
 Download the The SymCom Product Line catalog in *.pdf format
Download the SymCom Overview brochure in *.pdf format
Download the Overload Relays datasheet in *.pdf format
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