Littelfuse SymCom 777-HVR-LR-P2

The Littelfuse SymCom 777-HVR-LR-P2 is a 3-phase electronic motor overload relay for 340-480 V AC motors drawing 1-800 full-load amps (external CTs required above 9 A). It protects against overload, underload, phase loss, phase reversal, voltage and current unbalance, undervoltage and overvoltage, low and high power (network programmable). Built for: 480 V systems without a control power transformer (CPT): 600 V-rated output contacts.

Overcurrent trip class: 02-60, J02-J60, L00-L60 or Off (J enables jam protection, L linear trip). Restart delays: 3 programmable timers: rapid cycle, motor cool-down and dry-well recovery. Reset: Automatic, semi-automatic or manual (selectable); push button on the relay or remote with a 777-MRSW or OL-Reset kit. Display: 3-digit LED display: programming, real-time voltage and current, last fault code. Networking: Modbus, DeviceNet, Profibus or Ethernet via optional communication module; up to 99 units networked.

Output: 1C SPDT, 10 A at 240 V AC. Mounting: DIN Rail/Panel Mount. Dimensions: 77.47 x 97.79 x 128.27 mm (3.05 x 3.85 x 5.05 in), H x W x D.

It operates from -20 to +70 °C and can be stored from -40 to +80 °C. Approvals: UL 508, UL 1053, CSA C22.2, CE.