The 777-LR-P2 is a three-phase current and voltage monitor designed to protect motors with a full load current range of 1-800 A, using external current transformers for currents above 9 A. It operates on 200-480 V ac and includes a built-in 3-digit LED display for programming and real-time diagnostics. The relay features programmable overload, phase loss, voltage unbalance, underload, and linear overcurrent trip functions, with a 480 VA @ 240 V ac SPDT output contact rated for pilot duty. It supports remote reset, network communications, and complies with UL508, UL1053, CSA C22.2, and IEC 60947-1 standards. The unit mounts via surface mount or DIN rail, measures 77.47 mm H × 97.79 mm W × 128.27 mm D, and operates in ambient temperatures from -20 °C to 70 °C.
The 777-LR-P2 three-phase current and voltage monitor provides motor protection with input voltage from 200–480 V ac and motor full load ampere range of 1–9 A (direct); 10–800 A (external CTs required).
3-PHASE OVERLOAD RELAY/200-480
3-PHASE OVERLOAD RELAY/200-480
Motor Saver, 200-480VAC Input, 1-9A
Industrial Relays ALARM CONTR/BAT CHG W/O SD12-PC SOCKET
| Littelfuse, Inc. | DigiKey | Quarktwin Technology Ltd. | Galco Industrial Electronics | VAST STOCK CO., LIMITED | |
|---|---|---|---|---|---|
| Product Category | Protective Relays and Monitoring Relays | Protective Relays and Monitoring Relays | Protective Relays and Monitoring Relays | Protective Relays and Monitoring Relays | Electromechanical Relays |
| Product Number | 777-LR-P2 | F10490-ND | 777-LR-P2 | 777-LR-P2 | 777-LR-P2 |
| Product Name | Littelfuse 777 Current & Voltage Monitor Provides Exceptional Motor Protection | Protection Relays & Systems | Protection Relays & Systems | SYMC Protection Relays | Industrial Relays |
| Current Sensitive Relay | Undercurrent |
