The 777-ACCUPOWER is a fully-programmable, 3-phase motor and pump protection relay that measures motor output power using input voltage, current, and motor parameters. It operates with line voltages from 190 to 480 V ac and motor full-load currents from 2 to 800 A, requiring external current transformers for currents above 90 A. The relay includes a built-in display for real-time monitoring and setpoint configuration, supports surface mount or DIN-rail mounting, and has dimensions of 77.47 mm H × 97.79 mm W × 128.27 mm D. It has a maximum power consumption of 10 W, an IP20 and NEMA 1 enclosure rating, and operates from -40 °C to 70 °C. The relay meets UL 508, UL 1053, CSA C22.2, and IEC 60947-1 and IEC 60947-5-1 standards, with surge immunity per IEC 61000-4-5 Level 4 for line-to-ground (4 kV) and a short circuit rating of 100 kA.
The 777-AccuPower three-phase motor and pump relay provides protection with input voltage from 190–480 V ac and full load ampere range as follows: 2–25 A: 3-phase (looped conductors required); 25–90 A: 3-phase (direct); 80–800 A: 3-phase (external CTs).
3-PHASE POWER MONITOR/190-480V
3-PHASE POWER MONITOR/190-480V
Overload Relay, 3-Ph, Programmable,
Industrial Relays 3-PHASE POWER MONITOR/190-480V
| 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-ACCUPOWER | 5666-777-ACCUPOWER-ND | 777-ACCUPOWER | 777-ACCUPOWER | 777-ACCUPOWER |
| Product Name | Littelfuse 777 AccuPower Relay Provides Exceptional Protection | Protection Relays & Systems | Protection Relays & Systems | SYMC Protection Relays | Industrial Relays |
| Operating Temp | -40 to 158 F (-40 to 70 C) | -40 to 158 F (-40 to 70 C) |
