777-KW/HP-P2 Series - Littelfuse 777-KW/HP-P2 Current & Voltage Monitor Provides Exceptional Protection

Series: 777-KW/HP-P2
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The 777-KW/HP-P2 is a 3-phase current and voltage monitor that provides unsurpassed protection by combining overload, voltage, phase loss and reversal, voltage and current unbalance, power monitoring*, and underload trip based on power into one efficient unit. The underpower trip feature is desirable anytime the current vs. load characteristic is non-linear or has little change. In general terms, smaller motors and slow-speed motors have little change in current over the normal load range. Larger motors that are running light loads will also show small current changes over the operating load range. The low and high power protection feature increases reliability for non-linear motors where the load characteristic has little change.

For standalone applications, these units incorporate a 3-digit LED display that is used for programming, providing real-time operational information, and displaying diagnostic codes to aid in troubleshooting a fault condition. These units also feature a communications network port that can be used with communication modules, listed in the 777 accessories section, to form a Modbus, DeviceNet**, Profibus, or Ethernet network. Up to 99 units can be remotely monitored and controlled from a PC, PLC, or SCADA system, and data logging through a PC with the optional Solutions software.

*Low current trip and high power trip are network programmable only. **DeviceNet is a trademark of its respective owner.

Features

  • Built-in display
  • Programmable voltage and current settings
  • 3 selectable restart options
  • 3 programmable restart delay timers
  • Remote display compatibility
  • Flexible reset

Product Literature

For Technical Questions

Call +1 800-832-3873 or email us at relays@littelfuse.com 

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)		Output
Form		Termination TypeMounting MethodFull Load Amp Range (A)DimensionsWeight (lbs/g)Overcurrent Trip ClassOvercurrent Trip PointAddressCurrent Accuracy (%)Current Unbalance Trip Point (%)Ground Fault Accuracy (%)Ground Fault Current Trip Point (A)HumidityStockSamplesCompare
777-575-KW/HP-P2500 - 600 VacSPDT - Form CTorque: 7 in-lbsSurface mount (4 - #8 screws) or DIN rail mount2 - 20 (looped conductors required); 20 - 90 (direct); 90 - 800 (external CTs required)3.05 H x 3.85 W x 5.05 D in. (77.5 x 97.8 x 128.3 mm)0 Kg02 - 60; J02 - J60; L00 - L60; or OFF(20 - 100 A) … MULT of 80 - 140% of CT primaryCOM: C00 - C07; RS-485: A01 - A99±3% (<100 A direct)2 - 50% or 999 (disabled)±15%(3 - 20) … MULT or 12 - 40% of primary CT or OFF10 - 95% non-condensing per IEC 68-2-3CheckOrder
777-HVR-KW/HP-P2340 - 480 VacSPDT - Form CTorque: 7 in-lbsSurface mount (4 - #8 screws) or DIN rail mount2 - 20 (looped conductors required); 20 - 90 (direct); 90 - 800 (external CTs required)3.05 H x 3.85 W x 5.05 D in. (77.5 x 97.8 x 128.3 mm)0 Kg02 - 60; J02 - J60; L00 - L60; or OFF(20 - 100 A) … MULT of 80 - 140% of CT primaryCOM: C00 - C07; RS485: A01 - A99±3% (<100 A direct)2 - 50% or 999 (disabled)±15%(3 - 20) … MULT or 12 - 40% of CT primary or OFF10 - 95% non-condensing per IEC 68-2-3CheckOrder
777-KW/HP-P2200 - 480 VacSPDT - Form CTorque: 7 in-lbsSurface mount (4 - #8 screws) or DIN rail mount2 - 20 (looped conductors required); 20 - 90 (direct); 90 - 800 (external CTs required)3.05 H x 3.85 W x 5.05 D in. (77.5 x 97.8 x 128.3 mm)0 Kg02 - 60; J02 - J60; L00 - L60; or OFF(20 - 100 A) … MULT of 80 - 140% of CT primaryCOM: C00 - C07; RS485: A01 - A99±3% (<100 A direct)2 - 50% or 999 (disabled)±15%(3 - 20) … MULT or 12 - 40% of CT primary or OFF10 - 95% non-condensing per IEC 68-2-3CheckOrder
777-LR-KW/HP-P2200 - 480 VacSPDT - Form CTorque: 7 in-lbsSurface mount (4 - #8 screws) or DIN rail mount1 - 2 (looped conductors required); 2.1 - 9.0 (direct); 10 - 800 (external CTs required)3.05 H x 3.85 W x 5.05 D in. (77.5 x 97.8 x 128.3 mm)0 Kg02 - 60; J02 - J60; L00 - L60; or OFF(2 - 10 A) … MULT of 80 - 140% of CT primaryCOM: C00 - C07; RS485: A01 - A99±3% (<100 A direct)2 - 50% or 999 (disabled)±15%(0.3 - 2.0) … MULT or 6 - 40% of CT primary or OFF10 - 95% non-condensing per IEC 68-2-3CheckOrder
777-MLR-KW/HP-P2200 - 480 VacSPDT - Form CTorque: 7 in-lbsSurface mount (4 - #8 screws) or DIN rail mount0.5 - 5 (looped conductors required); 5 - 21 (direct); 40 -740 (external CTs required)3.05 H x 3.85 W x 5.05 D in. (77.5 x 97.8 x 128.3 mm)0 Kg02 - 60; J02 - J60; L00 - L60; or OFF(2 - 10 A) … MULT of 80 - 140% of CT primaryCOM: C00 - C07; RS485: A01 - A99±3% (<100 A direct)2 - 50% or 999 (disabled)±15%(3 - 20) … MULT or 12 - 40% of CT primary or OFF10 - 95% non-condensing per IEC 68-2-3CheckOrder

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