Datasheet > 777-KW/HP-P2

777-KW/HP-P2

更新时间： 2023-12-26 09:00:09

品牌	Logo	应用领域
力特 - LITTELFUSE		/
页数	文件大小	规格书
4页	287K
描述
The 777-KW/HP-P2 three-phase current and voltage monitor provides protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 2–20 A (looped conductors required); 20–90 A direct; 90–800 A (external CTs required).

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777-KW/HP-P2 数据手册

Motor and Pump Protection Relays

777-KW/HP-P2 Series

3-Phase Current & Voltage Monitor

Power is Linear, equal

Current is not linear, low

sensitivity for low loads

and high sensitivity

for high loads.

sensitivity at both

low and high

loads.

No Load

Full Load

No Load

Full Load

Description

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 & Beneﬁts

FEATURES

BENEFITS

Visual indication for programming, viewing real-time voltage, current,

kilowatts, horsepower, and last fault code

Built-in display

Programmable voltage and current settings

3 selectable restart options

Allows usage on wide range of systems

Choose from automatic, semi-automatic, or manual to best meet

individual application needs

Program separate restart delay time for rapid cycle protection, motor

cool down, and dry-well recovery

3 programmable restart delay timers

Remote display compatibility

Flexible reset

Increases safety through remote display of real-time data and fault

history without the need to open the cabinet. Aids with arc flash

safety regulations.

Reset can be done through a push button on the relay or remotely

with optional 777-MRSW or OL-Reset remote reset kit

Applications

• Conveyor systems

• HVAC equipment

• Saws and grinders

• Fan motors

Littelfuse.com/777kwhpp2

Speciﬁcations are subject to change without notice.

1 of 4

Revised: 10/03/2022

12 3 4

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与777-KW/HP-P2相关器件

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777-LR-KW/HP-P2	LITTELFUSE	777-LR-KW/HP-P2 three-phase current and volta	获取价格
777-LR-P2	LITTELFUSE	The 777-LR-P2 three-phase current and voltage	获取价格
777-LR-TS	LITTELFUSE	The 777-LR-TS three-phase current and voltage	获取价格
777-MLR-KW/HP-P2	LITTELFUSE	777-MLR-KW/HP-P2 three-phase current and volt	获取价格
777-MRSW	LITTELFUSE	777-MRSW: Connect 9-pin adapter to 777 communication port.	获取价格
777-MV-P2	LITTELFUSE	The 777-MV-P2 three-phase current and voltage	获取价格

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