Datasheet > 777-P2

777-P2

更新时间： 2023-12-06 19:59:56

品牌	Logo	应用领域
力特 - LITTELFUSE		/
页数	文件大小	规格书
5页	429K
描述
The 777-P2 three-phase current and voltage monitor provides motor 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-P2 数据手册

Motor and Pump Protection Relays

777 Series

3-Phase Current & Voltage Monitor

Description

The 777 unit is a fully-programmable, electronic overload relay designed to protect any motor drawing 2-800 full load A

(external CTs are required above 90 A). The 777 (family of products) is used for 3-phase, 200-480 V ac applications, with

several specialized units for other voltage ranges and unique applications. Common applications include conveyor systems,

HVAC equipment, saws and grinders, fan motors, and almost any pumping application. Some unique applications include

use with a Subtrol* equipped Franklin submersible motor to detect high motor temperatures and applications where a fast

linear trip is required.

All of the overload relays provide unsurpassed protection by combining overload, voltage, phase loss and reversal,

voltage and current unbalance, power monitoring, and underload based on current — all in one package. For standalone

applications, the 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. The 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. This capability allows for a

simple, cost-effective way to meet new requirements for arc-flash safety.

*Subtrol and DeviceNet are trademarks of their respective owners.

Features & Beneﬁts

FEATURES

BENEFITS

Visual indication for programming, viewing real-time voltage or

current, 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/777

Speciﬁcations are subject to change without notice.

1 of 5

Revised: 10/10/2022

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与777-P2相关器件

型号	品牌	描述	获取价格	数据表
777RR	AMPHENOL	D Subminiature Connector, Female; Male, Crimp Terminal, Plug	获取价格
777-RR	AMPHENOL	FEMALE; MALE, D SUBMINIATURE CONNECTOR, CRIMP, PLUG	获取价格
777-RRA-15P	AMPHENOL	D Subminiature Connector, 15 Contact(s), Male, Crimp Terminal, Hole .112-.124, Plug,	获取价格
777-RRA-15P-CTF	COOPER	D Type Connector, 15 Contact(s), Male, 0.109 inch Pitch, #4-40, Receptacle,	获取价格
777-RR-A-15-P-VF	AMPHENOL	D Subminiature Connector, 15 Contact(s), Male, Crimp Terminal, Plug,	获取价格
777-RR-A-15-PVFM	AMPHENOL	CONNECTOR, D SUBMINIATURE CONNECTOR	获取价格

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