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The GE SR489-P5-LO-A20-E Motor protector is a device designed for generator protection and belongs to the GE Multilin relay family. The following is a detailed description of the protector:

Basic information

Model: SR489-P5-LO-A20-E

Manufacturer: General Electric

Type: Generator management relay/Motor protector

Design feature

Compact: It has a compact volume with dimensions of 21.6 cm (L) x 22.4 cm (W) x 25.2 cm (H) and a shipping weight of about 10 kg.

Easy installation and maintenance: The compact structure makes installation simple, while it is also designed with easy maintenance in mind.

High reliability: The motor protector has long life and perfect protection functions, such as overload protection, short circuit protection, undervoltage protection, overvoltage protection, etc.

Excellent regulating performance: It can automatically adjust according to the actual situation of the generator, maintain the stable operation of the generator, and improve the power generation efficiency.

Technical specification

Frequency parameter: can operate at 25, 50 or 60 Hz.

Display and interface:

Designed with a 40-character display that allows users to view value messages, diagnostics, and setting points.

The front panel includes a numeric keypad, status indicators, numerical up and down keys, RS232 port interfaces, and control and programming keys, including reset, input, menu, menu Up, and menu Down keys.

Input and output:

The rear panel includes twelve RTD inputs, six output relays, two RS485 communication ports, and four VT inputs.

Four isolated 4-20 mA analog inputs and outputs and seven assignable digital inputs.

Seven CT inputs for three-phase output/three-phase neutral line and ground current detection, as well as a separate safety and filter ground.

Communication and protocol

Communication ports can use ModbusRTU or DNP 3.0 protocols (or both) up to 19200 bps.

Application scenario

The motor protector is suitable for a variety of generator management and protection applications, especially where high precision protection and regulation are required.

Additional information

The equipment has SWC, C37.990 EMI, RFI anti-interference, to ensure stable operation in a variety of environments.

The motor protector not only has a powerful protection function, but also is easy to configure and use, which is an ideal choice for generator protection.

In summary, the GE SR489-P5-LO-A20-E motor protector is a powerful, easy to use and highly reliable generator management relay for a variety of generator management and protection applications.

GE SR489-P5-LO-A20-E Motor protector

GE SR489-P5-LO-A20-E Motor protector

GE SR489-P5-LO-A20-E Motor protector

GE SR489-P5-LO-A20-E Motor protector

GE SR489-P5-LO-A20-E Motor protector