489-P5-LO-A20-E-H | 489-P5-HI-A20 | SR489-P5-HI-A20 Relay

Model: 489-P5-LO-A20-E-H

Category: Relay

Finish: New/not new

Delivery time: from stock

Warranty: One year

Express: SF Express/Debon

IRIG-B AM: 2.5 to 6.0 Vpk-pk, signal ratio 3:1

Low forward power delay: 0.2 to 120.0 seconds, step size 0.1

Phase overcurrent voltage suppression: programmable fixed feature

Pulse output Pulse width: 200 to 1000 ms, step size is 1

Tachometer configurable: can be assigned to digital inputs 4 to 7

Weight: About 10 pounds

Product description

489-P5-LO-A20-E is a GE Multilin relay in the GE SR relay family (in the same family as the GE Multilin 469 motor protection relay and the GE Multilin 735 feeder protection relay). The 489-P5-LO-A20-E is designed for generator protection and can be used in induction or synchronous generators. The unit can operate at 25, 50 or 60 Hz.

The 489-P5-LO-A20-E is designed with a 40-character display that allows users to view value messages, diagnostics, and set values. The front panel includes a numeric keypad, status indicators, value up and down keys, RS232 port interfaces, and control and programming keys, including reset, Enter, menu, menu Up, and menu Down keys. This allows control without being connected to an external computer.

The rear panel includes 12 RTD inputs, 6 output relays, 2 RS485 communication ports, and 4 VT inputs. RTD is field programmable. Communication ports can use ModbusRTU or DNP 3.0 protocols up to 19200 bps (or both).

The rear panel of the 489-P5-LO-A20-E also includes four isolated 4-20 mA analog inputs and outputs and seven assignable digital inputs. There are seven CT inputs for three-phase output/three-phase neutral line and ground current detection, as well as a separate safety and filter ground. All inputs on 489-P5-LO-A20-E comply with SWC, C37.990 EMI, RFI anti-interference.