ABB REJ603 Self- Powered Feeder Protection Relay

Description

The ABB REJ603 is a compact, self-powered feeder protection relay designed for secondary distribution networks. It operates without auxiliary power, making it ideal for remote installations and medium-voltage systems.

Specifications

• Manufacturer: ABB

• Model: REJ603

• Country of Origin: Sweden

• Relay Type: Self-powered numerical feeder protection

• Power Supply: CT-powered (no external auxiliary power required)

• Protection Functions: 3-stage overcurrent, 2-stage earth fault (IDMT and definite time)

• Rated Frequency: 50 / 60 Hz

• Rated Current: 1A / 5A selectable

• Startup Power Requirement: Approx. 2.5 VA at rated current

• Tripping Output: 1 NO contact

• Binary I/O: 1 DI / 1 DO configurable

• User Interface: LED indicators and DIP switch configuration

• Fault Recording: Stores up to 100 fault records

• Dimensions: 160 × 96 × 150 mm

• Weight: 0.9 kg

• Enclosure Material: Flame-retardant plastic

• Communication: Optional serial interface available

Features

• Self-Powered Operation: Eliminates need for external power sources

• Compact Design: Fits easily into RMUs and compact substations

• Reliable Protection: Offers robust overcurrent and earth fault protection

• Flexible Configuration: DIP switches and optional software for setup

• Field-Proven Durability: Operates reliably in harsh environments

• Easy Integration: Ideal for distribution automation and retrofit projects

• Efficient Fault Management: Built-in fault recording for diagnostics

• Global Standards: Complies with IEC protection and safety norms