ABB REF601BE446BB1NH Feeder Protection and Control Relay

Product Description

Model: REF601BE446BB1NH, entry-level feeder protection and control relay within ABB Relion® 605 series, a digital integrated protection unit for medium voltage distribution networks. The device integrates protection, measurement, monitoring and circuit breaker control functions. It supports both conventional current transformers and Rogowski coil sensors. It features 3-stage overcurrent protection, 2-stage earth fault protection, transformer inrush restraint and other core protection logics. Equipped with local HMI, it supports Modbus RTU and IEC 6103 communication. Parameter configuration is carried out via PCM600 software. Compliant with IEC and ANSI standards, it is widely deployed in industrial and utility MV switchgear.

Technical Specifications

• Brand: ABB
• Model: REF601BE446BB1NH
• Product Type: Feeder Protection & Control Relay
• Series: Relion® 605 Series REF601
• Application Voltage: Medium voltage distribution system
• Protection Functions: 3-stage overcurrent (I> / I>> / I>>>), 2-stage earth fault protection, inrush restraint, voltage supervision, phase sequence monitoring
• Protection Characteristics: DT definite time / IDMT inverse definite minimum time (multiple standard inverse curves)
• Communication Protocols: Modbus RTU, IEC 6103
• Configuration Software: PCM600
• HMI: Local LCD display & operation keys, local CB open/close control
• I/O: Configurable binary DI / DO
• Auxiliary Supply: Universal DC/AC power supply
• Operating Temperature: -40℃ ~ +70℃
• Front Panel Protection: IP40
• Standards: IEC 60255, ANSI C37.90
• Mounting: Panel flush mounting inside switchgear cubicle

Application

Designed for protection of MV cable feeders, overhead lines and distribution transformer incomer/outgoing feeders. Typical applications include utility substations, industrial MV ring networks, data centers, traction substations, PV/wind farm grid interconnection points, mining and metallurgy power distribution. It provides fast fault isolation for short-circuit, overload and earth faults, fault recording, load monitoring and local/remote breaker control. Suitable for new switchgear build, legacy MV panel retrofits and EPC power distribution projects.

Relion 605 Series Model List

REF601BE446BB1NH REF601BE446ND1NH REF601CE446BB1NH REF601CE446ND1NH REJ601BB446HH1NH REJ601BE446HH1NH