ABB REF615 Modules REF615E-C

Name: ABB REF615 Modules REF615E-C
Brand: ABB

Model: REF615E-C

Brand ABB

Series REF615E-C

Model REF615E-C

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Product Details And Specifications

ABB REF615 Series Technical Notes

The Evolution of REF615 Architecture

The REF615 was introduced as part of ABB's second-generation Relion® platform, succeeding the SPAJ 140 C and SPAJ 141 C feeder protection relays from the SPACOM/SPAM series. Early REF615 variants (A-configuration) offered basic ANSI 50/51/50N/51N overcurrent and earth-fault protection with a local HMI and RS-485 Modbus interface. Subsequent hardware revisions introduced IEC 61850 Ed.1 Ethernet communication (B/C configurations), followed by IEC 61850 Ed.2 with GOOSE and MMS support (D/E configurations).

The E-configuration, to which the REF615E-C belongs, represents the current production standard. It integrates a wider protection function library (including voltage, frequency, and thermal overload elements), a higher-resolution LCD, and dual Ethernet ports for ring topology (HSR/PRP). Backward compatibility with earlier REF615 configurations is maintained at the IEC 61850 logical node level, though hardware interchangeability between A/B and D/E generations is not supported due to different backplane connectors and firmware architectures.

The REF615 series is currently in its mature/sustained phase. ABB continues to supply spare units and firmware updates, but the platform is not receiving new feature development. Long-term maintenance customers should plan migration to the REF615 successor platform (REF630/REF650) within a 7–10 year horizon.

REF615 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked configurations within the ABB REF615 series. Units are classified by protection function set and communication variant.

Overcurrent & Earth-Fault Protection (Standard Feeder)

REF615A-C: A-config, ANSI 50/51/50N/51N, Modbus RTU, no Ethernet
REF615B-C: B-config, adds IEC 61850 Ed.1, single Ethernet RJ45
REF615C-C: C-config, IEC 61850 Ed.1 + DNP3, dual-port Ethernet option
REF615D-C: D-config, IEC 61850 Ed.2, GOOSE, MMS, single Ethernet
REF615E-C: E-config, IEC 61850 Ed.2, dual Ethernet (HSR/PRP), full function library

Voltage & Frequency Protection Variants

REF615E-V: E-config with extended voltage protection (ANSI 27/59/81O/81U)
REF615E-F: E-config with frequency protection elements (ANSI 81R, df/dt)
REF615E-VF: Combined voltage and frequency protection, E-config hardware

Arc Flash Protection Variants

REF615E-A: Integrated arc flash detection (ANSI 50ARC), point sensor inputs
REF615E-AC: Arc flash + standard overcurrent, combined protection set

Motor Feeder Protection Variants

REF615E-M: Motor feeder variant, adds ANSI 49/46/48/51LR thermal and unbalance
REF615E-MC: Motor feeder + overcurrent, full combined function set

Communication & I/O Expansion Modules

REF615-LPIO: Local panel I/O extension module, 8DI/4DO binary expansion
REF615-COM-IEC: IEC 61850 communication module, field-replaceable
REF615-COM-DNP: DNP3 serial communication module, RS-485/RS-232
REF615-PSM-24VDC: 24 VDC auxiliary power supply module for REF615 chassis
REF615-PSM-110VDC: 110 VDC auxiliary power supply module
REF615-PSM-220VDC: 220 VDC auxiliary power supply module

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