Product Description

The ABB REL670 is a high-performance line protection and control IED in the Relion 670 series, designed primarily for transmission-line protection applications. It supports distance protection and related functions for overhead lines and cables, with configurable current and voltage input arrangements and communication interfaces for substation automation. ABB identifies REL670 as part of the 670 series protection and control platform, alongside products such as RED670, RET670 and REC670. The 1MRK002801-AA identifier is associated with REL670 documentation and hardware configurations, while 1MYN743301-F identifies a specific product variant or assembly.

Product Parameters

Item	Specification
Brand	ABB
Model	REL670 / REL 670
Part Number	1MRK002801-AA
Additional Number	1MYN743301-F
Product Family	Relion 670 Series
Product Type	Line Distance Protection and Control IED
Application	Transmission Line Protection
Protection Functions	Distance, Overcurrent, Earth-Fault and Related Protection
Input Configuration	Configurable CT/VT analog inputs
Communication	Substation Communication / IEC 61850 depending on configuration
Engineering Tool	ABB PCM600
Installation	Substation Protection and Control Panel
Status	Legacy / Existing-System Replacement Component
Condition	Verify actual hardware configuration before installation

FAQ

Q: What is the ABB REL670?

A: REL670 is an ABB Relion 670 series IED designed for transmission-line distance protection and control applications. ABB documentation specifically identifies REL670 as the line distance protection member of the 670 series.

Q: What is the difference between REL670 and RED670?

A: REL670 is primarily associated with line distance protection, while RED670 is the 670-series line differential protection IED.

Q: What does 1MRK002801-AA identify?

A: 1MRK002801-AA is an identifier associated with REL670 technical documentation and configured hardware. The exact hardware configuration should be verified against the complete product label.

Q: What communication functions are available?

A: Depending on the specific REL670 configuration and product version, the 670 series supports multiple Ethernet communication options and IEC 61850-based substation communication. Later 670-series versions also support features including HSR, precision time synchronization and IEC 61850-9-2LE process-bus applications.

Q: What should be checked before replacement?

A: Match the complete REL670 ordering information, hardware revision, CT/VT input configuration, power-supply version, communication modules, firmware requirements and original protection-system configuration before installation.

Recommended ABB Models

1. ABB REL670 | Line Distance Protection IED
2. ABB REL650 | Line Distance Protection IED
3. ABB RED670 | Line Differential Protection IED
4. ABB RED650 | Line Differential Protection IED
5. ABB REG670 | Generator Protection and Control IED
6. ABB RET670 | Transformer Protection and Control IED
7. ABB REC670 | Bay Control IED
8. ABB REB670 | Busbar Protection IED
9. ABB REL615 | Line Protection and Control Relay
10. ABB RED615 | Line Differential Protection and Control Relay