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ABB REF611 Feeder Protection Relay

Brand/Manufacturer: ABB

Order Number: REF611

Type: Protection Relays

Country of Origin: Sweden

Condition: Original Brand

Lead Time: Available in stock

Payment Term: 100% TT In Advance

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Description

Configured for the protection, control, measurement, and supervision of utility substations and industrial power systems, the ABB REF611, also cataloged as the REF611 Feeder Protection Relay, operates as a dedicated hardware component for directional or non-directional overcurrent and earth-fault protection across utility distribution networks.

Hardware Specifications

Parameter Specification
Model REF611
Brand ABB
Origin Relion product family / 611 series
Weight Compact design for new and retrofit installations
Dimensions Compact withdrawable plug-in unit design
Operating Temp Industrial standard rating
Power Consumption Standard auxiliary supply with optional self-healing communication
Protection Type Directional or non-directional overcurrent and earth-fault protection
Communication Support IEC 61850 Editions 1 and 2, binary GOOSE messaging, optional HSR/PRP
Product Type Feeder Protection Relay

Industrial Control & Drives Characteristics

  • Backplane bus communication velocity Licences: Not applicable; supports advanced Ethernet-based communication including self-healing HSR/PRP using an optional second Ethernet bus.
  • Profinet / EtherNet/IP deterministic networks: Fully supports IEC 61850 Editions 1 and 2, including binary GOOSE messaging for substation automation.
  • I/O density scaling: Features a powerful, user-friendly web-browser-based human-machine interface (HMI) including an input/output (I/O) matrix with visual selections.
  • Firmware flash compatibility: Delivered pre-configured and factory-tested with application-specific standard configurations to minimize setup time.

Frequently Asked Questions

Q: What network configurations are suitable for directional versus non-directional earth-fault protection?

A: Directional earth-fault protection is mainly used in isolated neutral or compensated networks, whereas non-directional earth-fault protection is intended for directly or low-impedance earthed neutral networks.

Q: What design features facilitate swift installation and maintenance of the relay?

A: The relay utilizes a withdrawable plug-in unit design along with a compact form factor that makes it suitable for both new and retrofit installations.

Field Installation Guidelines

Ensure that the panel cut-out and wiring harnesses match the compact withdrawable plug-in unit dimensions prior to insertion. Verify all fiber optic or Ethernet connections when utilizing optional HSR/PRP redundant communication rings. Check current transformer and voltage transformer secondary circuits for correct phase orientation and secure terminal torques before energizing the protection relay.

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Testimonials

Fast Delivery, Excellent Quality


We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.

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Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.

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"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."

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We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.

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