Product Core Brief
- Model: REF620 (Specific Configuration: REF620-5BMNAAABNHC8BNS11G)
- Brand: ABB
- Series: Relion 620 Series
- Core Function: High-density feeder protection, control, metering, and supervision for utility and industrial substations.
- Type: Digital Microprocessor-Based Protection Relay
- Key Specs: Multi-breaker control capability, high-density programmable binary I/O, native Ethernet substation bus.
- Condition: New Original (New Surplus), not refurbished
Product Introduction
Field observations from complex multi-breaker substation retrofits show that handling extensive control logic requires substantial I/O density on the protection deck. The ABB REF620 numerical protection relay answers this demand within the Relion family, providing expanded feeder protection, control, and multi-channel voltage monitoring. Serving as an advanced intelligence hub for complex ring-bus or breaker-and-a-half configurations, this specific unit manages localized fault isolation while executing fast automated transfer logic across separate breaker sections.
When engineering teams need to swap out a high-density utility management node under strict timeline constraints, deploying this pre-configured surplus unit eliminates production backlogs. The internal processor executes complex numerical protection schemes compliant with international utility guidelines, pushing typical breaker trip execution times under 30 ms for instantaneous elements. Procurement agents must verify the extensive alphanumeric configuration suffix on the chassis plate to guarantee binary control voltage threshold alignment before attempting site integration.
