RER620

Overview

RER620 is an ABB advanced recloser protection and control relay designed for feeder automation and fault management.

Identification

• Product No.: RER620

• Type: Advanced Recloser Protection and Control Relay

• Manufacturer: ABB

Dimensions

• Width (frame): 10.32" (262.2 mm)

• Width (case): 9.69" (246 mm)

• Height (frame): 6.97" (177 mm), 4U

• Height (case): 6.30" (160 mm)

• Depth (case): 7.91" (201 mm)

Power Supply

• Nominal voltage (Vn): 60 V DC

• Variation range: 30–72 V DC (50–120% of Vn)

• Start‑up threshold: 48 V DC (60 V × 80%)

• Burden (auxiliary supply): < 6.9 W nominal / 13.3 W max

• Ripple tolerance: Max 12% of DC value (at 2 × fn Hz)

• Interruption tolerance: 50 ms at 60 V DC without reset

• Fuse type: T4A / 250 V

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