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Type SBF-1 Circuit Breaker Failure Relay Instruction … inputs (such as the 52a contact) may be used where the fault current is insufficient to operate the current detector. The relay

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ABB Inc.4300 Coral Ridge DriveCoral Springs, Florida 33065Telephone: +1 954-752-6700Fax: +1 954-345-5329www.abb.com/substation automation

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ABB