IEEE C37.60/62271-111-2018

C37.60/62271-111-2018 is a technical standard for automatic circuit reclosers used in alternating current systems up to and including 38 kV. It addresses key requirements for components, circuits, devices, and system performance in medium-voltage power applications. For engineers, buyers, and compliance teams, this standard helps define a clear basis for design, evaluation, and procurement of recloser equipment intended to improve system continuity and controlled fault interruption.

Overview of C37.60/62271-111-2018

The C37.60/62271-111-2018 standard focuses on automatic circuit reclosers and the technical expectations associated with their use on AC networks up to 38 kV. It provides a structured reference for understanding how these devices should be designed, rated, and assessed within power and energy systems. In practice, it supports consistent specification of recloser behavior, insulation coordination, and operating characteristics, making it a useful document for product selection and engineering review.

Typical use cases

This standard is commonly relevant in distribution networks where automatic circuit reclosers are used to clear temporary faults and restore service without manual intervention. It may apply to overhead feeder protection, substation-adjacent switching equipment, and utility or industrial power systems operating within the stated voltage range. C37.60/62271-111-2018 is also useful when comparing recloser products, reviewing technical submittals, or aligning equipment requirements with system protection practices.

Why it matters

C37.60/62271-111-2018 matters because reclosers play a direct role in power system reliability, safety, and service continuity. A well-defined standard helps reduce ambiguity during design and procurement, while also supporting more consistent testing and performance expectations. For stakeholders responsible for medium-voltage equipment, it can help limit compatibility issues, improve specification control, and provide a clearer path toward compliant and dependable system operation.

• Automatic circuit reclosers
• AC systems up to 38 kV
• Medium-voltage power applications
• Component and device requirements
• Specification and compliance reference