IEEE PC37.60-IEC_62271-111 is an IEC/IEEE draft international standard for automatic circuit reclosers and fault interrupters used in alternating current systems up to 38 kV. It provides a technical reference for equipment intended to interrupt and restore service after temporary faults, helping align design and testing expectations in power, energy, and industrial applications. For utilities, manufacturers, and engineers, IEEE PC37.60-IEC_62271-111 supports clearer product definition and more consistent evaluation of medium-voltage switching equipment.

About IEEE PC37.60-IEC_62271-111

This standard focuses on the requirements and terminology surrounding automatic circuit reclosers and fault interrupters within AC distribution systems up to 38 kV. As an IEC/IEEE draft international standard, it is intended to help coordinate technical practice across related equipment specifications, performance expectations, and verification methods. IEEE PC37.60-IEC_62271-111 is relevant when selecting or comparing devices that must operate reliably in fault-clearing and service-restoration duties on medium-voltage networks.

Where is IEEE PC37.60-IEC_62271-111 used?

IEEE PC37.60-IEC_62271-111 is commonly applied in medium-voltage distribution environments where automatic reclosing and fault interruption are part of network protection strategy. Typical use cases include overhead feeders, substation-adjacent switching points, and industrial power systems that depend on controlled fault response. It is also useful for equipment procurement and engineering review when specifying reclosers or fault interrupters for alternating current systems up to 38 kV, especially where consistent technical documentation matters.

Importance in practice

In practice, IEEE PC37.60-IEC_62271-111 helps reduce ambiguity in design, testing, and procurement for switching devices that must handle transient and temporary faults. Clear technical alignment can improve safety, support consistent performance expectations, and make compliance reviews more straightforward. For manufacturers and buyers, the standard also helps compare products on a common basis, which can lower integration risk and support better coordination across power system protection requirements.

• Automatic circuit reclosers
• Fault interrupter requirements
• AC systems up to 38 kV
• Medium-voltage distribution applications
• Design, testing, and compliance reference