IEEE PC37.60/IEC 62271-111_D10, Feb 2012 is an IEC/IEEE draft international standard focused on automatic circuit reclosers and fault interrupters for alternating current systems up to 38 kV. It addresses equipment used in medium-voltage power networks where controlled interruption and automatic restoration are important for service continuity. For utilities and industrial power engineers, this specification helps define the technical framework for design, performance, and compliance around these protective switching devices.

IEEE PC37.60/IEC 62271-111_D10, Feb 2012 overview

This standard sits at the intersection of power distribution equipment and protective switching practice. IEEE PC37.60/IEC 62271-111_D10, Feb 2012 provides draft international requirements for automatic circuit reclosers and fault interrupters used on AC systems up to 38 kV. Its technical context is the coordination of fault clearing, reclosing behavior, and operational consistency in medium-voltage applications. The document is relevant where equipment must interrupt faults, reduce outage duration, and support repeatable engineering and testing expectations.

Typical use cases

This technical document is commonly used when specifying reclosers and fault interrupters for overhead distribution feeders, substation-connected circuits, and other medium-voltage network segments. It is relevant to utilities, industrial campuses, and infrastructure operators that need controlled fault interruption with automatic reclosing capability. IEEE PC37.60/IEC 62271-111_D10, Feb 2012 may also support procurement and engineering review for equipment intended for alternating current systems up to 38 kV, especially where protection settings and device behavior must align with system coordination.

Why this standard matters

In practice, the standard helps reduce ambiguity around how automatic circuit reclosers and fault interrupters should be designed, evaluated, and applied. That matters for safety, reliability, and consistent performance in power and energy systems. Using IEEE PC37.60/IEC 62271-111_D10, Feb 2012 can support clearer procurement language, more dependable testing criteria, and better alignment between utility requirements and equipment capabilities. It also helps engineers compare products on a more consistent technical basis.

• Automatic reclosing behavior
• Fault interruption for AC systems up to 38 kV
• Medium-voltage distribution equipment
• Engineering and procurement reference
• Performance and compliance alignment