Enclosed Changeover Switch

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What is a changeover switch EP (cam type)? A cam-type changeover switch (EP series) is a rotary multi-position panel-mount switch with stepped cam discs that mechanically sequence multiple contacts — used as manual transfer switches between grid, generator, and inverter sources. Pakistani residential and commercial panels use the EP family at 2P / 3P / 4P with 32 A, 63 A, 100 A ratings; positions 0-1-2 (3-position) or 0-1-2-3-4 (5-position multi-source). Built to IEC 60947-3 . Poles Amp Use 2P 32 A / 63 A 3-pos 0-1-2 Single-phase home grid / gen 4P 63 A / 100 A 3-pos 0-1-2 3-phase commercial / factory 4P 63 A 5-pos 0-1-2-3-4 Grid + Gen + Solar + UPS For automatic transfer (motorised), see ATS . For breaker-type changeover, YCBZ family . Updated: September 2026 · CNC Electric Pakistan Enclosed Changeover Switch Guides (Updated June 10, 2026) ATS Automatic Changeover Switch ATS Wiring Diagram + Installation Cost Automatic Changeover Switch Price 2026 Changeover Switch Manual vs Auto vs ATS Rotary Changeover Switch EP Series Hybrid vs On-Grid vs Off-Grid Solar Inverter Switch Board + MCC Buyer Guide Best Electrical Equipment Tiers Pakistan 2026 Ensure safe and reliable switching between main power supply and backup source with the EP Series Changeover Switch from cncelectric.pk . Designed for residential, commercial, and industrial applications , this switch provides manual control for seamless power source transfer , protecting your equipment and maintaining uninterrupted operation . What is an EP Series Changeover Switch? The EP Series Changeover Switch is a manual transfer device that allows users to safely switch between two power sources , such as the main grid and a backup generator . It ensures that only one source is connected to the load at a time , preventing back-feed, electrical hazards, and equipment damage. Key Features: Safe Power Source Switching: Prevents simultaneous connection of main and backup sources. 3-Phase & Neutral Isolation: 4-pole design