Automatic Transfer Switches

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What is an automatic transfer switch (ATS)? An automatic transfer switch (ATS) detects loss of utility power and automatically transfers the load to a backup source — generator, solar inverter, or UPS — then transfers back when the utility returns. A manual transfer switch (MTS / changeover) does the same thing under hand operation. In Pakistan, the YCQ family covers 2P/3P/4P, 16–630 A, 230/400 V AC , IEC 60947-6-1 compliant. Transfer time is typically 2–6 seconds for utility-to-generator and milliseconds for solid-state STS. Type Mechanism Use MTS / Changeover Manual lever Home / small shop ATS (motorised) Motorised contactor pair, 2–6 s Office / clinic / factory STS (solid-state) Thyristor, <10 ms Data centre / sensitive UPS CNC Electric Pakistan stocks YCQ1B, YCQR and YCQ4 ATS/changeover families IEC 60947-6-1 certified for 2P/3P/4P loads. Updated: September 2026 · CNC Electric Pakistan ATS Changeover Switch Buying Guides (Updated June 10, 2026) ATS Automatic Changeover Switch Price Pakistan 2026 ATS Wiring Diagram + Installation Cost Automatic Changeover Switch Price 2026 Hybrid vs On-Grid vs Off-Grid Solar Inverter Best Electrical Equipment Tiers Pakistan 2026 Switch Board + MCC Buyer Guide Tubewell Motor Protection Bundle NEPRA 2026 Net-Metering Equipment Checklist Automatic Transfer Switch (ATS) — Pakistan Quick Answer (May 2026) An Automatic Transfer Switch in Pakistan transfers electrical load from WAPDA / K-Electric mains to a backup generator or solar inverter automatically within 50–200 milliseconds of detecting power failure. Current CNC 2026 PKR prices range from Rs. 6,200 (2P 63A YCQ4) for small homes to Rs. 89,000 (4P 630A YCS1) for commercial loads. Generator / Load Recommended CNC Model 2026 Price (PKR) Up to 5 kVA single-phase YCQR 2P 63A 6,300 5–15 kVA single-phase YCQ4 2P 100A 6,200 15–30 kVA 3-phase YCQ1B 4P 63A 8,200 30–100 kVA 3-phase YCQ4 4P 100A 7,200 100–300 kVA commercial YCS1 4P 200–630A 18,500–89,000 Solar DC inverter switching YCQ4

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