Changeover Switch Price Pakistan 2026

Changeover Switch Price in Pakistan 2026 — Buyer's Guide

A changeover switch — also called a changeover breaker, transfer switch, or generator switch — physically transfers your home or business load between two power sources (WAPDA mains and a generator, or grid and solar inverter). In Pakistan's reality of daily load-shedding and net-metering, it is the single most important switching device in any backup setup. CNC Electric stocks the YCBZ-63 series in 1-pole, 2-pole, 3-pole and 4-pole configurations from 63 A to 125 A, priced from Rs. 600.

Every CNC changeover switch is built on DIN-rail breaker housings with full mechanical interlock (so both sources can never close at once), IEC 60947-3 compliance, and a 5-year warranty. Stocked locally in Lahore with same-day dispatch nationwide.

CNC Changeover Switch Price Table — Pakistan 2026

Free delivery across Pakistan. 5-year warranty. Bulk & dealer pricing — WhatsApp +92 326 1111376.

Looking for the fully automatic version (Automatic Transfer Switch)? See CNC ATS — Automatic Transfer Switch instead.

Manual vs Automatic Changeover Switch — Which One Do You Need?

This is the first decision. A manual changeover switch is a breaker-style toggle: you walk to the DB box and physically flip from mains to generator. An automatic changeover switch (ATS) senses power loss, signals the generator to start, and transfers the load — no human intervention.

For most Pakistani homes with a manual-start generator, the YCBZ-63 2P 63 A at Rs. 1,500 is the right answer. Step up to the 4-pole 100 A version if you have a 3-phase connection, or move to a full ATS if your generator has auto-start.

How a Changeover Switch Works

Inside a changeover switch are two ganged breakers connected by a mechanical interlock. Position A closes the mains side and opens the generator side. Position B does the opposite. The interlock physically prevents both sides from closing simultaneously — without this, you would back-feed the dead WAPDA line (a lineman-killer fault) or short the generator output against live mains.

The switch handles the switching, not the protection. You still need an MCB or MCCB upstream to handle overload and short-circuit faults. The changeover sits between two breaker banks: one for the WAPDA input, one for the generator input. This is why electricians refer to it as a "switching device, not protection device" — its only job is to route load to one source at a time, safely.

2-Pole vs 3-Pole vs 4-Pole — Picking the Right Configuration

1-Pole (Rs. 600): Switches only the live conductor. Neutral stays connected to one source permanently. Cheapest option but limited — never use where the neutral can rise above ground potential (i.e., never with portable inverter generators).

2-Pole (Rs. 1,500 – 4,000): Switches both live and neutral. Standard for single-phase home and shop installations. Buy this one unless you have a specific reason not to.

3-Pole (Rs. 1,900): Switches all three live phases. Common in older 3-phase industrial setups with a fixed common neutral. Cheaper than 4-pole but offers no neutral isolation between sources.

4-Pole (Rs. 2,500 – 8,500): Switches three live phases plus neutral. Required for any 3-phase installation with separately-derived neutrals — which means any installation where the generator's neutral is bonded to its own earth (almost all modern gensets). Also mandatory for TT and TN-S earthing systems per Pakistan Electrical Code.

Amperage Selection — 30 A, 63 A, 100 A, or 125 A?

Match the changeover switch rating to your main incoming breaker, not your generator. Here is the sizing matrix for typical Pakistani loads:

If your generator is much smaller than your mains breaker (e.g., 3 kW genset on a 20 kW mains), size the changeover to the larger of the two — so it can handle full mains current when on grid.

Changeover Switch vs ATS — When Each Is Right

The terminology overlaps confusingly in Pakistan. Clarifying:

• Changeover switch / changeover breaker: Manual, breaker-style, mechanical interlock. Rs. 600 – 8,500.
• Automatic changeover switch: Same form factor but with internal contactor + control board. Rs. 18,000 – 40,000.
• ATS (Automatic Transfer Switch): Full panel-mount unit with voltage sensing, gen-start signal, and time delays. Rs. 30,000 – 90,000.

Use a manual changeover if your generator is started by hand (pulling a cord or pressing a starter button). Use an automatic version (ATS) if your generator has an auto-start panel, or if you need transfer during off-hours when nobody can flip a switch. Hospitals, server rooms, and 24-hour factories always need ATS; homes and shops rarely do. Browse CNC ATS Switches for the auto-start range.

Where to Install Your Changeover Switch

Home (single-phase): Mount the YCBZ-63 2P 63 A in the main DB box, downstream of the WAPDA main MCB and the generator output MCB. Both inputs feed the changeover, output goes to the home distribution bus.

Commercial / shop: Same configuration but typically 100 A 2-pole. Mount in the main panel; ensure adequate cabling on both sides (≥ 25 mm² copper for 100 A).

3-phase factory: YCBZ-63 4-pole 100-125 A at the main panel. Always switch neutral. Lock-off facility recommended for maintenance isolation.

Solar hybrid: Mount on the AC output side of the inverter, between inverter output and home bus, so you can manually bypass to WAPDA in case of inverter fault. Or on the inverter input side if you want hard isolation between grid and inverter.

Top Picks by Use Case

Best for Home with One AC: YCBZ-63 1P 63 A. Rs. 600 — cheapest entry point if you only need live-side switching. View product →

Best Value (Home / Shop, Single Phase): YCBZ-63 2P 63 A. Rs. 1,500 — the right answer for 80% of installations. Live + neutral switching, 63 A handles most home loads. View product →

Best for Larger Homes: YCBZ-63 2P 100 A. Rs. 4,000 — for homes with 3+ ACs or solar hybrid. View product →

Best for 3-Phase Without Neutral: YCBZ-63 3P 63 A. Rs. 1,900 — older industrial setups. View product →

Best for Factory: YCBZ-63 4P 100 A or 125 A. Rs. 5,500 – 8,500. Full 3-phase + neutral, IEC 60947-3 compliant. View product →

CNC vs Clopal vs Opas vs Millat — Brand Comparison

CNC offers the longest warranty (5 years) in the value tier. Millat (rotary cam-style) is the cheapest local option but uses a rotary mechanism rather than the breaker-style design, which makes service replacement more complex. Schneider is premium but 4-5× the price.

Types of Changeover Switch

1. Breaker-type (DIN-rail): Two MCB-style breakers ganged together with mechanical interlock. CNC YCBZ-63 series. Compact, DB-box friendly, easy to replace.

2. Rotary cam: Single body with a rotary handle that moves contacts between three positions (mains, off, generator). Common in Millat, Opas. Bulkier but visible position indication.

3. Knife-switch: Older industrial double-throw knife switches with bare blades. Largely obsolete for safety reasons; still found in legacy installations.

4. Automatic (ATS): Adds voltage sensing, time delays, and a contactor. See CNC ATS range.

5. Solar/hybrid changeover: Identical to breaker-type but rated for DC operation in some inverter-input configurations. Use AC-rated changeovers (YCBZ-63 series) for AC-side switching only.

Installation Wiring — Single-Phase Home

1. Switch OFF both the WAPDA main MCB and the generator output MCB.
2. Mount the YCBZ-63 2P on the DIN rail of the main DB box, between the two input MCBs and the home distribution bus.
3. Wire the WAPDA Live + Neutral to the top-left input pair. Wire the Generator Live + Neutral to the top-right input pair.
4. Wire the output Live + Neutral (bottom terminals) to the home distribution bus.
5. Confirm the toggle handle has clearly labelled positions (MAINS / OFF / GEN).
6. Restore the WAPDA main MCB. With the changeover in MAINS position, verify home power. Switch the changeover to GEN position — home power should drop. Start the generator and verify home power returns when in GEN position.
7. Always return to MAINS position when the generator is off, so the system is ready for the next outage.

For 3-phase installations, the wiring follows the same pattern with three lives plus neutral (4-pole) or three lives only (3-pole).

Bulk & Dealer Pricing

CNC YCBZ-63 changeover switches are stocked locally in Lahore with same-day dispatch to Karachi, Islamabad, Faisalabad, Multan, Peshawar, and Quetta. Bulk pricing (10+ units) and dealer / contractor rates available. Solar installer bundles (changeover + DC breaker + SPD + voltage protector) priced separately. WhatsApp +92 326 1111376 with your project requirement.