ACB 3 Pole Air Circuit Breaker 1600A, 2000A, 2500A, 3200A | with Fixed Horizontal Busbar

Voltage rating clarification (YCW3 ACB)

• Main pole (busbar) voltage: 400V AC / 690V AC (rated insulation voltage Ui = 1000V, rated operational voltage Ue = 400V/690V).
• Control circuit / undervoltage trip coil: AC220V (or 110V/24V on order).
• Any "AC220V" sticker on the front face refers to the coil — never the main pole. The ACB switches 3-phase / 4-pole 400V LL (Pakistani LT industrial system) just like any other Pakistani-spec ACB.
• Reference: CNC Electric YCW3 datasheet at cncele.com · standard IEC 60947-2.

Air circuit breaker is the correct choice when the panel has moved far beyond normal MCCB duty and the incoming side needs serious fault protection, isolation and control. CNC Electric Pakistan currently lists this 3 pole fixed horizontal busbar ACB from Rs.285,000 in Pakistan, with visible 1600A, 2000A, 2500A and 3200A options. This is not a small workshop breaker. It belongs in main LT panels, generator synchronization boards, transformer-fed switchboards, large building services, and industrial distribution where heavy current and high fault levels are part of normal design.

Buyers usually reach the ACB stage after the project has outgrown ordinary feeder protection. Once the incomer is this large, panel coordination, busbar layout, control voltage, shutdown logic and fault withstand become critical. That is why this page is written around real ACB buying decisions in Pakistan: where it fits, what the listed configuration actually is, and when a large MCCB is still enough so you do not overspend on the wrong class of breaker.

Key Features

• 3 pole air circuit breaker for high-current AC distribution duty.
• Local listing shows fixed horizontal busbar construction.
• Visible current options on the sale page: 1600A, 2000A, 2500A and 3200A.
• Local page states 400V and 690V service-voltage suitability.
• Local page states 80kA breaking capacity for the listed configuration.
• Control-voltage note on the local page: AC220V.
• Suitable for incomer panels, generator boards and heavy industrial distribution.
• IEC 60947-2 context applies to this ACB class.

Technical Specifications

This description uses only data published on the live local sale page plus limited official YCW3 family information where it genuinely helps explain the ACB class. Exact intelligent-controller subtype, accessory package, auxiliary-contact arrangement, key-lock setup, CT package and full local dimension drawing are not currently listed on the live product page and have not been guessed.

Product Range and Prices

Because this is a heavy industrial breaker family, the final commercial package can vary with current rating, controller type, releases and accessories. The live sale page clearly shows the family options, but it does not cleanly publish a separate visible final price for every selected rating in the page text snippet. For that reason, only the active displayed price is treated as a fixed visible local fact here.

Applications in Pakistan

An air circuit breaker at this level belongs where the incomer is serious. In Karachi, this can mean generator-backed commercial buildings, industrial plants and utility-heavy facilities. In Faisalabad, textile processing and large production units often need robust incomer and busbar protection on the LT side. In Lahore, hospitals, towers, large commercial buildings and factory switch rooms are common ACB territory. The right use case is not “any panel with a big load.” It is the panel where coordination, upstream protection, maintenance isolation and high available fault level justify stepping beyond MCCB territory.

How to Choose the Right Air Circuit Breaker

Air Circuit Breaker vs Alternatives

What This Product Does NOT Protect Against

This air circuit breaker does not replace engineering. It does not by itself solve bad protection coordination, poor busbar design, weak cable sizing, incorrect CT logic, bad generator control sequencing, or an underdesigned panel body. It also does not replace surge protection for sensitive electronics and does not act like a voltage stabilizer. ACB selection must still be coordinated with the whole switchboard design.

For a complete heavy-duty panel, pair the ACB with correctly selected MCCB breakers on feeders, suitable surge protection devices, the right voltage protectors for sensitive auxiliary loads, and proper panel housing or distribution board hardware where relevant.

Installation Guide

1. Confirm first that the panel duty really requires an ACB and that the current frame matches the engineering design.
2. Mount and busbar-connect according to the fixed horizontal configuration and verified panel layout.
3. Check the control-voltage scheme carefully. The local listing notes AC220V control context.
4. Coordinate feeder breakers, metering, interlocks and generator logic before commissioning.
5. Carry out mechanical and electrical checks on the full board before energizing. At this level, commissioning quality matters as much as breaker selection.

Related Products

• Circuit Breakers for the broader protective range across the board.
• ACB Breakers to compare other heavy-current ACB configurations.
• AC MCCB Breakers for outgoing feeders and lower-current distribution stages.
• Changeover Breakers where source-transfer panels are also part of the project.
• Automatic Transfer Switches when generator or dual-source automation is involved.
• Magnetic Contactors for motor-control sections in the same installation.
• Phase Sequence Relays where phase health and rotation matter in large panels.
• MCCB Guide if you are deciding whether the panel really needs an ACB or a large MCCB.
• Types of Circuit Breakers Guide for the complete protection hierarchy.
• Fire Extinguisher Guide for large electrical-panel fire planning.

Frequently Asked Questions

1. What is an air circuit breaker used for?

An air circuit breaker is used on heavy-current AC distribution boards, usually as a main incomer or major distribution breaker where current, control logic and fault duty are beyond ordinary MCCB service.

2. What is the price of this CNC air circuit breaker in Pakistan?

At the time checked, the live local sale page displayed Rs.285,000 on the active selected configuration.

3. Which current ratings are visible on the local page?

The visible local options are 1600A, 2000A, 2500A and 3200A on this 3 pole fixed horizontal listing.

4. When should I choose an ACB instead of an MCCB?

Choose an ACB when the incomer duty, available fault level, control functions and overall switchboard coordination justify that higher breaker class. If the duty is lower, a well-selected MCCB may still be enough.

5. Is this breaker suitable for generator panels?

Yes, large generator and synchronization boards are one of the natural places for an ACB, especially where controlled operation and high-current switching are required.

6. Does the local page show drawout type?

No. The local listing here is specifically described as a fixed horizontal busbar type.

7. Does an ACB replace surge protection or voltage protection?

No. An ACB is a major breaker and protection device for overload, short-circuit and related breaker functions, but you still need separate SPD and voltage-protection strategy for sensitive equipment.

8. Is this a residential breaker?

No. This is a heavy industrial and commercial distribution-class breaker, not a normal residential device.

This air circuit breaker is the right choice when the panel has moved into real incomer and high-current switchboard duty and you need a 3 pole fixed horizontal ACB rather than a feeder MCCB. It suits large generator boards, commercial mains incomers, industrial LT panels and transformer-fed distribution where the current class is serious and coordination matters. For stock status, selected-variant confirmation and project support, contact CNC Electric Pakistan on WhatsApp 0326-1111376. Orders above Rs.10,000 qualify for free delivery.