Low Voltage Shunt 220V 15KVAr, 25KVAr, 50KVar Power Capacitor | Reliable Reactive Power Compensation

Power factor capacitor is the simple, proven fix when a factory bill starts showing weak power factor and your motors keep dragging useless reactive load through the panel. This CNC BSMJ listing covers 15 kVAr, 25 kVAr and 50 kVAr low-voltage capacitor steps for 0.44 kV class duty, with live Pakistan pricing already shown on the product page. It suits capacitor banks, APFC panels and manual PF correction where you need a known kVAr step instead of trial-and-error buying.

Key Features and Specifications

For this product, the live Pakistan page already gives the three things buyers care about first: the kVAr step, the physical size and the actual sale price. CNC’s official BSMJ family data then adds the installation limits installers normally check before putting a capacitor inside an APFC bank or fixed correction panel.

Technical Specifications

This description uses only data published on the live product page and official CNC BSMJ family information. Exact microfarad values, rated current by local 0.44 kV listing, harmonic-duty suitability and detuned-reactor matching are not separately listed on the Pakistan product page and have not been guessed.

Product Range and Models

The price jump from 15 to 50 kVAr is not cosmetic. You are buying a much larger reactive power step for a heavier motor base. If your panel only needs one correction step for a smaller workshop load, the 15 kVAr unit is the sensible buy. If you are correcting a more serious inductive load in a textile line, compressor room or mixed industrial panel, the larger steps make more sense.

Applications in Pakistan

Most buyers do not have a capacitor problem. They have a power factor problem. That usually shows up as a poor PF reading on the meter, unnecessary reactive burden on the transformer, extra current in the feeder and an APFC panel that is either undersized or poorly stepped. The real job of this product is to give the panel designer a clear correction block that can be switched by the right contactor and protected by the right breaker.

Sizing and Selection Guide

Do not buy capacitor kVAr by guesswork. Check your existing PF, running kW and switching pattern first. The table below is only a practical starting point for buyers who need a quick sense of direction before final panel sizing.

CNC vs Competitors

What This Product Does NOT Protect Against

A power factor capacitor does not replace a breaker, SPD, thermal overload relay or voltage protector. It will not stop short circuit current. It will not save a motor from overload. It will not protect a feeder from lightning or switching surge. It will not cure harmonic distortion by itself. It also does not replace proper APFC logic. If your site has frequent surge events, add an SPD. If the capacitor bank uses switched steps, use the right contactor. If the feeder needs branch protection, use the right circuit breaker.

Installation Guide

1. Confirm your target PF and required correction step before selecting 15, 25 or 50 kVAr. Do not size the capacitor from guesswork or from motor HP alone.
2. Mount the unit inside a properly ventilated capacitor bank or APFC panel. Leave clean spacing so heat does not build up around the can.
3. Use a capacitor-duty switching device, not an ordinary undersized contactor. This matters because capacitor switching current behaves differently from a plain motor load.
4. Provide upstream protection and, where the site has harmonics, review whether detuned reactors or a different correction design are needed.
5. After installation, check PF improvement on the meter and verify that the capacitor step enters and exits cleanly without abnormal heating, bulging or nuisance switching.

Related Products

• Magnetic Contactors — capacitor steps must be switched with the right contactor, especially in APFC panels.
• Circuit Breakers — upstream breaker protection is still required for feeder and panel safety.
• Surge Protection Devices — useful where the capacitor bank sits near a DB or exposed industrial feeder.
• Industrial Products — browse panel and control hardware commonly bought with PF correction components.
• Types of Circuit Breakers — useful if you are also planning branch or incomer protection for the correction panel.
• SPD guide — good read if the capacitor bank sits in a surge-prone industrial area.
• Electrical panel fire safety guide — capacitor banks and APFC panels should never ignore panel fire protection.
• Fire Extinguisher — the final add-on for switchgear and capacitor-bank safety.

Frequently Asked Questions

1) Is this a full capacitor bank or just the capacitor unit?

This listing is for the capacitor unit itself. A full capacitor bank or APFC panel also needs switching, protection, enclosure design and proper control logic.

2) Which size is better for a small factory, 15 kVAr or 25 kVAr?

That depends on your running load and current PF. If you only need one smaller correction step, 15 kVAr is often the safer start. If the plant has a stronger inductive load base, 25 kVAr may be more practical.

3) Can I use the 50 kVAr unit in a small workshop just because I want stronger correction?

Do not oversize it blindly. Too much correction can cause its own problems. Match the capacitor step to measured load and target PF.

4) Does this capacitor reduce my electricity bill directly?

It reduces reactive burden and improves power factor. Whether that turns into a visible bill benefit depends on how your site is metered, how poor the present PF is, and how the overall panel is designed.

5) Can this be switched with an ordinary motor contactor?

Use the correct capacitor-duty switching arrangement. Capacitor switching duty is different from plain motor duty, and the wrong switching device can shorten life.

6) Is this suitable for APFC panels?

Yes, that is one of the normal use cases. The exact step arrangement still depends on the PF controller strategy and the load profile of the site.

7) Can I use this where VFDs and harmonics are present?

Maybe, but not without checking the harmonic condition first. On harmonic-heavy sites, a plain capacitor step may need detuning or a different compensation approach.

8) What does self-healing mean in simple words?

It means the capacitor family is designed so a small local dielectric fault does not automatically become total failure. That is one reason self-healing capacitors are preferred in proper correction panels.

If you need a power factor capacitor for a workshop panel, APFC bank or factory feeder, this CNC BSMJ listing gives you three clear steps with live Pakistan pricing already visible: 15 kVAr, 25 kVAr and 50 kVAr. Use the right step, pair it with the right switching and protection hardware, and do not guess the site requirement. Orders above Rs.10,000 qualify for free delivery. For selection help, WhatsApp 0326-1111376.

See also: Capacitor Banks