3 Phase Magnetic Contactor 12A, 18A, 25A, 32A, 40A, 50A, 65A, 80A, 95A, 160A, CJX2s | NO/NC Coil Voltage Control

Magnetic contactor is the backbone of a proper motor starter panel. This CNC CJX2s 3-phase AC magnetic contactor range covers 12A to 160A, which makes it useful from small pumps to serious industrial feeders. If you are still switching motors manually or through light-duty switches, you are asking for burnt contacts, nuisance faults and unsafe operation.

Key Features and Specifications

The official CJX2s family description states that it is suitable for starting and controlling AC motors frequently and for switching circuits at a distance. That is exactly why contactors exist. They let you keep high power in the main poles and keep the operator on a safer, lighter control circuit.

Technical Specifications

In Pakistani industrial practice, the contactor is usually the piece everyone sees but only a few size properly. People remember motor horsepower but forget full-load current, starting duty and coil voltage. That is why the same panel keeps failing every summer. Correct contactor selection stops that cycle.

Product Range and Models

The wide ampere spread on this listing is useful because you can standardize one brand across multiple panels. That helps maintenance teams. A plant with mixed unknown brands wastes time hunting coils and auxiliaries during breakdowns.

Applications in Pakistan

Sites in Lahore, Karachi, Islamabad, Rawalpindi, Faisalabad, Peshawar and Sialkot use these daily for bore pumps, air compressors, HVAC air handling units, ring frames, loom auxiliaries and small processing machines. The contactor is simple, but its job is serious. Bad switching creates heat. Heat creates downtime.

Sizing and Selection Guide

CNC vs Competitors

A proper contactor is cheaper than one burnt motor starter shutdown. Compare not only price but coil availability, auxiliary compatibility and how easily it pairs with overload relay settings your electrician can actually understand.

What This Product Does NOT Protect Against

• A contactor does not provide overload protection by itself. Pair it with a thermal relay.
• It does not replace a feeder circuit breaker or fuse.
• It does not protect against wrong phase sequence, low voltage or phase failure unless the control scheme includes those functions.
• It does not fix an undersized motor, jammed mechanical load or weak cable termination.

If you want a real motor starter, treat the contactor as one part of a system. Feeder breaker, overload relay, phase protection and clean control wiring are all part of the same answer.

Installation Guide

• Select the contactor from motor full-load current and duty, not just from guesswork or the motor’s local nickname.
• Confirm the coil voltage before order. A 220V coil and a 24V coil are not interchangeable mistakes.
• Pair the contactor with a correctly matched thermal relay and an upstream breaker.
• Wire start-stop control using suitable push buttons, auxiliary contacts and interlocks where required.
• Tighten terminals correctly and recheck after commissioning because loose lugs are a major cause of panel heating.

For reversible, forward-reverse or interlocked duty, add correct auxiliary interlocking and mechanical logic. Never let two contactors close against each other in a badly wired panel.

Related Products

Most failures in Pakistan happen because one device is installed in isolation. A proper panel uses coordinated products. These links help you build the right combination instead of guessing on site.

• Magnetic contactors collection — See the full industrial switching range.
• Thermal relays — Mandatory partner for motor overload protection.
• Circuit breakers — Protect the incoming feeder to the starter.
• Phase sequence relay — Protect 3-phase motors from reverse phase and loss conditions.
• Push buttons — Build proper start-stop stations instead of unsafe switching.
• Industrial products — See timer relays, switches and panel items.
• Selector switches — Useful for panel indication and control modes.
• SPD collection — Protect starter panels from surge damage.
• Types of circuit breakers guide — Useful when building a complete motor panel.
• Fire extinguisher — Motor starter panels should always include electrical fire protection.

Frequently Asked Questions

What is the difference between a contactor and a relay?

A contactor is meant for switching higher-power loads, especially motors. A small relay is for control logic and lighter-duty switching.

Can I run a motor without a thermal relay if I have a contactor?

No. The contactor switches. The thermal relay protects against overload and phase-failure conditions.

How do I choose 12A, 18A, 25A or 32A?

Start from the motor full-load current, duty type and supply voltage. Do not select only by pump name or rough horsepower memory.

Why is the coil voltage important?

Because the control circuit must energize the coil correctly. If you buy the wrong coil voltage, the contactor will not operate safely.

Can this be used for a DOL starter?

Yes. That is one of the main uses. Pair it with a thermal relay, breaker and push buttons.

Why do contactors burn or chatter in Pakistani panels?

Low control voltage, loose wiring, poor coil selection, dust, heat and overloaded application are common reasons.

Can I use a contactor for capacitor switching?

Not a normal motor-duty contactor for repeated capacitor switching. Use a proper capacitor-duty arrangement.

Where are these contactors commonly used?

Pump panels, compressor starters, machine tools, textile auxiliaries, HVAC systems and conveyors.

Final Word

CNC CJX2s magnetic contactor is available from CNC Electric Pakistan with nationwide delivery in Lahore, Karachi, Islamabad, Rawalpindi, Faisalabad, Peshawar and Sialkot. Orders above Rs.10,000 qualify for free delivery. For sizing help, panel coordination, or bulk project pricing, WhatsApp 0326-1111376 before you place the order.