Voltmeter Selector Switch 20A | Monitoring

Voltmeter selector switch is the practical panel device used when one voltmeter has to read more than one voltage point inside the same board. On CNC Electric Pakistan, the live selector-switch range currently shows the voltmeter selector switch at Rs.1,300 in a 20A version. That makes it a useful control-panel component for electricians, panel builders, generator-board fabricators, and industrial maintenance teams who want cleaner voltage monitoring without adding multiple separate panel meters.

This is not a breaker, and it is not a voltage protector. Its job is measurement selection. In a three-phase panel, you may want one meter to read different phase combinations or selected monitoring points. A proper selector switch gives that control in a tidy, repeatable way. For Pakistan work, that matters in factory panels, generator boards, workshop starter panels, school and hospital distribution rooms, and commercial building services boards where voltage needs to be checked quickly and correctly.

Key Features

One useful distinction: this product is for voltage monitoring selection, while the nearby ampere selector switch range is for current measurement selection. If the panel meter is a voltmeter, you choose this style. If the panel meter is an ammeter, you choose the ampere selector. That sounds basic, but many mixed supplier listings blur these devices together and create confusion at ordering stage.

Technical Specifications

This description uses only data published on the live local sale page plus limited official LW28 family information where it clearly helps identify the switch class. Exact station count, internal contact arrangement, terminal numbering, panel cut-out dimensions, and drawing details for this exact local variant are not currently listed and have not been guessed.

Product Range and Price Position

Price-wise, this is not a big-ticket item. Selection accuracy matters more than the amount on the invoice. Ordering the wrong meter selector wastes time because the panel cut-out may already be done, the labeling may already be printed, and the commissioning team may be waiting for the right part.

Applications in Pakistan

Voltmeter selector switches are common in panels where one analog or digital voltmeter is used to observe different incoming or outgoing voltage points. In Lahore commercial buildings, that often means generator and utility monitoring inside changeover or ATS-related boards. In Faisalabad factories, it can mean quick phase-voltage checking in production and utility rooms. In Karachi workshops, it is often used in starter panels, compressor boards, and distribution panels where a voltmeter needs to display selected phase combinations without fitting multiple separate meters.

How to Choose the Right Selector Switch

Voltmeter Selector Switch vs Alternatives

What This Product Does NOT Protect Against

This selector switch does not protect against overload, short circuit, under-voltage, over-voltage, surge, earth leakage, or backfeed. It is not a breaker, not a fuse, not a voltage protector, and not a transfer switch. Its purpose is to route a measurement circuit so the operator can choose what the voltmeter is reading.

If the panel also needs real protection, add the correct circuit breakers, surge protection devices, voltage protectors, RCBO/RCCB protection, or the right MCCB breakers depending on the board.

Installation Guide

1. Confirm first that the panel needs a voltmeter selector, not an ammeter selector and not a changeover switch.
2. Follow the panel designer’s measurement diagram so the selected positions match the required voltage points.
3. Label the front positions clearly. A selector switch without correct labeling confuses technicians and defeats the purpose.
4. Mount it rigidly in the panel front or meter section so switching feels positive and repeatable.
5. Before energizing, verify the meter reads the intended point in each position and that no wrong cross-reading occurs.

Related Products

• Selector switches for the full CNC selector range, including ammeter selection.
• Indicator lights to show supply presence and selected phase status.
• Energy meters if the panel needs kWh or multifunction monitoring in addition to selector-based readings.
• DB boxes for the enclosure side of the panel build.
• Changeover breakers if the board also needs manual source transfer.
• EP changeover switches when panel-source switching, not meter selection, is the real requirement.
• Automatic transfer switches where changeover must happen automatically.
• Surge protection devices because measurement circuits inside panels still benefit from surge control.
• Voltage protectors if the panel is guarding appliances or sensitive loads against WAPDA fluctuations.
• Voltage protector finder tool if you are also selecting protection hardware for the same job.
• Changeover breaker guide if the customer is mixing up meter selection with source transfer.
• Types of circuit breakers guide for the protection side of the panel.
• Circuit breakers for upstream protection around the metering section.
• Magnetic contactors if the panel also controls motors or larger loads.
• Fire extinguisher products as the final panel-safety add-on.

Frequently Asked Questions

What is a voltmeter selector switch used for?

It is used to let one panel voltmeter read more than one voltage point. Instead of installing multiple separate voltmeters, the operator changes the selector position and checks the required reading.

What is the current price of this voltmeter selector switch in Pakistan?

At the time checked, CNC Electric Pakistan was showing this voltmeter selector switch at Rs.1,300.

Is this the same as an ammeter selector switch?

No. The voltmeter selector switch is for voltage measurement selection. The ammeter selector switch is for current measurement selection. They belong to the same selector family but serve different meter circuits.

Can this switch replace a changeover switch?

No. A changeover switch transfers a load between sources. This selector switch only routes a measurement circuit for a voltmeter.

Can I use this in a generator panel?

Yes, provided the panel design specifically needs a voltmeter selector for monitoring the required voltage points. It is common in generator, mains, and utility monitoring sections.

Does this selector switch protect against over-voltage?

No. It does not provide voltage protection. If protection is needed, add a proper voltage protector or other suitable protection device.

Is this a DIN-rail device?

The live local sale page does not clearly publish the exact mounting format for this specific variant, so that should be confirmed at order stage if the panel cut-out or mounting method matters.

Why should I buy CNC instead of a generic rotary selector?

Because a selector switch is a panel-logic component, not just a cheap knob. Wrong selection, weak labeling, poor feel, or bad application matching can create confusion during commissioning and maintenance. CNC’s selector-switch family is a known panel-control line rather than random generic stock.

This voltmeter selector switch is the right buy when a panel needs clean, simple voltage measurement selection instead of multiple separate meters. It suits control panels, generator boards, utility rooms, commercial distribution boards, and industrial maintenance panels across Pakistan where technicians need clear voltage monitoring without unnecessary clutter. For current stock, technical clarification, and order support, contact CNC Electric Pakistan on WhatsApp 0326-1111376. Orders above Rs.10,000 qualify for free delivery.