VA Selector Switch

About

What is a V/A selector switch? A V/A selector switch is a multi-position rotary cam switch that lets a single panel meter (voltmeter or ammeter) read multiple input sources by mechanically connecting the meter to one source at a time. Pakistani 3-phase panels use a single voltmeter (e.g. YCMV3) with a voltmeter selector switch to read each L-L pair (R-Y, Y-B, R-B) and each L-N pair without three separate meters. Built to IEC 60947-3 , the LW28-20 family covers 20 A volt-selector, 20 A ampere-selector, and 63 A 3-position phase selector configurations. Switch type Positions Use Volt selector 7 (3×LL + 3×LN + OFF) Read all 6 voltage pairs with 1 voltmeter Ampere selector 4 (3 phases + OFF) Read all 3 phase currents with 1 ammeter Phase selector 63 A 0-1-2-3 (4 positions) Select grid / inverter / generator source Pair with YCD9-1 indicator lights + YCMV3 voltmeter for a complete 3-phase panel front. Updated: September 2026 · CNC Electric Pakistan Selector Switch + Motor Control Guides (Updated June 10, 2026) ATS Automatic Changeover Switch Pakistan 2026 Motor Starting Methods — DOL vs Star-Delta vs Soft-Starter vs VFD 3-Phase Contactor Wiring — DOL, Star-Delta, Reversing Switch Board + MCC Buyer Guide VFD Variable Frequency Drive Buyer Guide Best Electrical Equipment Tiers Pakistan 2026 Push Button Collection Magnetic Contactors Collection VA Selector Switch — Pakistan Quick Answer (May 2026) A VA selector switch (Voltmeter / Ammeter selector switch) is the rotary cam switch used on the front of industrial control panels to route the panel's single voltmeter or ammeter between different phases (R-Y-B) and lines for measurement. It's an electrical panel essential — every 3-phase factory main board has 2 of them (one for V, one for A). CNC 2026 prices range from Rs. 450 (panel-mount 16A) to Rs. 2,800 (heavy-duty 63A multi-pole) . Type Positions Application 2026 PKR Voltmeter Selector (VS) 7 positions (RY, YB, BR, RN, YN, BN, OFF) Select phase pair for voltmeter reading 4