What each type does
A manual changeover switch (cam or rotary) lets an operator select mains or generator without backfeeding. Someone must be present to turn it. An automatic changeover switch (often part of an ATS / automatic transfer setup) senses loss of utility and transfers load without a person at the board — common on critical loads and some commercial sites.
GlobalPlus regularly stocks EP-series cam switches (40A, 63A), OPAS rotary cam selectors, and SF 219G modular changeovers with copper contacts. Automatic units are a different product class — ask on WhatsApp whether stock is available for your amp rating before you assume ATS hardware is on the shelf.
How to choose for a Lahore generator board
Homes and small shops with an attentive operator often use manual changeover — lower complexity and cost. Clinics, server rooms, and unmanned sites may need automatic transfer designed by an electrician or consultant.
Match amp rating and poles to the feeder. See our changeover switch buying guide for sizing and copper-contact basics, and cam-vs-changeover if you are comparing cam hardware to rotary styles.
Ordering from GlobalPlus
Message load amps, poles, manual vs automatic preference, and a panel photo if possible. We quote manual changeovers reliably; for automatic changeover switch requests we confirm current stock or alternatives in the same chat.
Combine with MCBs and cable when building a full backup board so one conversation covers the list.
Frequently asked questions
- Do you stock automatic changeover switches?
- Ask on WhatsApp — availability varies. We always carry manual EP-series cam switches and OPAS selectors for generator boards.
- Is automatic safer than manual?
- Safety depends on correct design and installation. Automatic reduces human delay; both need proper interlocks against backfeeding. Follow your electrician’s design.
- What amp rating should I buy?
- Match the feeder design — do not guess. Share load notes on WhatsApp for a GlobalPlus recommendation within our stocked range.
Related categories
Related products
Send load amps, poles, and whether you need manual or automatic transfer — WhatsApp GlobalPlus for a recommendation.
Ask on WhatsApp