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What is the typical lead time for a custom PLC control panel in India?

Lead time for custom PLC panels typically ranges 4–8 weeks: 1 week for design and drawing approval, 1–2 weeks for component procurement, 2–3 weeks for fabrication and wiring, and 3–5 days for FAT. Complex panels with imported PLC modules or ATEX components may take 10–14 weeks. Always confirm component availability before committing to a delivery date.

What is the difference between a PLC panel and a VFD panel?

A PLC panel uses a Programmable Logic Controller as the central intelligence – it executes control logic, sequences operations, and communicates with HMIs and SCADA systems. A VFD panel uses Variable Frequency Drives to control motor speed and torque. Many industrial systems combine both – the PLC provides process logic while VFDs execute motor speed commands from the PLC.

Which PLC brand is most commonly used in Indian industry?

Siemens S7-1200 and S7-1500 series hold the largest market share in Indian process and discrete manufacturing. Allen-Bradley (Rockwell) is preferred in automotive and FMCG sectors. Mitsubishi FX and Q series are popular in textile and packaging machinery. Delta and Schneider are cost-effective options for price-sensitive applications. Trade4Asia verified manufacturers support all major platforms.

What is Factory Acceptance Testing (FAT) and why is it important?

FAT is a systematic functional test of the completed panel at the manufacturer's facility before dispatch. It verifies all control sequences, alarms, interlocks, and communication protocols work correctly in a controlled environment. FAT eliminates 80–90% of site commissioning issues. Insist on a documented FAT with buyer witness for all critical automation panels – never accept panels without FAT documentation.

What IP rating should I specify for industrial control panels?

IP54 (dust protected, splash proof) is the minimum standard for indoor industrial environments. IP65 (dust tight, water jet proof) is recommended for washdown areas in food and pharma plants. IP66 is required for outdoor installations. ATEX-rated panels for hazardous areas have their own certification requirements beyond IP rating. Trade4Asia manufacturers offer enclosures from IP54 to IP68 depending on application.