Switchgear & Protection

MCB (Miniature Circuit Breaker) is used for low current applications up to 63A — homes, shops, and small commercial panels. Breaking capacity is typically 10–25 kA. MCCB (Moulded Case Circuit Breaker) handles 16A to 1600A with adjustable trip settings — used for industrial feeders, motor circuits, and sub-distribution boards. Breaking capacity up to 100 kA. ACB (Air Circuit Breaker) is designed for 800A to 6300A — used as main incoming breakers in LT panels and substations with electronic trip units (LSI/LSIG). All three are available from Schneider, L&T, Siemens, and ABB at Jay Enterprises.

For house wiring: use C-curve MCB (general purpose). Sizing: 6A MCB for lighting circuits (1.5 sq mm wire), 16A MCB for power socket circuits (2.5 sq mm wire), 20A MCB for AC/geyser circuits (4 sq mm wire), 32A MCB for submain feeders. Always add a DP 30mA RCCB at the main incoming for earth leakage protection (mandatory as per IS 732). Choose MCB breaking capacity of minimum 10kA for residential installations.

B-curve MCB trips at 3–5× rated current — used for resistive loads like heaters, lighting. C-curve MCB trips at 5–10× rated current — the most common type for general purpose residential and commercial circuits including motors with low inrush. D-curve MCB trips at 10–20× rated current — used for high inrush loads like motors, transformers, welding machines, and X-ray equipment in industrial applications. Most house wiring uses C-curve MCBs.

We are authorized stockist for Schneider Electric, L&T, Siemens, ABB, Legrand, and C&S Electric. We keep regular stock of MCBs, MCCBs, RCCBs, contactors, overload relays, starters, changeover switches, and distribution boards from all six brands at our MIDC Waluj warehouse in Chhatrapati Sambhajinagar. Non-standard ratings can be arranged within 2–3 working days.

DOL (Direct On-Line) starter connects the motor directly to full voltage — simplest method, used for motors up to ~15 HP. Inrush current is 6–8× FLA. Star-Delta starter starts the motor in star (at 1/3 voltage) then switches to delta — reduces inrush to ~2× FLA, used for 7.5 HP to 100 HP motors. Soft starter uses thyristors to gradually ramp up voltage — smoothest start with programmable ramp time, used for large motors where mechanical stress and voltage dip must be minimized. Available from Schneider, L&T, Siemens, and ABB.

RCCB (Residual Current Circuit Breaker) detects earth leakage current as low as 30mA and disconnects the circuit instantly — preventing electric shock and electrocution. It is mandatory as per IS 732 (Indian Electrical Installation Code) and the Indian Electricity Rules for all new residential, commercial, and industrial installations. Use 30mA RCCB for personal protection (sockets, bathrooms) and 100mA or 300mA RCCB for fire protection on outgoing feeders. Available in DP and FP from all major brands.

Yes, we offer special panel builder pricing for complete MCC/PCC/APFC panel BOM (Bill of Materials). We provide competitive rates for bulk quantities of MCCBs, contactors, overload relays, and all panel components. Project-based pricing available for large industrial and infrastructure projects. We also provide Type 1/Type 2 coordination tables and selectivity charts to help panel builders select the right combination. Call +91 8767172620 or WhatsApp us for bulk quotation.

We supply switchgear across entire Maharashtra and Goa. Our primary warehouse is in MIDC Waluj, Chhatrapati Sambhajinagar (Aurangabad). Regular deliveries to: Pune, Mumbai, Nashik, Nagpur, Solapur, Kolhapur, Ahmednagar, Jalna, Latur, Beed, Osmanabad, Nanded, Parbhani, and all Marathwada, Western Maharashtra, and Vidarbha regions. In Goa: Panjim, Margao, Vasco, Mapusa, Ponda. Same-day dispatch for in-stock items. Direct factory transport for large panel builder orders.