MCB Manufacturers in India: A Buyer’s Guide from Our Mumbai Works

MCB manufacturers in India: who makes what

MCB manufacturers in India range from large national brands to regional makers, and between them sit traders who buy breakers in and print their own name on the box. For a buyer the difference matters: a manufacturer holds the BIS licence for the breaker, controls how it is built and can answer for it when something goes wrong.

We are one of those manufacturers. Vinayak Electricals has made electrical accessories in Mumbai since 1995, and our MCBs are made at our works in Marol, Andheri East, the only place we manufacture. The breakers carry our VIYONA name, a 10 kA breaking capacity and BIS licence CM/L-2544151 under IS/IEC 60898-1, the Indian standard for household and similar MCBs.

This guide is for the person choosing a supplier, whether a contractor’s buyer, a builder, a dealer or a homeowner in Mumbai: what an MCB maker should show you, our range and MRPs, and how to buy from us.

What does an MCB manufacturer make?

An MCB manufacturer typically makes miniature circuit breakers in single, double, three and four pole versions, plus the isolators and distribution boxes they sit in, and we make all of these at our Mumbai works: VIYONA 10 kA MCBs from 6A to 63A, isolators in 40A and 63A, MCB boxes, and KEMPS modular MCBs for switch boards.

The range by pole count: SP single pole from 6A to 63A, DP double pole from 6A to 63A, TP three pole and FP four pole in 40A and 63A. Every one is 10 kA and made to IS/IEC 60898-1. The full list with codes is on our VIYONA MCB range page and the 10 kA breaking capacity MCB product page.

Single and double pole cover most homes and shops on a single-phase supply. Three and four pole MCBs are for three-phase supplies, found in larger homes, offices and buildings. Alongside the breakers we make 40A and 63A isolators in double, three and four pole.

How to judge an MCB manufacturer in India

Judge an MCB manufacturer by what is printed on the breaker and what the company can show on paper: the rating, the breaking capacity, IS/IEC 60898-1 and a BIS licence number on the face of the MCB, a works you can name or visit, ISO 9001 certification, test reports on request and a printed MRP.

Start with the device. A genuine MCB shows its rating, its breaking capacity and the standard on the face, not only on the carton. The licence number, CM/L-2544151 in our case, can be checked; our guide on how to spot a fake ISI mark shows how.

Then the company. Ask where the breaker is made, whether it holds ISO 9001:2015, and whether it will send test reports before an order. We do, on request. A supplier who cannot name a works is usually a trader, one step further from the answers.

10 kA MCB manufacturer: what 10 kA means

10 kA breaking capacity means the MCB can safely interrupt a short-circuit current of up to 10,000 amps without being destroyed, which matters because a fault close to the supply can briefly push thousands of amps through a circuit, far beyond the breaker’s 16A or 32A rating, and the MCB has to clear it.

Two numbers sit on every breaker and they do different jobs. The rating (16A, 32A) is where it trips on overload. The breaking capacity (10 kA) is the worst fault it can survive. Breakers are commonly sold at 6 kA and 10 kA; a higher breaking capacity gives more headroom against a severe fault, which is why every VIYONA MCB we make is 10 kA.

In general practice the electrician checks the breaking capacity against the fault current possible at that point in the installation. As a buyer, make sure the figure is printed on the device.

For how B and C curves behave in general, and why a curve is never a reason to fit a bigger rating, see our guide to an MCB tripping again and again.

Modular MCB manufacturers in India

A modular MCB is a small breaker that fits a modular switch board instead of the distribution board, so one point, such as a geyser or a heater, can be cut off locally. We make them under KEMPS as the TinyTrip K225, a single pole modular MCB from 10A to 32A at ₹295 MRP, and the K226 double pole at ₹625.

A modular MCB is an extra, not a replacement. The circuit still needs its breaker in the distribution board; the K225 or K226 adds a cut-off beside the appliance. The range is on our TinyTrip modular MCB page, and the plates and frames it fits are in the guide to our KEMPS, VIZA and VIYONA series.

MCB boxes, distribution boards and isolators

Alongside the breakers we make the enclosures they sit in: SPN white line MCB boxes from 2–4 way to 16–18 way, double door distribution boxes from 4 way to 16 way, TPN double door boxes for three-phase supplies from 4 way to 8 way, and small PVC surface boxes for one to four MCBs.

The SPN white line MCB box is the usual choice in a flat. The double door distribution box runs from 4 way ₹750 to 16 way ₹1,410, and the TPN version from 4 way ₹2,620 to 8 way ₹3,350. For one or two MCBs on a wall, the 1 & 2 way PVC royal MCB box is ₹66. All of them are on the MCB distribution box page.

Isolators switch but do not trip. Ours are DP 40A ₹230, DP 63A ₹290, three pole ₹370 and ₹400, and four pole ₹480 and ₹530.

How our MCBs are made at our Mumbai works

Our MCBs are made 100% in-house at our works in Marol, Andheri East, Mumbai, through the same five-step quality process as every product we make: raw material selection, in-house manufacturing, assembly with checkpoints, functional and safety testing, and final inspection and packaging. Nothing in the range is outsourced.

The process runs under our ISO 9001:2015 certification, and the breaker itself is made under BIS licence CM/L-2544151. We do not publish test counts or rejection rates, and we would rather send a buyer a test report on request than quote a number here. The steps are set out in how we ensure quality and the works in the factory behind our 2000+ products.

Buying MCBs in Mumbai

In Mumbai you can buy our MCBs from an electrical dealer, by phone, or by visiting us in Marol, Andheri East, and there is no online shop, so every order goes through a dealer, a phone call or a visit. The contact page lists the numbers and the address.

Three routes, then: Dealer for most homeowners and electricians, who buy over the counter; Phone for contractors and project buyers who want a quotation; and Visit for anyone who wants to see the range before an order. Use the contact page for all three, including finding the dealer nearest you.

A buyer in Mumbai gains two things from a maker in the same city: the same catalogue codes across every order, and a supplier you can reach in person. The e-catalogue has the full range with MRPs.

MCB supplier across India

Outside Mumbai our MCBs are sold through more than 500 dealers across India, who order from us directly, and the breakers, codes and MRPs are the same everywhere because they all come from one works in Mumbai. Dealer pricing is shared on enquiry rather than published.

For a dealer, stocking a maker’s MCB means one supplier for breakers, isolators, boxes and the switches that go on the wall, with printed MRP on every pack. Electricians and dealers who buy from us can also join VINAYAK KONNECT, our loyalty programme, where members earn on every purchase and redeem against rewards; how VINAYAK KONNECT works explains it.

To stock the range, start with how to become a dealer or distributor. For the national overview of the range, see our MCB manufacturer in India page; for the rest of what we make, all products.

10 kA MCB price list (MRP)

Our 10 kA single pole MCB is ₹145 MRP from 6A to 32A, ₹185 at 40A and ₹215 at 63A, while the double pole is ₹350 from 6A to 32A, ₹435 at 40A and ₹530 at 63A. Three pole is ₹655 and ₹815, four pole ₹855 and ₹1,035, at 40A and 63A.

One price across 6A to 32A makes a board easy to cost. A worked example from our which MCB for home guide: ten single pole MCBs (10 × ₹145 = ₹1,450), a 40A double pole incomer (₹435) and a 10–12 way SPN box (₹620) come to ₹2,505 at MRP, before wiring and labour.

Which MCB for which circuit?

Each circuit typically takes the MCB that matches its cable and load: lights and fans a 6A or 10A single pole MCB, sockets 16A, a geyser its own 16A or 20A, each AC its own 16A to 25A by size, and the main line a double pole MCB or isolator of 32A to 63A.

In short: 6A–10A lights, 16A sockets, 16A–20A geyser, 16A–25A AC and 32A–63A incomer. The whole house, circuit by circuit, is in which MCB for home, and each AC size in MCB for 1, 1.5 and 2 ton AC. The figures match across all three pages.

An MCB protects the wire against overload and short circuit. It does not protect against shock; that is the job of an RCCB, which we do not make. The rest of the checklist is in electrical safety tips for Indian homes.

Ordering MCBs for a project

For a building, a fit-out or a batch of flats, send us a bill of materials through the contact page and we quote against it: the breakers, isolators, boxes and wiring accessories on one order, from one maker. Test reports are available on request before the order is placed.

What helps us quote quickly: the number of flats or boards, the ways per board, the incomer rating and poles and whether the supply is single or three phase. The room-by-room points that decide a board’s count are in how to design a modern electrical layout.

The order can include the wall switches and sockets too, so the MCB and wall point match: a 16A MCB with a 16A socket, a 20A circuit with a 20A or 32A DP switch.