JSL Industries is a small, decades-old Indian engineering firm that designs and makes the electrical equipment that controls and protects power systems - from the high-voltage transformers in transmission grids to the motor starters on factory floors. Incorporated in 1966 and operating from a single factory in Mogar, Gujarat, the company has spent over fifty years quietly building a catalogue of indigenously developed products, all certified to Indian and international standards. The recurring approach is self-reliant engineering: it designs in-house, tests to the latest standards, and sells to utilities and industries that need equipment built to last, not bought off the shelf.
Business segments
A single-engine manufacturer with three product divisions - instrument transformers for the grid, switchgear for industrial power control, and motors and pumps for efficient drive - all sharing one factory, one set of testing labs, and one fifty-year reputation for indigenous design.
1. Instrument transformers: the high-voltage sensing business
The division makes the specialised transformers that measure current and voltage on transmission lines up to 66 kV, selling primarily to state electricity utilities that order in bulk.
- Senses the grid - Instrument transformers step down high voltage and current to levels that meters and protective relays can read safely; without them, a substation is blind. The division makes both current transformers (CTs) and potential transformers (PTs) for indoor and outdoor use, including units for railway electrification at 25 kV.
- Built to customer specification - Every order is configured for the number of cores and accuracy class the client needs, rather than sold as a standard off-the-shelf item. This means the division competes on engineering capability, not just price.
- An accredited test lab is the differentiator - The in-house instrument transformer laboratory holds NABL accreditation, recently extended to cover testing from 25A to 1200A, valid for four years. That accreditation lets the company self-certify product performance, which matters when bidding for utility tenders.
- Utility orders are lumpy but large - The division wins contracts from state transmission companies like Gujarat’s GETCO. In FY26 it shipped 3,861 units of 66 kV instrument transformers, and recent orders include a Rs. 12.50 crore (including GST) contract for 66 kV CTs and PTs booked in February 2025.
- R&D keeps the catalogue tender-ready - Recent development work included type-testing an 11 kV oil-cooled outdoor CT metering unit to the IS 16227 / IEC 61869-2 standard, specifically to meet client requirements and qualify for new tenders.
2. Switchgear: the factory-floor power controller
The division makes the low-tension equipment - starters, breakers, contactors, and panels - that switches, protects and controls motors and electrical circuits in industrial plants.
- Starts and stops heavy motors - The core product line is motor starters: oil-immersed direct-on-line, star-delta and auto-transformer starters that handle the surge of current when a large motor kicks in. These are not commodity switches; they are engineered for specific horsepower ratings, with recent R&D extending the oil-immersed star-delta range up to 60 HP.
- Protects the circuit when things go wrong - The division also makes air circuit breakers (ACBs) and moulded-case circuit breakers (MCCBs) that interrupt fault currents before they damage equipment. The ACB range has been re-certified to the latest IS/IEC 60947-2 standard, which keeps the products valid for industrial buyers who require compliance.
- Assembles the full control suite - Beyond individual devices, the division builds the panels and enclosures that house them: motor control centres, distribution boards, APFC (automatic power factor correction) panels, and bus-ducts. This turns a catalogue of components into a complete power-management solution for a factory or a building.
- Standards-driven re-engineering - When Indian standards change, the division re-tests and re-designs. It has certified its 200 kVA and 500 kVA LT distribution boards to the new IS/IEC 61439 standard and modified the 200 kVA box design to match, ensuring the product stays sellable without a gap.
3. Motors and pumps: the efficient drive business
The division makes energy-efficient electric motors and the mono-block pumps that package a motor and pump into a single unit, targeting buyers who care about power bills and regulatory efficiency norms.
- Efficiency is the product - The division has developed motors that meet IE4 (super-premium) efficiency class, well ahead of the mandatory minimums in India. Recent R&D delivered a TEFC foot-mounted induction motor with IE4 efficiency for 4-pole series up to the 315 frame and for 2-pole up to the 200 frame.
- Three motor families for different jobs - The range spans TEFC (totally enclosed, fan-cooled) motors for dusty or wet environments, SPDP (screen-protected, drip-proof) motors for cleaner indoor use, and VHS (vertical hollow shaft) motors designed to drive deep-well pumps. Each is built to IS/IEC 60034-1 standards.
- Motors and pumps under one roof - The division also makes uni-built mono-block pumps and submersible pump controllers, so a customer buying a pump gets a motor that was designed to work with it, not a generic motor adapted after the fact.
- A shared testing backbone - The company has a full-load testing facility that can handle both horizontal and vertical motors, a capability it shares with its promoter-group company Jyoti Limited. That means motors can be proven at full rated load before they leave the factory.
Group structure and partners
JSL Industries is a standalone company with no subsidiaries, but it operates inside a tight promoter-group ecosystem - sharing a brand, a test facility, and cross-shareholdings with Jyoti Limited, a fellow electrical-equipment manufacturer.
- No subsidiaries, no joint ventures - The company is a single legal entity with a single factory and 47 employees as of March 2026. There is no holding-company complexity.
- Cross-held with Jyoti Limited - JSL owns 4.65% directly and 19.30% indirectly in Jyoti Limited; Jyoti owns 2.49% directly and 8.40% indirectly in JSL. The two companies are physically close, which makes coordination, inspection and follow-up straightforward.
- Jyoti is both a supplier and a customer - JSL sells starters, motors, instrument transformers and control panels to Jyoti, buys job-work and silver-plating services from it, and pays a royalty to use the Jyoti brand name and trademark. The shared full-load motor testing facility is a practical example of the operational overlap.
- A family-run board - The five-member board includes Rahul Amin as non-executive chairman and his wife Tejal Amin as whole-time director, alongside a CEO, CFO and company secretary in the key management roles.