Rheostat Bank Single Phase Manufacturer,Supplier and Exporter in India
Product Code : EL-SI-8150
Jlab Export is a leading Rheostat Bank Single Phase Manufacturer,and suppliers in India
Rheostat Bank Single Phase (code EL-SI-8150) is a resistive load bank rated for 250 V AC, 50 Hz, used as an adjustable load in electrical machines and power labs. Its rheostats are wound on high-grade porcelain tubes with nickel-copper or nickel-chrome wire and housed in a sheet-metal box on a sturdy angle-iron frame, ventilated on all sides for free cooling. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Supply rating | 250 V AC, 50 Hz (single phase) |
| Resistance elements | Rheostats wound on high-grade porcelain tubes |
| Winding wire | Nickel-copper or nickel-chrome |
| Terminals | Windings terminated into inverted screw terminals |
| Housing | Sheet-metal box on a sturdy angle-iron frame, covered with perforated sheet |
| Cooling | Ventilated on all sides for free cooling |
| Also listed | Rheostat Bank Three Phase, 415 V AC, 50 Hz |
| Quality check | Each rheostat bank is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-SI-8150 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Load Units?
| Model | Supply | Load elements | Other listed details |
|---|---|---|---|
| Rheostat Bank Single Phase (EL-SI-8150) | 250 V AC, 50 Hz | Porcelain-tube rheostats, nickel-copper or nickel-chrome wire | Ventilated sheet-metal box on angle-iron frame; perforated cover; inverted screw terminals |
| Rheostat Bank Three Phase (listed with this product) | 415 V AC, 50 Hz | As above | Ask JLab for the three-phase layout |
| Lamp Load Single Phase | Single phase | Lamps (trolley type, supplied without lamps) | Loading capacity 4 kW or 6 kW in steps of 200 W |
A rheostat bank gives a purely resistive load without glare from lamps; the lamp load is switched in fixed 200 W steps and shows the load visually. Choose the three-phase bank for balanced three-phase machine tests.
What Is the Rheostat Bank Used For?
Electrical machines and power labs use a rheostat bank as the load when testing transformers, alternators and DC generators on load, when checking power supplies and inverters, and when running energy meters and wattmeters at a known resistive (unity power factor) load. Nickel-copper windings hold their resistance well as they warm, while nickel-chrome has a higher resistivity and tolerates higher working temperatures; the porcelain tubes carry the heat, and the open, all-round ventilation and perforated cover let hot air escape while covering the windings.
The resistors get hot under load, so keep clear space around the bank, never cover the perforated sheet, connect and disconnect with the supply switched off, and let the unit cool before handling. Keep the load current within the rating confirmed for your bank, and check that the inverted screw terminals are tight before each test.
What to Specify When Ordering
- Phase — single-phase (250 V AC) or three-phase (415 V AC) bank.
- Load rating and steps — the total kW or current and the steps you need, as these are not fixed in the listing.
- Winding wire — nickel-copper or nickel-chrome, if you have a preference.
- Quantity — the minimum order is 10 units.
Frequently Asked Questions
What supply is the single-phase bank rated for?
250 V AC, 50 Hz. A three-phase bank rated 415 V AC, 50 Hz is also listed.
What are the resistance elements made of?
Rheostats wound with nickel-copper or nickel-chrome wire on high-grade porcelain tubes, terminated into inverted screw terminals.
How is it cooled and protected?
The resistances are housed in a sheet-metal box on an angle-iron frame, covered with perforated sheet and ventilated on all sides for free cooling.
What load rating and steps does it have?
The listing does not state them. Send the kW or current and the steps your experiments need, and JLab will confirm the build.
Who manufactures the rheostat bank?
JLab (Jain Laboratory Instruments Pvt Ltd) builds it at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an Indian manufacturer of electrical machines lab and physics equipment, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The rheostat bank is wound, framed and wired in JLab’s own works rather than sourced from a trader, so engineering colleges, polytechnics, ITIs, dealers and importers buy direct from the maker; each bank is visually inspected before dispatch, and repeat orders are handled by the same works. JLab exports worldwide and ships to buyers in every region, such as Kyrgyzstan in Central Asia, Libya in North Africa, Malaysia in Southeast Asia, Mongolia in East Asia and Zambia in East Africa. Tender information is on the JLab lab tenders page.
Related Electrical Lab Equipment
- Variac Single & Three Phase — a variable AC source for feeding test circuits.
- Lamp Load Single Phase — a trolley-type lamp load switched in steps.
- Power Factor Meter — electro-dynamic panel meter for AC circuits.
- Digital Panel Meters — mains-operated meters for AC or DC voltage and current.
- Higher Range Rheostat — a single Kanthal-wound sliding rheostat for bench circuits.
More equipment is in the Scientific Instrument range and the Indian Instruments section.
Request a Quote
JLab quotes as the manufacturer. Use the Add To Cart enquiry button, or send the phase, load rating and steps, quantity (minimum 10 units) and delivery location through the contact page.
Last updated: 8 October 2026
