Rheostats (Nichrome Type) Manufacturer,Supplier and Exporter in India
Product Code : EL-SLE-4714
Jlab Export is a leading Rheostats (Nichrome Type) Manufacturer,and suppliers in India
Rheostats (Nichrome Type) (code EL-SLE-4714) are sliding-contact rheostats wound with nichrome resistance wire, used as variable series resistors or potentiometers in physics circuits. They have bell terminals, come in 10, 20, 30, 50 and 100 ohm values, and their contact runs on a chrome-plated metal slider rod for fast, fine adjustment. They are made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Resistance element | Nichrome wire |
| Resistance values | 10, 20, 30, 50 and 100 ohms |
| Current-carrying capacity | Varies with the model; the listing gives no figures — ask JLab for the rating of the value you choose |
| Sliding contact | On a chrome-plated metal slider rod, for fast and fine adjustment |
| Terminals | Bell terminals |
| Connection | As a series resistor (rheostat) or as a potentiometer |
| Quality check | Each rheostat 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-SLE-4714 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Rheostats?
| Model | Resistance wire | Values and other listed details |
|---|---|---|
| This rheostat (EL-SLE-4714) | Nichrome | 10, 20, 30, 50 or 100 ohms; bell terminals; chrome-plated slider rod |
| Rheostats (Continuous Constantan Type) | Constantan | Same values; bell terminals; chrome-plated slider rod |
| Rheostat | Not stated | Single tube, 11 ohm, 3 A; sliding contact on an aluminium rod |
| Rheostat 30 Ohm | Not stated | 30 ohm; contact block on a brass guide rod; three lock-type brass socket terminals |
Nichrome has a high resistivity and tolerates heat, which suits general current control in school circuits; its resistance rises a little as it warms. Choose the constantan version when you want the resistance to stay almost the same as the wire heats up, and the single-value rheostats when one fixed range and a stated current rating are all you need.
What Is the Nichrome Rheostat Used For?
Connected in series through one end terminal and the slider, the rheostat varies the current in a circuit — for example to take several readings of current and potential difference when verifying Ohm’s law in class 10. Connected across a supply with all three terminals, it becomes a potential divider that gives a variable voltage, as in class 12 practicals on the characteristics of a p–n junction diode, and it controls the current in the primary circuit of a potentiometer. College physics and electrical labs use it in the same ways.
Set the slider for maximum resistance before switching on, then reduce it gradually. Keep the current within the rating JLab confirms for your value, because the winding warms with use, and keep the slider rod clean so the contact stays smooth.
What to Specify When Ordering
- Resistance value — 10, 20, 30, 50 or 100 ohms, and how many of each.
- Current rating — tell JLab the maximum current your circuits draw, so it can confirm a suitable model.
- Wire — nichrome (this listing) or the constantan version.
- Quantity — minimum 10 units.
Frequently Asked Questions
What resistance values are available?
Five: 10, 20, 30, 50 and 100 ohms. Order the value that suits the circuit and supply voltage you use.
What current can the rheostat carry?
The listing says the models differ in current-carrying capacity but gives no figures. Ask JLab for the rating of each value before ordering for high-current work.
Can it be used as a potentiometer?
Yes. It is listed for use as a series resistor or a potentiometer; with the two end terminals across the supply, the slider gives a variable voltage.
Should I choose nichrome or constantan?
Nichrome tolerates heat and has a high resistivity; constantan keeps an almost constant resistance as its temperature changes. For general current control either works; for steadier readings as the rheostat warms, choose constantan.
Are meters and leads included?
No. The rheostat is sold on its own; ammeters, voltmeters, keys and connecting leads are separate items linked below.
Who manufactures the nichrome rheostat?
Jain Laboratory Instruments Pvt Ltd (JLab), at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a physics lab equipment manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. Its rheostats are wound and assembled at JLab’s own works rather than bought from a trader, so schools, colleges, dealers and importers buy factory-direct, each rheostat is visually inspected before dispatch, and repeat orders are handled by the manufacturer. JLab exports worldwide and ships to buyers in every region — for example Tajikistan in Central Asia, Switzerland in Western Europe, Slovakia in Eastern Europe, Sri Lanka in South Asia and Costa Rica in Central America and the Caribbean. Institutions buying by tender can use the JLab lab tenders page.
Circuit Apparatus
- Ammeter — desk-stand meter for reading the current you set.
- Voltmeters Dual Range — for the potential difference in Ohm’s law work.
- Potentiometer with Pencil Jockey — constantan-wire potentiometer whose primary circuit uses a rheostat.
- Plug Key — switches the circuit on and off.
- Resistance Box Plug Type (Superior Type) — for known, stepped resistances.
More items are in the School Lab Equipment range.
Request a Quote
Quotations come from the manufacturer directly. Use the Add To Cart enquiry button, or send the values and quantities (minimum 10 units), the current your circuits need and the delivery location through the contact page.
Last updated: 4 October 2026
