Power Supply 0-30 Volts 3 Amp Manufacturer,Supplier and Exporter in India
Product Code : EL-PSAT-1217
Jlab Export is a leading Power Supply 0-30 Volts 3 Amp Manufacturer,and suppliers in India
Power Supply 0-30 Volts 3 Amp (code EL-PSAT-1217) is a general-purpose laboratory DC supply, continuously variable from 0 to 30 V at 0 to 3 A, used to power circuits, electrolysis and electromagnetism experiments in college, polytechnic and school labs. Both voltage and current are adjustable, it is rated for continuous operation and two meters show the output. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Application | General laboratory DC supply |
| Output voltage | 0 to 30 V DC, continuously variable |
| Output current | 0 to 3 A, continuous |
| Controls | Voltage and current both variable |
| Load regulation | ±0.01% |
| Line regulation | 0.1% |
| Meters | Two |
| Quality check | Each power supply 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-PSAT-1217 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab 0–30 V Supplies?
| Model | Output | Meters | Other listed details |
|---|---|---|---|
| This supply (EL-PSAT-1217) | Single, 0–30 V DC at 0–3 A, continuous | Two meters | Voltage and current both variable; load regulation ±0.01%, line regulation 0.1% |
| Digital Regulated Power Supply | Single, 0–30 V at 1, 2, 3, 5 or 10 A (0–15 V versions also listed) | Two 3½-digit digital panel meters | Ten versions |
| Dual Power Supply 0-30 Volt 1 Amp | Dual, 0–30 V positive and 0–30 V negative, each at 1 A | Four meters | Stabilization ±0.1% |
Choose this supply when you want adjustable current as well as voltage and published regulation figures on a single 3 A output. The digital model suits buyers who prefer digital readouts or need more than 3 A, and the dual model is for circuits that need positive and negative rails.
What Is the 0–30 V, 3 A Power Supply Used For?
A variable DC bench supply is the everyday source for experiments that need a steady, known voltage or current: Ohm’s law and resistance networks, electrolysis and the verification of Faraday’s laws, electromagnets, small motors, heating coils, lamps and LED tests. Because current is adjustable as well as voltage, students can set a safe maximum current before connecting a load; on bench supplies with both controls the output then holds at that current if the load tries to draw more, which protects components and gives a steady current for electrolysis runs. The 3 A continuous rating covers most student-bench loads in physics, chemistry and electrical labs at colleges, polytechnics, ITIs and senior schools.
To use it, set both controls to minimum, connect the load with the correct polarity, raise the current control a little, then bring the voltage up to the value you need while reading the meters. Switch off before rewiring and keep the unit dry and clear of chemicals during electrolysis work.
What to Specify When Ordering
- Quantity — the minimum order is 10 units; many labs plan one per bench.
- Mains supply — the listing does not state the input rating, so give your local mains voltage, frequency and plug type.
- Leads and loads — connecting leads are not named in this listing; add leads, rheostats or other apparatus to the same enquiry.
Frequently Asked Questions
What output range does this power supply cover?
It gives 0 to 30 V DC at 0 to 3 A, both continuously variable, and it is rated for continuous operation at that current.
What do the load and line regulation figures mean?
Load regulation (±0.01%) is how little the output changes as the load current changes; line regulation (0.1%) is how little it changes when the mains voltage varies. Low figures mean the set voltage stays put while students take readings.
Why is an adjustable current control useful?
It lets you limit how much current a circuit can draw. Set it before connecting delicate components such as LEDs, or set a fixed current for electrolysis experiments where the charge passed must be known.
How does it differ from the Digital Regulated Power Supply?
The digital model has 3½-digit digital panel meters and comes in ten versions up to 10 A, but its listing does not state a current control or regulation figures. This model has two meters, adjustable current as well as voltage, and stated load and line regulation, at up to 3 A.
What information do you need for an export quotation?
The quantity, destination country and port or city, preferred delivery terms such as FOB or CIF, the mains voltage at site, any packing or labelling needs, and the tender reference if applicable.
Who manufactures this power supply?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, makes it at its works in Ambala, Haryana, India, and quotes for it as the manufacturer.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a laboratory equipment manufacturer in India covering physics, electronics and electrical apparatus, incorporated in 2017 and located on Hargolal Road, Ambala, Haryana. This bench supply is built in JLab’s own works instead of being bought in, so schools, colleges, dealers and importers order straight from the maker; each unit is visually inspected before dispatch and repeat orders are handled directly. JLab exports worldwide and ships to buyers in every region — for example Cyprus in Southern Europe, the USA in North America, Afghanistan in South Asia, Iceland in Northern Europe and Laos in Southeast Asia. For tender purchases, see the JLab lab tenders page.
Related Supplies and Bench Apparatus
- Digital Regulated Power Supply — single-output supplies with digital panel meters, in versions up to 10 A.
- Dual Power Supply 0-30 Volt 1 Amp — positive and negative 0–30 V rails for transistor and IC experiments.
- Battery Chargers — steel-cabinet chargers with an output current meter, for the lab’s batteries.
- Slide Wire Rheostats — variable resistances in several values and current capacities for setting circuit current.
- Ohm's Law Apparatus — for verifying V = IR, with terminals for an external supply.
See all models in the Power Supplies and Transformers range or the wider Scientific Instrument range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), your mains supply, any leads or accessories and the delivery location through the contact page.
Last updated: 8 October 2026
