Triac AC Line Switching Manufacturer,Supplier and Exporter in India
Product Code : EL-PET-1420
Jlab Export is a leading Triac AC Line Switching Manufacturer,and suppliers in India
Triac AC Line Switching (code EL-PET-1420) is a power electronics training board for five experiments on the triac as an AC mains power switch, with a 40 W lamp as the load. Its built-in isolation transformer protects external instruments that are not themselves isolated. Jain Laboratory Instruments Pvt Ltd (JLab) builds the board in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Experiments | TRIAC as a line-triggered AC power switch; TRIAC as a DC-triggered AC power switch; TRIAC as a self-latching line switch; TRIAC as a UJT-triggered AC power switch; UJT-triggered AC power switch with external transistor control from a transducer |
| Isolation transformer | 230 V AC, 250 mA; protects external instruments from damage if they are not isolated |
| DC supply for triggering | 12 V DC at 250 mA, IC regulated |
| Device under test | TRIAC mounted on the board |
| Trigger switches | Two push-button switches |
| Trigger pulse source | UJT 2N2646 connected as a relaxation oscillator |
| Pulse transformer | 1:1 |
| Transducer control | NPN transistor for control of the UJT from an external transducer |
| Load | Lamp holder with 40 W lamp, serving as the load and power-control indicator |
| Other components | Adequate number of other electronic components |
| Mains controls | Mains ON/OFF switch, fuse and jewel light |
| Mains supply | 230 V ±10%, 50 Hz AC |
| Patch cords | Adequate number, stackable, with 4 mm spring-loaded plugs, ½ metre long |
| Terminals | Terminals and sockets at appropriate points on the panel for connections and observation of waveforms |
| Operating instructions | Detailed, giving the object, theory, design procedures, report suggestions and book references |
| Weight | 5 kg (approx.) |
| Dimensions | W 412 × H 150 × D 310 |
| Other apparatus required | Digital multimeter, 3¾ digit; dual-trace cathode ray oscilloscope, 20 MHz (unearthed) |
| Packing | Corrugated box |
| Quality check | Each board 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-PET-1420 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Triac AC Line Switching Board Used For?
The board shows how a triac takes the place of a mechanical switch or relay contact in an AC power circuit. Students turn the same triac on by different gate-triggering methods, watch the lamp load switch on and off, and follow the gate and load waveforms at the panel terminals — the groundwork for solid-state relays and other thyristor-based AC controls. Triac switching is a regular topic in power electronics practicals for electrical and electronics engineering students at diploma and degree level.
What to Specify When Ordering
- The number of boards for your lab benches.
- Any test instruments you want quoted with the boards on the same enquiry.
- Other power electronics trainers from the same range, if you are equipping a complete practical set.
- The destination, delivery terms and, for a tender, its reference number.
Frequently Asked Questions
Why is a triac used rather than an SCR to switch AC?
An SCR conducts in one direction only, so on AC it passes just one half-cycle; a triac conducts in both directions once triggered, so one device switches the full AC waveform to the load. Like an SCR, it turns off by itself when the current falls close to zero at the end of each half-cycle, so the gate has to be triggered again in every half-cycle to keep the load on.
What power does the board need?
It runs from 230 V ±10%, 50 Hz AC mains. A built-in 12 V DC, 250 mA IC-regulated supply provides the DC for the DC-triggering experiment.
What does the UJT on the board do?
The 2N2646 unijunction transistor is wired as a relaxation oscillator and supplies the trigger pulses for the UJT-triggered experiments. A 1:1 pulse transformer is built in, and an NPN transistor lets an external transducer control the UJT.
What other apparatus is needed?
A 3¾-digit digital multimeter and a 20 MHz dual-trace cathode ray oscilloscope of the unearthed type. JLab lists a digital multimeter and a 20 MHz dual-trace oscilloscope as separate items; both are linked below and can be quoted on the same enquiry.
How does this board differ from the Triac and AC Phase Control trainer?
Its experiments use the triac as an AC power switch, triggered from the line, from DC, by self-latching or by a UJT. The Triac and AC Phase Control trainer covers the triac in its four triggering modes (I+, I−, III+ and III−), gate control with NPN and PNP transistors, phase control with a DIAC, a light dimmer and suppression of radio frequency interference with an RFI filter.
What should an export enquiry include?
The number of boards, the destination country and port or city, the delivery terms you prefer (for example FOB or CIF), any packing or labelling needs and, for a tender purchase, the tender reference.
Who makes the Triac AC Line Switching board?
JLab — Jain Laboratory Instruments Pvt Ltd — builds it at its works in Ambala, Haryana, India, and supplies it directly as the manufacturer.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an Indian maker of electronics and power electronics training boards, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. This board comes from JLab’s own works rather than from a trading house, so colleges, polytechnics, dealers and importers order straight from the maker; every unit is visually inspected before it is packed, and repeat orders are handled by the same team. The company holds MSME Udyam registration UDYAM-HR-01-0003849 as a manufacturing enterprise and Importer-Exporter Code 3317504552. JLab exports worldwide and ships to buyers in every region — for example Taiwan in East Asia, Brazil in South America, Eswatini in Southern Africa, Ghana in West Africa and Papua New Guinea in Oceania. Institutions buying by tender can refer to the JLab lab tenders page.
Related Thyristor Trainers and Test Instruments
- Triac and AC Phase Control — a board for the triac’s four triggering modes, phase control with a DIAC and RFI suppression.
- Lamp Dimmer Using Diac and Triac — a self-contained board with an isolation transformer, triac, diac and a potentiometer to set the lamp brightness.
- Thyristor Time Delay Relay — a timer board whose experiments include delayed turn-on and auto turn-off of a TRIAC used as a line switch.
- UJT Relaxation Oscillator — a board for studying the UJT relaxation oscillator and its use as an SCR trigger circuit.
- Dual Trace Oscilloscope — a 20 MHz dual-channel oscilloscope for viewing waveforms.
- Digital Multimeter — a hand-held meter for AC and DC voltage, DC current and resistance.
Browse all Power Electronics Trainers or the wider Electronics Lab Equipments range.
Request a Quote
To ask for a quotation, use the Add To Cart enquiry button on this page or write through the contact page with the number of boards, the delivery destination and any multimeters or oscilloscopes you want quoted alongside.
Last updated: 22 October 2026
