Loading Inductor 240V AC Three Phase

Product Code : SCL-EAE-12048

Loading Inductor 240V AC Three Phase (SKU SCL-EAE-12048) is a balanced, switchable inductive load of up to 3 kVAR for three-phase networks at 240 V, used to create lagging power factor conditions on lower-voltage benches. Engineering students and technical instructors use it to study transformer regulation, alternator excitation and network stability. It is manufactured by Science Lab Supplies at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, which supplies it directly to colleges, institutes, tender contractors and distributors.

Specifications

Each technical detail has its own row in the table below. In short, copper-wound inductors on laminated silicon steel cores are star-connected with an accessible neutral and switched in four balanced steps per phase, giving up to 3 kVAR of lagging load on a 240 V three-phase supply.

Applications and Experiments for the 240 V Loading Inductor

The inductor draws balanced lagging current from a 240 V three-phase source so students can calculate reactive power with Q = √3 × line voltage × line current × sin θ. It suits electrical machines and power-systems practicals in B.Tech, diploma and vocational courses that run low-voltage three-phase benches.

• Alternator vector diagrams: applying lagging loads to an educational alternator and plotting excitation changes.
• Power factor correction: acting as the inductive load while capacitors compensate it, a principle also built into the Power Factor Load Bank.
• Transformer regulation: loading the secondary windings of a Single Phase Mobile Transformer set connected as a three-phase bank.

Never disconnect a cord while a step is ON, since a broken inductive circuit can arc; supervise all live work.

Standard Scope of Supply

Each loading inductor comes with six high-current insulated patch cords with 4 mm safety connectors, three removable phase bridging copper links and an English operations manual detailing power calculations. The 240 V three-phase source and the bench meters used for readings are separate items.

Packing, MOQ and Lead Time

A quotation can be raised for one loading inductor or for several matched units for a machines laboratory. As a physics instruments supplier in India, Science Lab Supplies lists the packing, delivery time and price for that quantity, and capacitor or resistor banks can be added to the same quotation.

Because it holds an Importer-Exporter Code, Science Lab Supplies can ship to buyers in South Africa, Qatar, Sri Lanka, Vietnam, Malaysia and Peru. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Start an enquiry on the contact page or in the enquiry cart; tender details are on the lab tender page.

Frequently Asked Questions

How does this model differ from the 415 V inductive loads?
It is designed for 240 V three-phase networks, while the Inductive Load 415V AC Three Phase runs at 415 V. Both are star-connected, rated 3 kVAR and switched in four balanced steps per phase.

Can it be wired in delta?
The standard model is pre-wired internally in star. A delta-configured variant can be made on request, so state the connection you need when asking for the quotation.

What happens if one phase is overloaded?
Independent branch protection trips the affected phase line straight away to protect the inductor coils, while the steel chassis stays bonded to its internal safety earth line.

Is this loading inductor manufactured by Science Lab Supplies?
Yes. Science Lab Supplies is a science apparatus manufacturer in India, and this inductor is wound and assembled in its Saha, Ambala factory, so the quotation you receive comes from the maker itself.

Related Reactive Loads and Power-System Apparatus

These inductive, capacitive and resistive loads and a transformer module from the Electrical and Electronics and Electrical Power System ranges complete the reactive-power practicals built around this inductor, and any of them can be quoted together with it on one document.

• Inductive Load 415V AC Three Phase — 3 kVAR star-connected inductive load for 415 V three-phase circuits.
• Electrical Inductor Loading Bank — 415 V star-connected inductors with Class H insulation and metal-oxide varistors.
• Electrical Inductor Load Bank 2.4 kVAR — 2.4 kVAR three-phase inductive bank switched in four balanced steps.
• Laboratory Capacitive Loading Unit 1.2 kVAR — 1.2 kVAR three-phase film-capacitor bank with discharge resistors.
• Portable Resistive Load Bank — three electrically separate banks that connect in star or delta, each with a thermally operated circuit-breaker.
• Transformer Trainer — instrumented module with single- and three-phase educational transformers and selectable loads.

Browse the full Electrical and Electronics range, the Electrical Power System range, or all physics lab equipment.

Last updated: 9 October 2026