Inductive Load 415V AC Three Phase
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Product Code : SCL-EAE-12045
Inductive Load 415V AC Three Phase (SKU SCL-EAE-12045) is a balanced, switchable reactive load of up to 3 kVAR that creates lagging power factor conditions on a 415 V three-phase network. It serves electrical engineering students and technicians studying generators, transformers and network stability. Science Lab Supplies manufactures the unit at its plant at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and delivers it straight to engineering colleges, polytechnics, tender contractors and distributors.
Specifications
Every specification is given as a separate row in the table below. In short, copper-wound inductors on laminated silicon steel cores are star-connected with an accessible neutral, switched in four balanced steps per phase up to 3 kVAR at 415 V, and housed in a ventilated, powder-coated steel case.
| Specification | Value |
|---|---|
| SKU | SCL-EAE-12045 |
| Product type | Three-phase reactive loading apparatus |
| Maximum reactive capacity | 3 kVAR continuous |
| Operating voltage | 415 V AC, 50/60 Hz, three phase |
| Load steps | 4 switchable steps per phase, balanced across all three phases |
| Connection | Internal star (wye) with accessible neutral point |
| Delta option | Delta-wired variant available on request |
| Windings | Copper wire on low-loss laminated silicon steel cores |
| Insulation | Class H (180 °C) |
| Power factor | Lagging, close to zero (cos φ approx. 0.1) |
| Surge suppression | Metal-oxide varistors |
| Phase protection | Independent branch protection on each phase |
| Controls | Front-panel rotary selectors or toggle switches |
| Enclosure | Ventilated, heavy-gauge powder-coated mild steel |
| Terminals | 4 mm shrouded safety sockets for L1, L2, L3 and neutral |
| Earthing | Chassis bonded to an internal safety earth line |
| Accessories | 6 high-current 4 mm patch cords, 3 removable phase bridging links |
| Manual | English, with power calculations |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the 415 V Inductive Load
The load draws balanced lagging current from a three-phase source, so students can measure reactive power with Q = √3 × line voltage × line current × sin θ and see how machines respond. It suits B.Tech, diploma and advanced vocational electrical machines and power-systems laboratories working with 415 V supplies.
- Alternator studies: applying lagging loads to an educational alternator to plot excitation changes and vector diagrams.
- Power factor correction: acting as the inductive load while a Laboratory Capacitive Loading Unit 1.2 kVAR is switched in parallel.
- Three-phase transformer tests: loading the secondary of a Three Phase Mobile Transformer with reactive current to observe regulation.
Never pull a patch cord while a step is ON: breaking an inductive circuit can arc. Work at 415 V only under qualified supervision.
Standard Scope of Supply
Each unit is delivered with six high-current insulated patch cords with 4 mm safety connectors, three removable phase bridging links and an English operations manual covering power calculations and laboratory setups. The three-phase source and bench meters are not part of the set.
Packing, MOQ and Lead Time
Quotations can be issued for a single inductive load or for a matched set of loads for several benches. Each one lists the packing, delivery time and price for that quantity, and Science Lab Supplies, a science apparatus manufacturer in India, can add capacitive or resistive loads to the same quotation.
Under its Importer-Exporter Code, Science Lab Supplies can ship to buyers in Bangladesh, Zambia, Rwanda, South Africa, Qatar and Sri Lanka. Enquiries are welcome on the contact page and through the enquiry cart, while public-sector buyers can start from the lab tender page.
Frequently Asked Questions
What power factor does this load produce?
It behaves as a nearly pure inductive load, with a strongly lagging power factor close to zero (cos φ about 0.1) on every switched step, which makes reactive effects easy to measure.
Can the load be wired in delta?
The standard model is wired internally in star with an accessible neutral point. A delta-configured variant can be built on request; mention it when you ask for a quotation.
Can it run continuously during long experiments?
Yes. The copper windings use Class H insulation rated to 180 °C and the case has open cooling vents, so the unit carries its continuous rated load through long practical sessions.
Is Science Lab Supplies the maker of this inductive load?
Yes. Science Lab Supplies, a laboratory equipment manufacturer in India, winds and assembles the unit in its own Saha, Ambala factory, and quotations for colleges and contractors are issued by the factory itself.
Related Reactive Loads and Power-System Apparatus
These inductive, resistive and combined loads, plus a machine set from the Electrical and Electronics and Electrical Power System ranges, complete the reactive-power experiments started with this unit, and any of them can be listed with it on one quotation.
- Electrical Inductor Load Bank 2.4 kVAR — 2.4 kVAR three-phase inductive bank switched in four balanced steps.
- Electrical Inductor Loading Bank — 3 kVAR, 415 V three-phase inductive bank in four balanced steps per phase.
- Loading Inductor 240V AC Three Phase — 3 kVAR star-connected inductive load for 240 V three-phase circuits.
- Power Factor Load Bank — resistive, inductive and capacitive banks giving unity, lagging or lead power factor.
- Portable Resistive Load Bank — steel enclosure of three separate resistor banks that combine with capacitive and inductive banks.
- Salient Pole Generator — machine set with manual or automatic voltage regulation and its own resistive, capacitive and inductive load banks.
Browse the full Electrical and Electronics range, the Electrical Power System range, or all physics lab equipment.
Last updated: 9 October 2026
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