Immersion Heater
Product Code : LSK-PL-10285
Immersion Heater (SKU LSK-PL-10285) is a 50 W, fully sheathed heater that runs on 12 V AC or DC and fits into calorimeter blocks. It supplies a measured amount of electrical energy in specific heat capacity and other heat experiments in school and college physics. Made by Science Lab Supplies at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, the heater is sold directly to schools, colleges, contractors and distributors.
Specifications
Rating, supply and size of the 50 W heater are tabulated below, one figure per row. In brief, the fully sheathed element measures 12.5 mm across and 100 mm long to suit the heater hole of a calorimeter block, draws 5 A from a 12 V AC or DC supply, and connects through 4 mm sockets.
| Specification | Value |
|---|---|
| SKU | LSK-PL-10285 |
| Power | 50 W |
| Supply voltage | 12 V |
| Current | 5 A |
| Supply type | AC or DC |
| Construction | Fully sheathed |
| Connections | 4 mm sockets |
| Diameter | 12.5 mm |
| Length | 100 mm |
| Suitable for | Calorimeter blocks |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Immersion Heater
The heater turns a known electrical input into heat inside a metal block or liquid, so students can relate the energy supplied to the temperature rise. It can serve as the heat source for electrical specific heat capacity experiments in secondary, senior secondary and first-year college physics.
- Specific heat capacity of different metal blocks, with temperatures read from the Thermometer Set.
- Specific heat capacity of water in a calorimeter.
- Specific latent heat of vaporisation of water.
- Heating curves timed with a Digital Stopwatch.
- Class 10 electricity: heating effect of electric current.
The sheath becomes hot in use. Switch off and let it cool before removing it from the block, and run it only on a 12 V supply.
Standard Scope of Supply
The Immersion Heater is supplied as a single fully sheathed 50 W element with 4 mm connection sockets, as described above. The calorimeter block, a 12 V AC or DC supply, a joulemeter and connecting leads are separate items that can be listed on the same quotation.
Packing, MOQ and Lead Time
Request a price for one heater or for a class set to match your calorimeter blocks; every quotation spells out the packing, delivery time and price for that number. Heating blocks and 12 V supplies can be quoted at the same time.
Registered as an exporter under an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Bangladesh, Zambia, Rwanda, South Africa, Qatar and Sri Lanka. Heaters for a whole calorimetry bench can be priced by writing on the contact page, by listing them in the enquiry cart, or through the lab tender page for tenders.
Frequently Asked Questions
What supply does the Immersion Heater need?
A 12 V supply, AC or DC; it draws 5 A to give 50 W. Connect it through the 4 mm sockets to a 12 V transformer or power supply rated for that current.
Will it fit my calorimeter blocks?
The heater is 12.5 mm in diameter and 100 mm long and is made for calorimeter blocks. Check that your blocks have a heater hole of at least that diameter and depth.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies makes the heater in its own factory in Saha, Ambala, India, so the price, packing and dispatch you are quoted come from the manufacturer rather than a reseller.
Can the heater be quoted for a tender?
Yes. List the quantity and delivery location with the tender specification, and the heater will be quoted item by item with any related items the tender lists.
Related Heat Experiment Equipment
Electrical heating experiments need more than the heater: something to heat, a way to measure the energy, a 12 V supply and a vessel for liquids. The items below complete that set, with a choice of meters and calorimeters, and can be listed with the heater on a single quotation for a heat laboratory.
- Calorimeter Heating Block — cylindrical metal blocks of 1 kg with a 12.5 mm central heater hole.
- Joulemeter, Low Voltage — switch-selected mJ/mW and J/W ranges, 10 A maximum load current.
- Student Digital Joulemeter — microprocessor circuitry, 0–15 V AC or 0–21 V DC input.
- Multitap Transformer — 12 V AC tapping with a 4 mm socket, 6 A continuous.
- Copper Calorimeter Set — outer vessel with a detachable clip-type thermometer support.
- Aluminum Calorimeter — aluminium calorimeter with an insulated handle for specific and latent heat work.
- AC/DC Laboratory Power Supply — DC and AC steps from 1 to 15 V at up to 10 A.
Browse the full Physics Lab range, the Heat range, or all physics lab equipment.
Last updated: 22 October 2026
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