Reversing Key / Commutator Manufacturer,Supplier and Exporter in India
Product Code : SCL-EAE-11286
The Reversing Key / Commutator changes the electrical connections between a power source and the connected circuit. Moving the operating contact from one position to the other reverses the polarity applied to the experimental load, causing conventional current to flow in the opposite direction.
This apparatus provides a clearer and more repeatable method of reversing current than manually interchanging connecting leads. The contact material, terminal arrangement, base material, permissible current and voltage ratings, and operating mechanism must be confirmed from the approved product specification before publication or use.
Key Features
Current-direction control: Reverses the direction of conventional current in a compatible circuit.
Polarity demonstration: Helps learners observe how reversed polarity affects connected instruments or components.
Convenient switching: Reduces the need to disconnect and interchange circuit leads manually.
Visible operating principle: Allows students to examine how alternative contacts change the circuit path.
Supports meter observations: Can demonstrate reversed galvanometer or meter deflection where appropriate.
Reusable laboratory apparatus: Suitable for repeated supervised experiments within its confirmed electrical rating.
Simple circuit integration: Can be used with compatible low-voltage supplies, leads and measuring instruments.
Technical Specifications
|
Specification |
Detail |
|
Product Name |
Reversing Key / Commutator |
|
Brand |
Lab Exports |
|
Product Category |
Physics Laboratory Equipment – Electrical and Electronics |
|
Unit Capacity |
One circuit-reversing switch unit |
|
Primary Function |
Reversing circuit polarity and current direction |
What's Included in the Kit
1 × Reversing Key / Commutator
Connecting leads, power supply, galvanometer, meters and experiment instructions are not confirmed as included. Verify the complete supply scope before ordering.
Applications / Uses
Reversing current direction in a low-voltage circuit.
Demonstrating the effect of changing electrical polarity.
Observing reversed galvanometer deflection.
Supporting electromagnetic induction experiments.
Changing current direction through a coil or electromagnet.
Using in bridge, potentiometer or comparison circuits where polarity reversal is required.
Teaching circuit switching in physics and basic electrical laboratories.
How to Use the Reversing Key Commutator
Place the apparatus on a clean, dry and stable laboratory bench.
Identify the terminals and confirm the internal switching arrangement.
Keep the power supply switched off while assembling the circuit.
Connect the source and experimental load according to the circuit diagram.
Set the reversing key in its first operating position.
Switch on the low-voltage supply and observe the current direction or meter deflection.
Switch off the supply before moving the key to the opposite position.
Re-energise the circuit and compare the resulting observation.
Safety note: Do not exceed the confirmed voltage or current rating. Switch off the power before changing the key position unless the approved experiment procedure expressly permits live switching.
Care & Maintenance
Store the commutator in a dry, dust-free laboratory cabinet.
Keep terminals and contact surfaces clean and free from corrosion.
Operate the key gently without forcing the moving contact.
Inspect connections, fasteners and insulation before each experiment.
Why Choose Lab Exports?
Lab Exports manufactures, supplies and exports scientific laboratory instruments and educational equipment. Its range includes physics apparatus, experiment setups, science kits, mathematics kits, didactic models and STEM resources. Buyers can confirm the terminal arrangement, electrical rating, construction and required accessories before ordering so that the supplied commutator matches the intended circuit experiment.
Frequently Asked Questions
What is a Reversing Key Commutator used for?
It is used to reverse the polarity and direction of current in a compatible electrical circuit without manually interchanging the connecting leads.
How does a reversing key change current direction?
The key changes which terminals are electrically connected. This reverses the polarity applied to the connected circuit.
Can it be used with a galvanometer?
Yes. It can demonstrate how reversing current direction changes the direction of galvanometer deflection when used in a suitable circuit.
Is this the same as a motor commutator?
No. This product is an external laboratory reversing switch. A motor commutator is a rotating component built into certain electrical machines.
Is the Reversing Key Commutator suitable for schools?
Yes. It is intended for supervised circuit experiments in schools, colleges and introductory technical laboratories.
Are connecting leads and meters included?
Only one Reversing Key / Commutator is confirmed. Leads, meters and the power supply must be verified separately.
Request the confirmed terminal layout and electrical rating from Lab Exports, or browse the Electrical and Electronics Laboratory Equipment category and compatible Laboratory Meters.
Recommended Product Image ALT Text: Reversing Key Commutator for changing current direction in physics laboratory circuits
