SKU: 52995401671

Electric Motor Model

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Description

Electric Motor ModelElectric Motor Model Investigate the relationship between voltage supplied to the rotor and the polarity and position of magnets a hands on window into the principles powering every electric motor. The Electric Motor Model (SE. EM1412 01) is a clear, open construction demonstration motor designed for physics and STEM laboratories. By exposing the rotor, magnets, and commutator, students can observe exactly how electrical energy converts to mechanical

Electric Motor Model

Investigate the relationship between voltage supplied to the rotor and the polarity and position of magnets — a hands-on window into the principles powering every electric motor.

The Electric Motor Model (SE.EM1412-01) is a clear, open-construction demonstration motor designed for physics and STEM laboratories. By exposing the rotor, magnets, and commutator, students can observe exactly how electrical energy converts to mechanical rotation.

On applying 6V DC to the 4mm input sockets, the rotor begins rotating about its vertical axis. Students can then vary the supply voltage, reverse the connections, or reposition the magnets to directly observe how each variable affects rotor speed and direction — building a genuine conceptual understanding of electromagnetic motor principles.

Key features
  • Open-construction model — rotor, magnets, and commutator fully visible
  • Rotor rotates about vertical axis — clear, observable motion
  • 6V DC supply via standard 4mm sockets
  • Investigate effect of varying voltage on rotor speed
  • Investigate effect of magnet polarity and position on rotation
  • Commutator and brush contacts visible for circuit-switching study
  • Sturdy base with integrated 4mm input terminals
  • Ideal for secondary school physics and STEM curriculum
Student investigations
  • Voltage vs. rotor speed
Vary the DC supply voltage and observe how increasing or decreasing the voltage changes the rate of rotor rotation.
  • Magnet polarity
Reverse or reposition the permanent magnets and observe the effect on the direction and speed of rotor rotation.
  • Current direction
Swap the 4mm socket connections to reverse current flow through the rotor and observe direction reversal.
  • Commutator action
Observe how the commutator switches current direction each half-turn to sustain continuous unidirectional rotation.
Specifications
SKU SE.EM1412-01
Product name Electric Motor Model
Operating voltage 6V DC
Input connectors 4mm sockets
Rotor axis Vertical
Magnets Permanent magnets, adjustable polarity/position
Commutator Visible, with brush contacts
Construction Open-frame — all components visible
Application Voltage, polarity & rotor investigation
Curriculum Secondary school physics, STEM
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 52995401671

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Coffman, H
Battle Creek, US
★★★★★ 5
Cheap, and effective!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Looks good, works great, low cost. I'll be purchasing more in the future.
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Reviewed in the United States on May 12, 2026
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Amazon Customer
Natrona Heights, US
★★★★★ 4
Cute for coffee bar!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Great for above my coffee bar. Easy to mount and align. Seems stable!
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Reviewed in the United States on April 14, 2026
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Samuel Roberts
Grantham, US
★★★★★ 5
Great shelves, strong, secure, sturdy, decent size, unbeatable price.
Color: White, Number Of Shelves: 4, Size: 15.7in
Easy installation fits where we wanted them. Stable strong secure snug fit. Cleans easily with dust wipe. I would recommend buying these.
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Reviewed in the United States on May 19, 2026
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Clara
Charlottesville, US
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious. To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
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Reviewed in the United States on May 27, 2026
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Mo
Cuba, US
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
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Reviewed in the United States on May 21, 2026

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