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Speed Controllers

Speed controllers come in all shapes and sizes. Depending on the application, as to which one you will use.

Some common types of motor controllers.....

Brushed motor controller: Series Wound, Permanent magnet

Brushless motor controller: Brushless DC permanent magnet, AC induction, Synchronous Reluctance permanent magnet

Brushless DC motor controllers

KLS-8080N – High Power Opto-Isolated Sinusoidal Motor Controllers

Voltage 72 - 168v (depending on model)

Continuous Current 300 - 1200A (depending on model)

Peak Current up to 140 - 120A (depending on model)

supports regen braking

built in heat sink for air cooling

optional water cooling

Kelly Controller website

KLS14401-8080N                 $1450

Nominal input voltage: 24-144V

Max battery voltage: 173V

Continuous Current: 160A-240A

Peak current: 400A

Kelly 8080N 14401 speed controller 1.jpg
Kelly Speed Controller 4.jpg
Kelly Speed Controller 3.jpg

KLS-MN - Sealed Sinusoidal Wave Brushless DC Controller

Voltage 30 - 72v (depending on model)

Continuous Current 70 - 110A (depending on model)

Peak Current up to 160 - 380A (depending on model)

supports regen braking

KLS-H – Sealed Sinusoidal Wave Brushless DC Controller

Voltage 60 - 84v (depending on model)

Continuous Current 60 - 200A (depending on model)

Peak Current 150 - 500A (depending on model)

supports regen braking

Kelly Speed Controller 5.jpg

KLS-8080I/IPS - High Power Opto-Isolated Sinusoidal Wave Brushless Motor Controller

Voltage 72 - 144v (depending on model)

Continuous Current 80 - 280A (depending on model)

Peak Current up to 200 - 700A (depending on model)

supports regen braking

built in heat sink

new 8080I controller 2.jpg
new 8080I controller.jpg
Kelly Speed Controller 7.JPG
Brushless DC controller

Cheaper controllers that don't require high performance

Voltage 12 - 144v (depending on model)

Continuous Current 25 - 300A (depending on model)

Peak Current 60 - 600A (depending on model)

supports regen braking

Brushed motor controller

KDH-E - High Power Opto-Isolated Brushed DC Series/PM Controller

Voltage 24 - 144v (depending on model)

Continuous Current 180 - 360A (depending on model)

Peak Current up to 800A (depending on model)

supports regen braking on permanent magnet motors

series wound kelly controller.jpg
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