# 4QD \- Electric Motor Control: Electronic speed controllers for DC battery powered electric motors

> We sell a range of motor speed control products for DC battery powered electric motors that are tough, reliable, and easy to use\.

Generated by Yoast SEO v28.3, this is an llms.txt file, meant for consumption by LLMs.

## Pages
- [Manuals](https://www.4qd.co.uk/manuals/)
- [Distributors](https://www.4qd.co.uk/distributors/)
- [Videos](https://www.4qd.co.uk/videos/)
- [Contact](https://www.4qd.co.uk/contact/)
- [FAQs](https://www.4qd.co.uk/faqs/)

## Posts
- [CAN Capability](https://www.4qd.co.uk/can-capability/)
- [ProE\-Glide](https://www.4qd.co.uk/proe-glide/)
- [Our First Brushless Controller](https://www.4qd.co.uk/our-first-brushless-controller/)
- [Sometimes you just gotta do the maths\!](https://www.4qd.co.uk/sometimes-you-just-gotta-do-the-maths/)
- [Video compilation](https://www.4qd.co.uk/video-compilation/)

## FAQs
- [Do 4QD controllers work with brushless motors?](https://www.4qd.co.uk/faqs/do-4qd-controllers-work-with-brushless-motors/)
- [Can I disable regen braking?](https://www.4qd.co.uk/faqs/can-i-disable-regen-braking/)
- [Do 4QD controllers have constant torque mode?](https://www.4qd.co.uk/faqs/do-4qd-controllers-have-constant-torque-mode/)
- [Do 4QD controllers have closed loop control?](https://www.4qd.co.uk/faqs/do-4qd-controllers-have-closed-loop-feedback/)
- [What's the best controller for a model locomotive?](https://www.4qd.co.uk/faqs/whats-the-best-controller-for-a-model-locomotive/)

## Glossary
- [Water resistant coating](https://www.4qd.co.uk/glossary/water-resistant-coating/)
- [Inhibit Function](https://www.4qd.co.uk/glossary/inhibit-function/)
- [Under voltage protection](https://www.4qd.co.uk/glossary/under-voltage-protection/)
- [Thermal overload protection](https://www.4qd.co.uk/glossary/thermal-overload-protection/)
- [Tacho feedback](https://www.4qd.co.uk/glossary/tacho-feedback/)

## Products
- [Domino Twist Grip Throttle](https://www.4qd.co.uk/product/domino-twist-grip-throttle/): A motorcycle type twist grip throttle that has an internal 5k potentiometer\. It is suitable for use with all 4QD controllers and is popular with Greenpower cars and electric motorcycles\.
- [Pro\-100: 12V \- 48V, 100A, programmable\.](https://www.4qd.co.uk/product/pro-100-12v-48v-100a-programmable/): Our new Pro\-100 has been designed specifically with industrial applications in mind\. It's a little brother to the Pro\-160, just as clever but not quite as strong\. About as strong as the DNO\-10 but much smarter\.
- [Pro\-360: 12V \- 84V, 360A, programmable\.](https://www.4qd.co.uk/product/pro-360-12v-84v-360a-programmable/): The Pro\-360 is our new high power controller\. The LCD display shows you voltage, current, and temperature\. It's got inputs for radio control, dead mans handle, slow / fast modes, motor temperature, speed sensing, limit switches and more\. Air and liquid cooled options are available\.
- [Pro\-160: 12V \- 84V, 200A, programmable\.](https://www.4qd.co.uk/product/pro-160/): A full H\-bridge controller with a wide range of features\. Its unique detachable LCD display lets you see battery voltage, current, temperature, and more\. Inputs include radio control, dead\-mans handle, slow / fast modes, motor temperature, speed sensing, limit switches and more\.
- [DNO: Reversing, 12V \- 36V, 100A\.](https://www.4qd.co.uk/product/dno/): A popular mid\-sized controller with built\-in reversing suitable for use in 12V to 36V applications\.
\<br class="" /\>DNOs are commonly used in small / mid\-sized locos, electric vehicles and industrial applications\.

## Knowledgebase
- [Pro\-100 Fault Codes](https://www.4qd.co.uk/docs/pro-100-fault-codes/)
- [Greenpower notes](https://www.4qd.co.uk/docs/greenpower/)
- [The Maths Behind a Greenpower Car](https://www.4qd.co.uk/docs/the-maths-behind-a-greenpower-car/)
- [DCC / Airwire Interface](https://www.4qd.co.uk/docs/airwire-interface/)
- [Push Button \- Forward / Off / Reverse Operation](https://www.4qd.co.uk/docs/push-button-forward-off-reverse-operation/)

## Categories
- [Uncategorised](https://www.4qd.co.uk/category/uncategorised/)
- [Product News](https://www.4qd.co.uk/category/product-news/)
- [Industrial Blog](https://www.4qd.co.uk/category/industrial-blog/)
- [News](https://www.4qd.co.uk/category/news/)

## FAQ Categories
- [Choosing a controller](https://www.4qd.co.uk/faq-category/choosing-a-controller/)
- [Installation questions](https://www.4qd.co.uk/faq-category/category-2/)
- [Features](https://www.4qd.co.uk/faq-category/features/)
- [Miscellaneous](https://www.4qd.co.uk/faq-category/miscellaneous/)
- [Batteries](https://www.4qd.co.uk/faq-category/batteries/)

## Product categories
- [Throttles \(pots\)](https://www.4qd.co.uk/product-category/accessories/throttles-pots/)
- [Interfaces](https://www.4qd.co.uk/product-category/accessories/interfaces/)
- [Fuses \& Protection](https://www.4qd.co.uk/product-category/accessories/fuses/)
- [Connectors](https://www.4qd.co.uk/product-category/accessories/connectors/)
- [Switches](https://www.4qd.co.uk/product-category/accessories/switches/)

## Product tags
- [locomotives](https://www.4qd.co.uk/product-tag/locomotives/)
- [golfbuggies](https://www.4qd.co.uk/product-tag/golfbuggies/)

## Optional
- [Sitemap index](https://www.4qd.co.uk/sitemap_index.xml)