Universal Brake Chopper
For protection against overvoltage in the DC intermediate circuit.
Overview
A brake chopper is used to handle the excess energy generated during the deceleration or braking of electric drives, such as motors in elevators, conveyor belts or machine tools. Normally, this energy is fed back into the DC intermediary circuit of the frequency inverter. However, when the DC intermediary circuit reaches its maximum voltage limit, the excess energy must be dissipated to prevent damage to the inverter or the connected equipment.
This is where the brake chopper comes into play. It converts the excess electrical energy into heat, which is then safely dissipated. This is particularly important in applications where frequent or rapid braking is required or where the motor is driven as a generator in servo mode.
Universally retrofittable brake choppers
We offer "fully customizable" brake chopper solutions that are connected directly to the DC intermediary circuit without an additional power supply, which enables simple (retrofitting) integration into an existing system.
Extra low voltage brake chopper
- 12-75 VDC
- 100 W to 2 kW continuous
- 1-10 kW peak
Low voltage brake chopper
- 80-650 VDC
- 100 W to 2 kW continuous
- 1-10 kW peak
Features
- Customizable to your specifications
- Retrofittable
- Freely programmable behavior
- Reliably protects against overvoltage
Applications
- ›Frequent braking (e.g. when changing direction)
- ›Conveyor technology, lifts, lifting and linear drives, vehicles and fitness equipment
- ›Retrofitting to existing frequency inverters without brake chopper
Not sure which module you need?
The sizing tool takes you from DC-link voltage through braking power and braking cycle to the installation situation — and names the brake chopper and the braking resistor from the Akrodyn range that fit. No sign-up, straight in the browser.
Standard modules in stock
These brake choppers are in stock and can be ordered directly. Outside these specifications we are happy to develop a brake chopper module for your specific duty cycle. Get in touch.
The catalogue cannot be reached right now. You will find the modules in the shop.
Nothing that fits?
We size the switching stage, the braking resistor and the cooling against your real duty cycle — including DC-link and energy management.
Got an idea or a project? Let's get started.
One hour, free of charge, by video or at our place in Zurich. We look at where the technical risks are, what can be shortened and what the next sensible step would be. No pitch, no slide deck. You leave with more clarity than you arrived with — even if we never work together.
Book an engineering sparringOr get in touch directly: info@akrodyn.com · +41 44 599 20 60
You speak straight to the engineer who will work on your project afterwards.