Altra Renewables

E-Shop login

Forgot password Apply for access

Electromagnetic Brakes

by Warner Electric

Pre-assembled on/off dry failsafe electromagnetic brakes for pitch or yaw motor brakes on wind turbines.

PK35, PK60, PK100

  • Up to 37 Nm I Multi-step braking versions available
  • Hand release & IP67 protection on request 



  • Torque according to disc diameter and number of calipers
  • Floating magnet and fixed disc
  • EC 95/16 certified l Hand release equipped
  • Over excitation (dual voltage)
  • Micro-switch equipped (IP66)
  • Equipped with airgap adjustment screws


Altra Renewable Energy is your access to a uniquely wide range of products and services. Having consolidated five brands, within the Altra Motion Group, we offer a comprehensive portfolio from individual components to complete solutions. View and download our product range brochure.

Animated introduction to our product range for Wind Turbines.
Visit our Film Resource Center for a further introduction to our product range.

Renewable Energy Solutions


DESIGN SERVICES is the starting point of the process ensuring that your braking solution is just right for your specific operation.

+Read more


PRODUCTS covers our wide range of solutions for your operation. Our extensive testing and product quality is second to none.

+Read more


SUPPLY CHAIN SERVICES allows us to meet your needs no matter what they are – and no matter where you are.

+Read more


AFTER SALES SUPPORT is your guarantee that we will never let your operation out of mind or sight. We deliver way beyond products.

+Read more uses cookies for the functionality on the website and to collect data. Cookies are a small text-only string of information which is stored on your hard drive. The cookies are used to remember your choice. 

You can de-select cookies in your browser, if you want to avoid all cookies. If you de-select cookies on your browser can't remember your choice and therefore you can't use all of the features on the website. Read more about the use of cookies on here. uses cookies for the functionality on the website and to collect data. Read more about the use of cookies on here.