yaskawa-drives-family-3

Yaskawa Braking Resistors

Yaskawa Electric has existed since 1915, in 1967 it entered the North American drives market with individual brand labels including MagneTek, Saftronics, Omron IDM, and EMS. Yaskawa acquired MagneTek, and eventually ended its branding agreements with all other companies.

If you’re a distributor, integrator, or end user of Yaskawa drives you will find this page useful for finding information on resistors, cross-references against Yaskawa part numbers, and getting a quote for a braking resistor.

All of our resistors are fully manufactured in Canada and are cULus listed. Whether you’re looking for a specific part number, or a customized product designed for your application, we can help. We always provide the best prices, lead times, and quality.

Yaskawa provides a standard resistor list for each of their drives for basic applications, with what they believe are typical duty cycles (3% or 10% of 100 second cycle times).

Many drives come with built in braking transistors, allowing for direct connection of braking resistors. Some require an additional braking unit (starting with CDBR- or LKEB-). Sometimes to achieve a higher braking power they require multiple units to be connected in parallel or series. Each braking unit requires its own braking resistor; rather than having to purchase and install separate enclosures, these resistors are bundled into a single enclosure.

You have three main options for selecting the appropriate resistor:

  1. If you have a Yaskawa part number (URS000…., or R7…), refer to the cross-reference table at the bottom
  2. If you have a Yaskawa drive, and are looking for a typical resistor for a typical application, Browse by Drive
  3. If you require higher braking power (for a more intensive duty cycle or higher braking torque), provide any details you have and we’ll help you size something perfect for your application

Please note, if you are a Yaskawa Canada customer, your resistor part numbers will be YMC-xxS or YMC-xxH. We have also developed a complete cross-reference for this and can help you if you send us an email or give us a call.

Browse by Drive

G7 Drive

The Yaskawa G7 drives up to 20HP have standard built in brake choppers meaning a braking resistor can be connected out of the box. Additionally, Yaskawa offers braking units to connect braking resistors for drives above 20 HP. The resistors are sized assuming 10 seconds maximum on-time every 100 seconds.

A1000

The Yaskawa A1000 drives up to 50HP have standard built in brake choppers meaning a braking resistor can be connected out of the box. Additionally, Yaskawa offers braking units to connect braking resistors for drives above 50 HP. The Yaskawa resistors are sized assuming a maximum braking time of 10s each cycle.

P1000

The Yaskawa P1000 drives up to 50HP have standard built in brake choppers meaning a braking resistor can be connected out of the box. Additionally, Yaskawa offers braking units to connect braking resistors for drives above 50 HP. The Yaskawa resistors are sized assuming a maximum braking time of 10s each cycle.

J1000

The Yaskawa J1000 is a smaller drive which can accept an external braking resistor directly for braking applications up to 7.5 HP. The Yaskawa resistors are rated assuming a total cycle time of 100 seconds.

V1000

The Yaskawa V1000 is a smaller drive which can accept an external braking resistor directly for braking applications up to 25 HP. The Yaskawa resistors are rated assuming a total cycle time of 100 seconds.

L1000A

The L1000A includes a built-in braking transistor up to 40 HP (200-240 VAC and 380-480 VAC). For L1000A drives above 40 HP with braking torque requirements, a CDBR Braking Unit is available as an option in addition to the braking resistor.

L1000E

The L1000E includes a built-in braking transistor up to 50 HP (200-240 VAC and 380-480 VAC). For L1000E drives above 50 HP with braking torque requirements, a CDBR Braking Unit is available as an option in addition to the braking resistor.

Dynamic Braking Units (CDBR and LKEB)

When working with Yaskawa drives, you will frequently see that they provide an option for dynamic braking by purchasing a braking unit, starting with model numbers CDBR- or LKEB-.

If you refer to our Braking Resistor tables for each of the drives, Yaskawa recommends certain combinations of drives and braking units for typical applications. Depending on the ratings of the braking unit, you can achieve additional braking power by using a more powerful braking resistor.

The most optimal way to size a resistor is to provide us your braking unit model number, and your required braking power by using our braking resistor sizing calculator.

If you are looking for a more ideal solution than connecting different braking units in parallel, we can provide a cost-effective and high quality chopper and resistor solution. Get in touch with us and we’ll help you find the best configuration for your system.

Browse by Cross-Reference