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Active Energy Management For
Drive Controller

Sustainable Peripheral Equipment
For Drive Controller

Whitepaper Active Energy Management For Drive Controller   Whitepaper Sustainable Peripheral Equipment For Drive Controller.
One device for many application - Active
Energy Management For Drive Controller.
  From braking resistor to energy storage
solutions - Sustainable Peripheral
Equipment For Drive Controller.
Download Whitepaper   Download Whitepaper


Safe brake resistor in PTC technology

With four mechanical and electrical ranges of 35, 70, 105 and 140 watts continuous power on a heat sink, the PTC brake resistors cover the power requirements of small frequency inverters and servo controllers. Similar to the level of wire-based brake resistors, the impulse power ratings are of major importance for the applications and have a factor of 35 with a 1 percent duty cycle. The elements which may be installed in the inverter´s enclosure are also known as ballast resistors and have an IP20 protection class. Several mechanical designs are available in the series. Customer requirements are implemented   as necessary when the order involves sufficient quantities. The resistance values for each type are dynamic with respect to the temperature at the PTC (see R(T) curve) and the applied voltage.



PTC brake resistors - resistors with
an integrated self-protection function.
The resistance value of these
resistors increases up to high
resistance at a defined temperature.

Rated Power: 35 - 140 W
Resistances: 44 bis 1.750 Ohm
Protection class: IP20


More information

Safe brake resistors in wire-wound technology

Safe brake resistors for electric drive technology are subject to specific requirements. High pulse load capacity with controlled surface temperature including a conclusive safety concept with continuous overload is required.
Taking all parameters into account, we achieved an optimum with our safe brake resistors in wire-wound technology. In compliance with relevant standards, subcomponents were selected and installed in a stable, anodised aluminum housing by means of specific design measures.
The result is something we are proud of: Particularly impulse-resistant, low-induction resistors with a specific safety concept combined with a long service life.

Data sheet BWx


Data sheet AWx


Our single brake resistors BWx are
available in the series 150, 200, 250,
350, 375, 500, 600, 1000.


Our single brake resistors AWx are
available in the series 300 or in
device-specific design.

More information   More information



Our modular system for safe brake resistor in wire-wound technology

We manufacture resistor combinations by an extensive set of accessories for high performance applications. The modular system is based on individual modules of the BWD series with nominal output of 100 to 400 watt. You can find the individual specifications in the data sheets below. In addition to its high performance, this modular system combines a compact design with extreme flexibility. As a result, the brake resistor is optimized according to each individual application specification.

Optimized to the requirements of your application:

Required power - no „unnecessary over-dimensioning“
Many resistance values – based on the inverters requirements
Mechanical design – according to the existing installation space
Assembly - horizontal or vertical
Protection class IP 20 or IP 65* - according to installation location and environmental conditions
Individual modules with UL and CSA standard approval
Several braking resistors in a resistor combination, e.g. for moving and hoisting gear
Optional: Temperature switch, strain relief, protective cover, etc.







Rated Power: 0,24 - 3,6 kW
Resistance: 0,55 - 2.700 Ohm
Protection class: IP65
Mounting: wall mounting (or mounting on the control cabinets top)
Benefits: compact, grip protection


Rated Power: 0,2 - 7,2 kW
Resistance: 1 - 17.360 Ohm
Protection class: IP20 or IP65
Mounting: wall mounting
Benefits: compact , versatile base plates


Rated Power: 0,2 - 2,4 kW
Resistance: 0,8 - 5.580 Ohm
Protection class: IP20 or IP65
Mounting: wall mounting
Benefits: resistor in case, compact


More information
  More information   More information
BWx...K...L / BWx...K...K
  BxP / BxH

Rated Power: 0,1 - 7,2 kW
Resistance: 1 - 14.940 Ohm
Protection class: IP20 or IP65
Mounting: (wall mounting and) mounting on the control cabinets top
Benefits: very variable


Rated Power: 0,1 - 0,8 kW
Resistance: 3 - 830 Ohm
Protection class: IP65
Mounting: wall mounting
Benefits: chimney effect, protection by subframe


Rated Power: 0,2 - 4,8 kW
Resistance: 1 - 7.400 Ohm
Protection class: IP20 or IP65
Mounting: wall mounting
Benefits: grip protection with a cover







More information

  More information  

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Complete active energy management systems Unser großer Schaltschrank



KTS refers to the standard control cabinets that we offer in case there is no space for our active energy management systems in the control cabinet of the machine or plant. We design the KTS individually to suit the customer and deliver it as ready-to-connect.


KTS-U - Energy in case of emergency

The systems with the designation KTS-U deliver the necessary energy completely without interruptions to bridge voltage fluctuations or power failures and thereby help the machine or plant to reach a safe position.


KTS-C - System for cyclical uses

The KTS-C series is used to buffer generative energy on its own or in combination with a UPS function. It is prepared for cyclical loads.



Safe discharge unit SDUVKoch-SDU-Entladeeinheit

Connectible, overload-protected discharge unit for capacitances built into the KTS.




24 Volt Emergency Energy Supply NEVNOtstrom Energieversorung der Michael Koch GmbH erweitert die Vielfalt der Produkte die im Fabrikle produziert werden.

Power supply for the safe supply of 24-volt mains from the machine or plant from the storages of the KTS.



Futher information to the accessories for electronics you will find now here!


Of course, KOCH is also available to provide sizing support.

Your competent contact for all active energy management systems and safe brake resistors is:

Jens Knaus

Call us or send us an email. We will get back to you promptly.

Tel. +49 7251/96 26 238










              Dies ist das Zertifikat, dass bestätiget das wir für die Siemens Produkte auditiert worden sind.              Certificate Siemens Product Partner
Data sheet                                      Siemens Audit Confirmation           Certificate Product Partner

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