KEB’s brake motors combine the latest AC motor technology with DC spring-set brakes. The brakes can be equipped with various options, including noise-reduced versions for theater applications. KEB motors have relatively low inertia, making them ideal for high-cycle applications such as conveyors or indexers.
Motors
Brake Motors
Product Details
Why Choose KEB Brake Motors
The spring-set brake motor design provides secure stopping and holding functions during power interruptions, which makes them suitable for critical safety applications. KEB’s brake motors include heavy-duty industrial brakes and sound-sensitive brake motors for different operational needs.
This means a flexible product line that can be tailored to specific technical requirements, including IP65 washdown motors for food processing and VFD-ready brake motors that integrate seamlessly with modern automation systems.
Key Features
KEB motors are available with different worldwide voltages and are offered in IE2 or IE3 efficiency levels.
At the heart of the brake motor is KEB’s spring-set brake. The brakes can be featured with a number of different options, including a manual hand release or noise-reduced versions for theater applications.
Additional features include:
• Feedback devices with standard encoder formats: TTL, HTL, Sin/Cos, and BiSS
• IP54 protection as standard, with optional IP65 washdown versions using KEB’s Type 28 spring-set brake
• Thermal protection options for overload conditions
• Forced ventilation for continuous or high-duty applications
KEB motors are designed for flexible installation and long service life:
• Compatibility with both IEC and NEMA flanges (foot-mounted or flange-mounted configurations)
• Sizes up to IEC 225 (60 Hp)
• Optional corrosion-resistant coatings and Viton seals for harsh environments
The industrial motor brakes provide consistent torque over a wide operating range, ensuring dependable stopping performance. Optional microswitches and adjustable torque rings allow engineers to fine-tune brake performance for their application.
Combined with flexible winding configurations, this makes KEB’s spring-set brake motors highly adaptable to global installation requirements.
Tech Specs
Electrical
• Voltage class: 230V and 460V are standard (208, 400, 500, 690 available upon request)
• Motor poles: 4 is standard; 2, 6, 8 and multi-pole designs are optional
• Insulation class: F
• Efficiency: Available in IE2 and IE3 efficiency classes, meeting international energy standards
Mechanical
• TEFC standard
• Duty cycle: S1 continuous standard
• S2, S3, S4 available (Fanless designs)
• Explosion Proof: ATEX Zone 1, 2, 21, or 22 available
• Mounting: Options include foot-mounted and flange-mounted designs (IEC B5, B14, and NEMA C-Face up to 215TC, 7.5Hp)
• Shaft configurations: Solid shaft, hollow shaft with keyway, or shrink disc designs available to match various gearbox connections
Certifications
• UL
• CE
• ISO 9001 certified quality management system
Environment
• Protection Type: IP54 standard (IP65 optional)
• Operating Temperature: -20 … 40° C
• Maximum altitude: 1000m with possible derate above
• For washdown applications, IP65 washdown motors can be supplied with stainless steel shafts, Viton seals, and corrosion-resistant coatings
Options
A variety of winding configurations is available to meet different voltage and frequency requirements.
Optional IP65 designs are available for added protection.
All KEB spring-set brake options are offered, including a quiet brake design, manual hand release, microswitch, and adjustable torque ring.
For the encoder, standard formats offered include Incremental (TTL and HTL), BiSS and Sin/Cos.
IEC B5 and B14 flanged motors are also available up to IEC size 225 (60Hp)
Optional IP65 versions, utilizing KEB’s Type 28 spring-set brake, are also available for washdown applications.
NEMA C-Face flanges are available up to 215TC (7.5 HP).
Additional options include forced ventilation for higher duty cycles, integrated thermal protection (PTC, PTO) for overload monitoring, and VFD-ready brake motors designed for smooth operation with frequency inverters.
Material Handling and Conveyors
KEB’s high-cycle brake motors are widely used in material handling applications such as conveyors and packaging lines.
Their low-inertia design allows smooth operation under frequent start/stop cycles, making them ideal for:
• Pick-and-place systems
• Automated packaging lines
• Distribution centers
Elevators and Hoists
In vertical lift systems, spring-set brake motors engage automatically during power interruptions to ensure load safety.
KEB brake motors are trusted in:
• Passenger and freight elevators
• Overhead hoists
• Features like manual release options improve reliability for service operations and emergencies
Theatre and Stage
For theatre and performance venues, quiet brake motors preserve audience experience while ensuring safety.
Typical uses include:
• Stage hoists and moving scenery
• Automated lighting rigs
• Combined with encoder feedback, operators achieve precise, low-noise positioning
Food and Beverage
KEB’s IP65 washdown motors withstand caustic cleaning agents and moisture in food and beverage applications.
With stainless steel shafts and Viton seals, they deliver reliable performance in:
• Bottling plants
• Dairies and meat-processing facilities
• Continuous operation while meeting hygiene standards.
FAQs
What Makes KEB Brake Motors Different?
KEB brake motors combine advanced AC motor technology with spring-set brakes. They are engineered for reliability in demanding applications and can be configured with options like manual hand release, microswitches, and encoder feedback.
Their low-inertia design supports high-cycle brake motor performance, while optional quiet brake motors minimize noise in sensitive environments such as theaters. This combination of adaptability and technical depth makes them a strong choice for engineers needing precision and safety.
Which Applications Are They Best For?
KEB brake motors are used across a wide range of industries, including material handling, elevators, stage technology, food and beverage, and hazardous environments. Their adaptability makes them suitable for both standard and highly specialized use cases.
What Protection Ratings Are Available?
The standard protection rating is IP54, providing reliable resistance against dust and splashing water. For more demanding conditions, IP65 washdown motors are available with stainless steel shafts, Viton seals, and corrosion-resistant coatings. These upgrades allow safe operation in washdown environments and extend motor life in harsh industrial settings.
Can They Work With VFDs?
Yes. KEB motors are designed as VFD-ready brake motors, which allows them to integrate seamlessly with variable frequency drives. Engineers can achieve precise motion profiles and energy efficiency without compromising safety or reliability.
