The weight and motor frame length are reduced thanks to the special design
Large variety of options
Allows for custom combinations of motors and brakes
Function and wear monitoring diagnostic unit (optional)
With a contactless, continuous supply of information regarding the function and wear of each individual brake
Functional safety (optional)
With certification according to EN ISO 13849-1. For the area of event technology, the requirements of DIN 56950-1 are complied with.
Our mechanical brake is a DC-operated electromagnetic disk brake that is released electrically and applied using spring force. The brake is applied when the voltage supply is interrupted. It meets the basic safety requirements.
The brake can also be released mechanically if equipped with a manual brake release. The mechanical release is enabled by a hand lever that resets automatically or an adjustable set screw. The brake is controlled by a brake control that is installed in either the motor terminal box or the control cabinet.
The variability in our modular brake design means that you can choose from up to 3 different brake sizes for installation on the motor required. Furthermore, the braking torque can also be varied by using different spring packages. The resulting multitude of braking torques also ensures the solution meets your requirements.
You can also choose safety-rated brakes that comply with EN ISO 13849-1 from our module brake system, which are specifically tailored for requirements in the area of functional safety. They enhance a safe brake system enabling the implementation of the "safe brake actuation" and "safe brake hold" safety functions based on your required performance level.
Our modular brake system also includes safety-rated brakes that can be used for horizontal operation up to PL d and vertical operation up to PL c in accordance with EN ISO 13849-1.
A popular solution for implementing safe brake systems in industrial environments or in event technology applications is the use of 2 parallel motors with individual brakes – a safe but not particularly compact or cost-effective solution.
With the state-of-the-art BF../BT.. double brakes, SEW‑EURODRIVE makes it possible for you to implement a safe brake system with 2 individual brakes on one single drive. Both of these double brake designs achieve the maximum performance level e (PL e) in industrial systems and event technology applications (in theaters, for instance).
The advantages of the double brake: Less installation space, less installation work and therefore lower costs. Supplementing a safe brake system, they provide completely new possibilities for man and machine in the area of functional safety.
Our DR.. motor series can be combined with the ideal BE.. brake to match your requirements for braking torque or braking work. Moreover, brakes mounted on motors larger than size 90 have an additional special feature. The brake itself is mounted on a friction plate, which only has to be attached to the end shield. That allows you to replace the unit with a larger or smaller brake without needing to open, remove or change the motor.
Our brakes can also be released mechanically when equipped with a manual brake release. Two options are available for manual brake release:
You can choose from a range of brake controls for controlling disk brakes with a DC coil, based on the requirements and the operating conditions. All brake controls are fitted as standard with varistors to protect against overvoltage.
The brake controls are installed either directly in the terminal box on the motor or in the control cabinet. For motors of thermal class 180 (H) and explosion-proof motors (except the /3D category), the control system must be installed in the control cabinet. The different housings for the brake rectifiers have different colors (= color code) to make them easier to distinguish.
The supply voltage for brakes with an AC connection is either supplied separately or taken from the supply system of the motor in the wiring space. The supply can come from the motor line voltage only when motors with a fixed speed are used. The supply voltage for the brake must be supplied separately with multi-speed motors and for operation with a frequency inverter.
Furthermore, bear in mind that the brake response is delayed by the residual voltage of the motor if the brake is powered by the motor line voltage. The brake application time specified in the technical data for the brake, which is t2l for cut-off in the AC circuit, applies only when the supply is separate.
|Motor type||Brake type||Wtot|
|Braking torque graduation|
The type and number of brake springs used determine the level of the braking torque. Unless otherwise specified in the order, the brake is fitted with the maximum braking torque (MBmax) as standard when ordered as a single brake. The standard braking torque in the stand-alone motor and the gearmotor is dependent on nominal motor torque and can deviate from the maximum braking torque. Reduced braking torques (MBred) can be selected in the same brake size thanks to additional brake spring combinations.
|Reduced braking torques MBred|
|t1 10-3 s||t2 10-3 s||PB W|
The following tables list the technical data for brake control systems for installation in the motor terminal box and in the control cabinet. The different housings have different colors (= color code) to make them easier to distinguish.
|Type||Publication number||Color code|
|BG||Half-wave rectifier||AC 230 – 575 V||1.4||BG 1.4||827 881 4||Black|
|AC 150 – 500 V||1.5||BG 1.5||825 384 6||Black|
|AC 24 – 500 V||3.0||BG 3||825 386 2||Brown|
|BGE||One-way rectifier with electronic switching||AC 230 – 575 V||1.4||BGE 1.4||827 882 2||Red|
|AC 150 – 500 V||1.5||BGE 1.5||825 385 4||Red|
|AC 42 – 150 V||3.0||BGE 3||825 387 0||Blue|
|BSR||Half-wave rectifier + current relay for switch-off in the DC circuit||AC 150 – 500 V||1.0||BGE 1.5 + SR 11||825 385 4|
826 761 8
|1.0||BGE 1.5 + SR 15||825 385 4|
826 7621 8
|825 385 4|
826 246 2
|AC 42 – 150 V||1.0||BGE 3 + SR11||825 387 0 |
826 761 8
|1.0||BGE 3 + SR15||825 387 0|
826 762 6
|1.0||BGE 3 + SR19||825 387 0|
826 246 2
|BUR||Half-wave rectifier + voltage relay for switch-off in the DC circuit||AC 150 – 500 V||1.0||BGE 1.5 + UR 15||825 385 4|
826 759 6
|AC 42 – 150 V||1.0||BGE 3|
+ UR 11
|825 387 0|
826 758 8
|BS||Varistor protection circuit||DC 24 V||5.0||BS24||826 763 4||Water blue|
|BSG||Electronic switching||DC 24 V||5.0||BSG||825 459 1||White|
|BMP||One-way rectifier with electronic switching, integrated voltage relay for switch-off in the DC circuit||AC 230 – 575 V||2.8||BMP 3.1||829 507 7||-|
|Type||Publication number||Color code|
|BMS||One-way rectifier as BG||AC 230 – 575 V||1.4||BMS 1.4||829 830 0||Black|
|AC 150 – 500 V||1.5||BMS 1.5||825 802 3||Black|
|AC 42 – 150 V||3.0||BMS 3||825 803 1||Brown|
|BME||One-way rectifier with electronic switching as BGE||AC 230 – 575 V||1.4||BME 1.4||829 831 9||Red|
|AC 150 – 500 V||1.5||BME 1.5||825 722 1||Red|
|AC 42 – 150 V||3.0||BME 3||825 723 X||Blue|
|BMH||One-way rectifier with electronic switching and heating function||AC 230 – 575 V||1.4||BMH 1.4||829 834 3||Green|
|AC 150 – 500 V||1.5||BMH 1.5||825 818 X||Green|
|AC 42 – 150 V||3.0||BMH 3||825 819 8||Yellow|
|BMP||One-way rectifier with electronic switching, integrated voltage relay for cut-off in the DC circuit||AC 230 – 575 V||1.4||BMP 1.4||829 832 7||White|
|AC 150 – 500 V||1.5||BMP 1.5||825 685 3||White|
|AC 42 – 150 V||3.0||BMP 3||826 566 6||Light blue|
|AC 230 – 575 V||2.8||BMP 3.1||829 507 7||-|
|BMK||One-way rectifier with electronic switching, 24 VDCcontrol input and cut-off in the DC circuit||AC 230 – 575 V||1.4||BMK 1.4||829 883 5||Water blue|
|AC 150 – 500 V||1.5||BMK 1.5||826 463 5||Water blue|
|AC 42 – 150 V||3.0||BMK 3||826 567 4||Bright red|
|BMV||Brake control unit with electronic switching, DC24 Vcontrol input and fast cut-off||DC 24 V||5.0||BMV 5||1 300 006 3||White|
|BST||Safety-related brake control with electronic switching and DC link supply||AC 460||0.6||BST 0.6S||08299714||-|
|AC 400||0.7||BST 0.7S||13000772||-|
|AC 230||1.2||BST 1.2S||13001337||-|
SEW‑EURODRIVE drives can be fitted with optional safety-rated components such as brakes and/or encoders.
An integrated safety-rated brake is clearly labeled by the FS logo (e.g. FS02) on the motor nameplate. This allows for the implementation of safety functions and their performance level evaluation according to EN ISO 13849-1.
Safety functions with our brakes
Our static and dynamic brake diagnostics for the MOVI-PLC® controller is also available as a supplement to the safe brake system.
|BF.. double disk brake||BT.. double disk brake|
|Designed for applications in an industrial environment||Designed for applications in the event technology sector|
|Optionally designed as a safe double disk brake for use in "functional safety" as per EN ISO 13849-1||Always designed as a safe double disk brake for use in "functional safety" as per EN ISO 13849-1|
|Supplements a safe brake system up to maximum performance level e||Supplements a safe brake system up to maximum performance level e|
|Equipped and certified according to DIN 56950-1 for event technology|
|Exceptionally quiet thanks to special damping features|
As well as the HR manual brake release with automatic re-engaging function that can be used to release both individual brakes in the double disk brake simultaneously, a new HT manual brake release option is also available. In addition to the basic function of the HR option, it includes a special mechanical component on the manual release lever. This allows for the release of either of the individual brakes or both of the brakes together.
The double disk brakes are available from August 2015 in sizes BF11/BT11, BF20/BT20 and BF30/BT30 and with a rated braking torque from 2 x 20 Nm up to 2 x 300 Nm.
The sensor system provides continuous fully contactless function and wear monitoring for each individual brake. It displays the brake switching state, monitors the permitted wear and continuously measures the current working air gap.
|BF..||Spring-loaded double disk brake with size specification for industrial applications|
|BT..||Spring-loaded double disk brake with size specification for theater applications|
|Motor type||Brake type||Winsp|
|Braking torque graduation|
The double disk brake can be used in industrial applications with or without "functional safety." The extremely quiet BT.. design with "functional safety," which meets all the specific requirements of event technology standards, is available for event technology applications (such as in theaters).