Motor Protection Switches


Order No.:
81P0280
Manufacturer SKU:
3RV2021-4CA20


Order No.:
81P0281
Manufacturer SKU:
3RV2021-4CA25


Order No.:
81P0282
Manufacturer SKU:
3RV2021-4CA40
Order No.:
81P0283
Manufacturer SKU:
3RV2021-4DA10


Order No.:
81P0284
Manufacturer SKU:
3RV2021-4DA10-0BA0


Order No.:
81P0285
Manufacturer SKU:
3RV2021-4DA10-0DA0
Order No.:
81P0286
Manufacturer SKU:
3RV2021-4DA15


Order No.:
81P0287
Manufacturer SKU:
3RV2021-4DA20


Order No.:
81P0288
Manufacturer SKU:
3RV2021-4DA20-0BA0


Order No.:
81P0289
Manufacturer SKU:
3RV2021-4DA25


Order No.:
81P0290
Manufacturer SKU:
3RV2021-4DA40
Order No.:
81P0291
Manufacturer SKU:
3RV2021-4EA10


Order No.:
81P0292
Manufacturer SKU:
3RV2021-4EA10-0BA0
Order No.:
81P0294
Manufacturer SKU:
3RV2021-4EA15


Order No.:
81P0295
Manufacturer SKU:
3RV2021-4EA15-0BA0


Order No.:
81P0296
Manufacturer SKU:
3RV2021-4EA20
Order No.:
81P0297
Manufacturer SKU:
3RV2021-4EA20-0BA0


Order No.:
81P0298
Manufacturer SKU:
3RV2021-4EA25


Order No.:
81P0299
Manufacturer SKU:
3RV2021-4EA40
Order No.:
81P0300
Manufacturer SKU:
3RV2021-4FA10
Protect your electric motor effectively with a motor protection switch
The purpose of a motor protection switch (MSS) is to protect electric motors from overload. This can be a form of thermal overload caused by a mechanical overload. But it is also necessary to prevent non-starting or failure of external conductors with the help of a motor protection switch. Monitoring is therefore implemented thermo-mechanically, thermo-electrically or electronically.
Motor-protective circuit breakers are used, for example, with three-phase motors. They always have an overcurrent and a short-circuit current release device, and in some cases also an undervoltage release.
Buy motor protection switches - what to consider?
If you are looking for a suitable motor protection switch, it is important to take a close look at the electric motor to be connected. After all, the choice of the right motor-protective circuit breaker depends on the rated current of the motor. In addition, various standards may have to be observed. For example, if the motor-protective circuit-breaker is to provide overload protection and short-circuit protection for the cable and the motor. In this case, the motor protection switch must be installed at the beginning of the motor allocation in accordance with DIN VDE 0113.
Do you have questions about the motor protection switches in the Bürklin Elektronik online store? Or do you need detailed advice regarding the models shown? Don't hesitate and contact the Bürklin experts via telephone or e-mail! We are here for you and your questions.