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Motor circuit breakers

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Motor circuit breaker 3P 0.75kW 1.6-2.5A GZ1E07 Schneider

Motor circuit breaker 3P 0.75kW 1.6-2.5A GZ1E07 Schneider

ASAJ Sp. z o.o.
Starting at
€16.26 +VAT
PLN 74.77
  • EAN: 3606480567834
  • Manufacturer: SCHNEIDER
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ASAJ Sp. z o.o.
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Motor circuit breaker PKZM0, Ir = 2.5-4A PKZM0-4-EA 189901 EATON

Motor circuit breaker PKZM0, Ir = 2.5-4A PKZM0-4-EA 189901 EATON

ASAJ Sp. z o.o.
Starting at
€19.86 +VAT
PLN 91.32
  • EAN: 4015081878970
  • Manufacturer: EATON
Supplier
ASAJ Sp. z o.o.
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Legrand 6112-460001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

Legrand 6112-460001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

ASAJ Sp. z o.o.
Starting at
€31.94 +VAT
PLN 146.83
  • EAN: 5904182640120
  • Manufacturer: LEGRAND
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ASAJ Sp. z o.o.
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Motor circuit breaker PKZM0, Ir = 6,3-10A PKZM0-10-EA 189903 EATON

Motor circuit breaker PKZM0, Ir = 6,3-10A PKZM0-10-EA 189903 EATON

ASAJ Sp. z o.o.
Starting at
€23.37 +VAT
PLN 107.45
  • EAN: 4015081878994
  • Manufacturer: EATON
Supplier
ASAJ Sp. z o.o.
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3P motor circuit breaker 0.25kW 0.63-1A GV2ME05 Schneider

3P motor circuit breaker 0.25kW 0.63-1A GV2ME05 Schneider

ASAJ Sp. z o.o.
Starting at
€21.44 +VAT
PLN 98.58
  • EAN: 3389110343038
  • Manufacturer: SCHNEIDER
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ASAJ Sp. z o.o.
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Motor protection switch Legrand 606807 Thermomagnetic Screw connection Lever Complete device in IP3X housing

Motor protection switch Legrand 606807 Thermomagnetic Screw connection Lever Complete device in IP3X housing

ASAJ Sp. z o.o.
Starting at
€23.46 +VAT
PLN 107.85
  • EAN: 3245066068077
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Legrand 606811 motor protection switch Thermomagnetic Screw connection Lever Complete device in IP3X housing

Legrand 606811 motor protection switch Thermomagnetic Screw connection Lever Complete device in IP3X housing

ASAJ Sp. z o.o.
Starting at
€30.44 +VAT
PLN 139.96
  • EAN: 3245066068114
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Legrand 6112-250001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

Legrand 6112-250001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

ASAJ Sp. z o.o.
Starting at
€25.29 +VAT
PLN 116.27
  • EAN: 5904182640076
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Motor protection switch Legrand 606806 Thermomagnetic Screw connection Lever Complete device in IP3X housing

Motor protection switch Legrand 606806 Thermomagnetic Screw connection Lever Complete device in IP3X housing

ASAJ Sp. z o.o.
Starting at
€23.68 +VAT
PLN 108.88
  • EAN: 3245066068060
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Legrand 606810 motor circuit breaker Thermomagnetic Screw connection Lever Complete device in IP3X housing

Legrand 606810 motor circuit breaker Thermomagnetic Screw connection Lever Complete device in IP3X housing

ASAJ Sp. z o.o.
Starting at
€24.61 +VAT
PLN 113.13
  • EAN: 3245066068107
  • Manufacturer: LEGRAND
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ASAJ Sp. z o.o.
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Motor circuit breaker PKZM0, Ir = 1.6-2.5A PKZM0-2.5-EA 189900 EATON

Motor circuit breaker PKZM0, Ir = 1.6-2.5A PKZM0-2.5-EA 189900 EATON

ASAJ Sp. z o.o.
Starting at
€19.86 +VAT
PLN 91.32
  • EAN: 4015081878963
  • Manufacturer: EATON
Supplier
ASAJ Sp. z o.o.
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PKZM0 motor circuit breaker, Ir = 4-6.3A-EA 189902 Eaton

PKZM0 motor circuit breaker, Ir = 4-6.3A-EA 189902 Eaton

ASAJ Sp. z o.o.
Starting at
€19.86 +VAT
PLN 91.32
  • EAN: 4015081878987
  • Manufacturer: EATON
Supplier
ASAJ Sp. z o.o.
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Legrand 606812 motor circuit breaker Thermomagnetic Screw connection Lever Complete device in IP3X housing

Legrand 606812 motor circuit breaker Thermomagnetic Screw connection Lever Complete device in IP3X housing

ASAJ Sp. z o.o.
Starting at
€29.12 +VAT
PLN 133.87
  • EAN: 3245066068121
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Motor protection switch Legrand 606805 Thermomagnetic Screw connection Lever Complete device in IP3X housing

Motor protection switch Legrand 606805 Thermomagnetic Screw connection Lever Complete device in IP3X housing

ASAJ Sp. z o.o.
Starting at
€25.22 +VAT
PLN 115.94
  • EAN: 3245066068053
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Motor protection switch Legrand 606809 Thermomagnetic Screw connection Lever Complete device in IP3X housing

Motor protection switch Legrand 606809 Thermomagnetic Screw connection Lever Complete device in IP3X housing

ASAJ Sp. z o.o.
Starting at
€24.49 +VAT
PLN 112.58
  • EAN: 3245066068091
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Legrand 6112-420001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

Legrand 6112-420001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

ASAJ Sp. z o.o.
Starting at
€28.53 +VAT
PLN 131.18
  • EAN: 5904182640113
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Motor circuit breaker PKZM0, Ir = 10-16A PKZM0-16-EA 189905 EATON

Motor circuit breaker PKZM0, Ir = 10-16A PKZM0-16-EA 189905 EATON

ASAJ Sp. z o.o.
Starting at
€26.53 +VAT
PLN 121.98
  • EAN: 4015081879014
  • Manufacturer: EATON
Supplier
ASAJ Sp. z o.o.
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Legrand 6112-370001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

Legrand 6112-370001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

ASAJ Sp. z o.o.
Starting at
€25.21 +VAT
PLN 115.92
  • EAN: 5904182640106
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Legrand 6112-330001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

Legrand 6112-330001 motor circuit breaker Thermomagnetic Screw connection Button Complete device in IP20 housing

ASAJ Sp. z o.o.
Starting at
€25.41 +VAT
PLN 116.81
  • EAN: 5904182640090
  • Manufacturer: LEGRAND
Supplier
ASAJ Sp. z o.o.
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Motor circuit breaker PKZM0, Ir = 1-1.6A PKZM0-1.6-EA 189899 EATON

Motor circuit breaker PKZM0, Ir = 1-1.6A PKZM0-1.6-EA 189899 EATON

ASAJ Sp. z o.o.
Starting at
€19.86 +VAT
PLN 91.32
  • EAN: 4015081878956
  • Manufacturer: EATON
Supplier
ASAJ Sp. z o.o.
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Motor circuit breakers

Motor circuit breakers are the most effective protection for any motor. Electrical devices contain a motor that can be destroyed during everyday use. Then, many failures can occur, and the most common ones are: start-up blocked, overload, short circuit or one phase missing in three-phase networks. Each of the electric motors can be effectively protected against this type of failure by using just motor circuit breakers.

Motor protection switch: effective motor protection

Each motor breaker , also known as thermal , is a protective device. Thanks to the use of such a component, the electric motor will not be damaged. The switch cuts off the power supply if a short circuit, overload or other power failure occurs. Additionally, this device protects the electrical mechanism in the event of a phase failure. Motor protection should always be matched to the specific device in which it will be used. Then overload or short circuit will not be dangerous. You can find single-phase or three-phase motor circuit breakers on sale. As the basic electrical installation equipment, switches of this type are suitable for electric motors with lower power. Protections for motors react to overload current and short-circuit current and affect the operation of the device when the rated current is present in the circuit. The motor switch is used for manual switching on and off of a protected motor. It reacts immediately when necessary and ensures that the power is cut off immediately.

It should also be emphasized that the thermal protector plays a protective role, protecting the device when the motor current reaches undesirable parameters. If the start-up in a component such as an electric motor requires more power, then the use of a thermocouple is fully justified. In addition, if any motor is operating under severe conditions, a circuit breaker is also a protection feature worth considering. The thermal release reacts if it detects an overload. In this way it protects the motor winding, which could overheat. Thanks to such protection, there will be no overload and the device will work properly under all circumstances. In addition to the thermal fuse, there is also an electromagnetic fuse in the circuit-breakers. It will react immediately as soon as a short circuit occurs, protecting the motor against phase loss.

When discussing the operation of a thermal component, one cannot forget about its universality. It guarantees engine start in all operating modes. The selection of the appropriate motor circuit breaker requires familiarization with important technical parameters.

Motor circuit breakers: what to consider when choosing?

Always fit the circuit breaker to the device in which it is to be fitted. Optimal parameters will ensure that when overload current or short-circuit current appears, you won't have to worry about the motor being damaged.

Selection against the motor current is therefore the most important parameter that should be suggested. For the device to work properly, you must also know the rated current. Information on this can be found on the motor nameplate. Experts advise choosing thermals with slightly higher parameters, which is important in the case of motor protection with higher power. As standard, the motor circuit breakers have a rated current of up to 40 A. Each of these devices has an IP 65 protection class. As a result, it allows thermometers to work well even in extremely difficult conditions. Good-quality devices will also cooperate with additional accessories, such as a trigger indicator. The thermals can be easily set to operating mode because they have the necessary markings. Adjustment of operating parameters should be adapted to the motor current, and the power switches should be set to the rated current in the motor.