Motor Protection Circuit Breakers

Motor protection circuit breakers act as protection devices for electric motors, monitoring the electrical supply in motor circuits of 50-60Hz. They protect against phase unbalances and losses, which are detrimental to motors, offer protection against current overload, and prevent short circuits.


What are motor protection circuit breakers used for?

Motor protection circuit breakers are useful in industrial and building applications such as chillers, compressors, heat pumps and cooling towers, to prevent damages from short circuits or power surges. In the manufacturing industry, circuit breakers interrupt electrical faults below the breaking capacity, which protects machinery and equipment from blowouts.


Types of motor protection circuit breakers

Motor protection circuit breakers come in A type or B type classifications, dependent on utilisation and function.


The A type breaker is not explicitly intended for selectivity and does not allow intentional short time delay under short circuit conditions.This means that the system interrupts immediately when current or voltage levels match the breaking capacity.


Type B breakers allow for an intentional and adjustable short time delay under short circuit conditions, which enables the system to continue for a short while with currents exceeding breaking capacity levels.


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Beskrivning Pris Current Range Number of Poles Range Breaking Capacity Terminal Type Voltage Rating Reset Method Length Width Depth Dimensions For Use With Series Power Rating
RS-artikelnummer 122-0732
Tillv. art.nrMPW18-3-D063
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555,22 kr
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4 6.3 A 3 - 100 kA/415V Screw 690 V Manual 90mm 45mm 77mm 44.8 x 77 x 97 mm Motors MPW18 -
RS-artikelnummer 395-0289
Tillv. art.nrGV2ME06
VarumärkeSchneider Electric
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1 → 1.6 A 3P TeSys - Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M -
RS-artikelnummer 395-0245
Tillv. art.nrGV2ME10
VarumärkeSchneider Electric
517,88 kr
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4 → 6.3 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M -
RS-artikelnummer 123-6694
Tillv. art.nr9000-41042-0401000
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4 A, 6 A, 8 A, 10 A 2 MICO Intelligent - Cage Clamp 24 V dc - 36mm 80mm 90mm 36 x 80 x 90 mm - - -
RS-artikelnummer 395-0267
Tillv. art.nrGV2ME07
VarumärkeSchneider Electric
517,88 kr
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1.6 → 2.5 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M -
RS-artikelnummer 395-0239
Tillv. art.nrGV2ME14
VarumärkeSchneider Electric
547,42 kr
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6 → 10 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M -
RS-artikelnummer 706-1796
Tillv. art.nr3RV2011-1DA10
VarumärkeSiemens
610,41 kr
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2.2 → 3.2 A 3P Sirius Innovation 10 kA Screw 690 V - 97mm 45mm 91mm 97 x 45 x 91 mm - 3RV2 -
RS-artikelnummer 492-1579
Tillv. art.nrPKZM01-12
VarumärkeEaton
599,55 kr
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10 12 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 90.5mm 93 x 45 x 90.5 mm - PKZM 01 -
RS-artikelnummer 734-9037
Tillv. art.nrA9E21180
VarumärkeSchneider Electric
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8 A 2 Acti 9 - - 400 V ac - - - - - - iCT -
RS-artikelnummer 395-0217
Tillv. art.nrGV2ME20
VarumärkeSchneider Electric
589,34 kr
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13 → 18 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M -
RS-artikelnummer 395-0251
Tillv. art.nrGV2ME08
VarumärkeSchneider Electric
517,88 kr
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2.5 4 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M -
RS-artikelnummer 818-744
Tillv. art.nrPKZM0-10
VarumärkeEaton
623,70 kr
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6.3 → 10 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 76mm 93 x 45 x 76 mm - PKZM 0 -
RS-artikelnummer 706-1822
Tillv. art.nr3RV2011-1HA10
VarumärkeSiemens
610,41 kr
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5.5 → 8 A 3P Sirius Innovation 6 kA Screw 690 V - 97mm 45mm 91mm 97 x 45 x 91 mm - 3RV2 -
RS-artikelnummer 706-1774
Tillv. art.nr3RV2011-1AA10
VarumärkeSiemens
584,24 kr
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1.1 → 1.6 A 3P Sirius Innovation 100 kA Screw 690 V - 97mm 45mm 91mm 97 x 45 x 91 mm - 3RV2 -
RS-artikelnummer 608-8359
Tillv. art.nrGV2L22
VarumärkeSchneider Electric
856,73 kr
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16 → 24 A 3P TeSys 4 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2L -
RS-artikelnummer 312-5297
Tillv. art.nrPKZM0-6,3-T
VarumärkeEaton
553,09 kr
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4 6.3 A 3P - 150 kA Screw 690 V ac - 93mm 45mm 76mm 93 x 45 x 76 mm - PKZM 0 -
RS-artikelnummer 395-0295
Tillv. art.nrGV2ME05
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0.63 1 A 3P TeSys - Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M -
RS-artikelnummer 492-1529
Tillv. art.nrPKZM01-2,5
VarumärkeEaton
654,92 kr
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1.6 → 2.5 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 90.5mm 93 x 45 x 90.5 mm - PKZM 01 -
RS-artikelnummer 608-8400
Tillv. art.nrGV2LE10
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499,13 kr
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6.3 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.5mm 89 x 44.5 x 78.5 mm - GV2L -
RS-artikelnummer 305-2199
Tillv. art.nrGV2P10
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4 6.3 A 3P TeSys 6 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2P -
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