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
RS-artikelnummer 706-1765
Tillv. art.nr3RV2011-0JA10
VarumärkeSiemens
551,52 kr
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0.7 → 1 A 3P Sirius Innovation 100 kA Screw 690 V - 97mm 45mm 91mm 97 x 45 x 91 mm - 3RV2
RS-artikelnummer 711-6442
Tillv. art.nrMS132-0.16
VarumärkeABB
642,11 kr
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- 3P - - - 690 V ac - - - - - - MS132
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 395-0201
Tillv. art.nrGV2ME22
VarumärkeSchneider Electric
749,92 kr
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20 → 25 A 3P TeSys - Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M
RS-artikelnummer 305-2199
Tillv. art.nrGV2P10
VarumärkeSchneider Electric
604,48 kr
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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
RS-artikelnummer 312-5269
Tillv. art.nrPKZM0-2,5-T
VarumärkeEaton
553,09 kr
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1.6 → 2.5 A 3P - 150 kA Screw 690 V ac - 93mm 45mm 76mm 93 x 45 x 76 mm - PKZM 0
RS-artikelnummer 395-0324
Tillv. art.nrGV2ME02
VarumärkeSchneider Electric
443,64 kr
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0.16 → 0.25 A 3P TeSys - Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M
RS-artikelnummer 492-1507
Tillv. art.nrPKZM01-1
VarumärkeEaton
475,12 kr
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0.63 → 1 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 90.5mm 93 x 45 x 90.5 mm - PKZM 01
RS-artikelnummer 492-1743
Tillv. art.nrPKZM01-16
VarumärkeEaton
599,55 kr
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10 → 16 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 90.5mm 93 x 45 x 90.5 mm - PKZM 01
RS-artikelnummer 492-1541
Tillv. art.nrPKZM01-63
VarumärkeEaton
550,87 kr
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4 → 6.3 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 90.5mm 93 x 45 x 90.5 mm - PKZM 01
RS-artikelnummer 818-148
Tillv. art.nrPKZM0-1
VarumärkeEaton
708,29 kr
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0.63 → 1 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 76mm 93 x 45 x 76 mm - PKZM 0
RS-artikelnummer 899-5183
Tillv. art.nrDC1CU2L
VarumärkeAltech
234,68 kr
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- 1 - 10 kA - - - - - - - - L
RS-artikelnummer 351-5426
Tillv. art.nr140M-C2E-C25
VarumärkeAllen Bradley
977,42 kr
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18 → 25 A 3P - 15 kA - 415 V - 90mm 45mm 74mm 90 x 45 x 74 mm - 140M
RS-artikelnummer 351-5397
Tillv. art.nr140M-C2E-C10
VarumärkeAllen Bradley
792,85 kr
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6.3 → 10 A 3P - 100 kA - 415 V - 90mm 45mm 74mm 90 x 45 x 74 mm - 140M
RS-artikelnummer 331-3668
VarumärkeRS PRO
375,82 kr
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10 → 16 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS-artikelnummer 608-8438
Tillv. art.nrGV2LE20
VarumärkeSchneider Electric
565,60 kr
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18 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.5mm 89 x 44.5 x 78.5 mm - GV2L
RS-artikelnummer 608-8567
Tillv. art.nrGV2RT08
VarumärkeSchneider Electric
565,10 kr
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2.5 → 4 A 3P TeSys - - 690 V - 89mm 44.5mm 78.5mm 89 x 44.5 x 78.5 mm - GV2R
RS-artikelnummer 121-6858
VarumärkeRS PRO
509,30 kr
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25 → 32 A 3 - 25 kA @ 230 V Screw 690 V Automatic 45mm 89.5mm 78.5mm 45 x 89.5 x 78.5 mm Motor Protection Switches MS32
RS-artikelnummer 121-6852
VarumärkeRS PRO
280,25 kr
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4 → 6.3 A 3 - 100 kA @ 230 V Screw 690 V Automatic 45mm 89.5mm 78.5mm 45 x 89.5 x 78.5 mm Motor Protection Switches MS32
RS-artikelnummer 492-1557
Tillv. art.nrPKZM01-10
VarumärkeEaton
599,55 kr
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6.3 → 10 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 90.5mm 93 x 45 x 90.5 mm - PKZM 01
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