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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กำลังดูสินค้า 61 - 80 รายการจาก 441 รายการ / Viewing 61 - 80 of 441 products
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รายละเอียดสินค้า / Description ราคา / Price Current Range Number of Poles Range Breaking Capacity Terminal Type Voltage Rating Reset Method Length Width Depth Dimensions For Use With Series
RS Stock No. 818-744
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PKZM0-10
Brand :Eaton
THB3,177.95
Each
Units
6.3 → 10 A 3P - 60 kA Screw 690 V - 93mm 45mm 76mm 93 x 45 x 76 mm - PKZM 0
RS Stock No. 212-7955
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PKZM0-16
Brand :Eaton
THB3,566.09
Each
Units
10 → 16 A 3P - 60 kA Screw 690 V - 93mm 45mm 76mm 93 x 45 x 76 mm - PKZM 0
RS Stock No. 246-5033
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV1041-4LA10
Brand :Siemens
THB8,052.88
Each
Units
70 → 90 A 3P Sirius Innovation 50 kA Screw 690 V - 165mm 70mm 174mm 165 x 70 x 174 mm - 3RV1
RS Stock No. 123-6688
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9000-41034-0100400
THB4,731.06
Each
Units
1 → 4 A 4 MICO Intelligent - Cage Clamp 24 V dc - 70mm 80mm 90mm 70 x 80 x 90 mm - -
RS Stock No. 755-2898
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV2021-4FA10
Brand :Siemens
THB5,158.47
Each
Units
40 A 3P Sirius Innovation 20 kA Screw 690 V - 97mm 45mm 91mm 97 x 45 x 91 mm - -
RS Stock No. 243-7139
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV1011-1EA10
Brand :Siemens
THB2,417.49
Each
Units
2.8 → 4 A 3P Sirius Innovation 100 kA Screw 690 V - 90mm 45mm 81mm 90 x 45 x 81 mm - 3RV1
RS Stock No. 243-7151
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV1011-1GA10
Brand :Siemens
THB2,417.49
Each
Units
4.5 → 6.3 A 3P Sirius Innovation 100 kA Screw 690 V - 90mm 45mm 81mm 90 x 45 x 81 mm - 3RV1
RS Stock No. 395-0289
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2ME06
THB2,953.71
Each
Units
1 → 1.6 A 3P TeSys - Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M
RS Stock No. 764-9075
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MS116-20
Brand :ABB
THB3,376.01
Each
Units
16 → 20 A 3 MS Range 15 kA Screw 690 V ac - 97.8mm 45mm 86.6mm 97.8 x 45 x 86.6 mm - MS116
RS Stock No. 706-1807
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV2011-1FA10
Brand :Siemens
THB2,124.00
Each
Units
3.5 → 5 A 3P Sirius Innovation 6 kA Screw 690 V - 97mm 45mm 91mm 97 x 45 x 91 mm - 3RV2
RS Stock No. 445-0386
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MS116-6.3
Brand :ABB
THB2,531.30
Each
Units
4 6.30 A 3P - 50 kA Screw 690 V ac - - - - 45 x 90 x 85.6 mm - MS116
RS Stock No. 608-8292
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2L07
THB2,885.73
Each
Units
1.6 → 2.5 A 3P TeSys 4 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2L
RS Stock No. 395-0223
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2ME16
THB2,728.12
Each
Units
9 → 14 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M
RS Stock No. 711-6499
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MS132-32
Brand :ABB
THB5,178.71
Each
Units
- 3P - - - 690 V ac - - - - - - MS132
RS Stock No. 608-8343
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2L20
THB2,767.65
Each
Units
12 → 18 A 3P TeSys 4 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2L
RS Stock No. 608-8359
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2L22
THB4,085.33
Each
Units
16 → 24 A 3P TeSys 4 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2L
RS Stock No. 875-1119
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV2031-4PA10
Brand :Siemens
THB6,168.07
Each
Units
28 → 36 A 3 Sirius Innovation 4 kA Screw 690 V - 140mm 55mm 149mm 140 x 55 x 149 mm Motor Protection 3RV2
RS Stock No. 608-8501
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2P03
THB3,764.56
Each
Units
0.25 → 0.4 A 3P TeSys 100 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2P
RS Stock No. 445-0358
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MS116-2.5
Brand :ABB
THB2,531.30
Each
Units
1.6 2.5 A 3P - 50 kA Screw 690 V ac - - - - 45 x 90 x 85.6 mm - MS116
RS Stock No. 246-4894
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV1021-1KA10
Brand :Siemens
THB3,180.56
Each
Units
9 → 12.5 A 3P Sirius Innovation 100 kA Screw 690 V - 97mm 45mm 96mm 97 x 45 x 96 mm - 3RV1
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