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 41 - 60 รายการจาก 441 รายการ / Viewing 41 - 60 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. 608-8321
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2L14
THB2,767.65
Each
Units
5.5 → 8 A, 7 → 10 A 3P TeSys 4 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2L
RS Stock No. 243-7123
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV1011-1DA10
Brand :Siemens
THB2,417.49
Each
Units
2.2 → 3.2 A 3P Sirius Innovation 100 kA Screw 690 V - 90mm 45mm 81mm 90 x 45 x 81 mm - 3RV1
RS Stock No. 305-2161
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2P06
THB3,694.30
Each
Units
1 → 1.6 A 3P TeSys 100 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2P
RS Stock No. 305-2199
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2P10
THB3,993.02
Each
Units
4 → 6.3 A 3P TeSys 6 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2P
RS Stock No. 395-0239
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2ME14
THB2,949.99
Each
Units
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 Stock No. 395-0201
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2ME22
THB2,767.47
Each
Units
20 → 25 A 3P TeSys - Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M
RS Stock No. 395-0267
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2ME07
THB3,808.02
Each
Units
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 Stock No. 312-5304
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PKZM0-10-T
Brand :Eaton
THB3,268.83
Each
Units
6.3 → 10 A 3P - 150 kA Screw 690 V ac - 93mm 45mm 76mm 93 x 45 x 76 mm - PKZM 0
RS Stock No. 395-0295
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2ME05
THB2,162.32
Each
Units
0.63 → 1 A 3P TeSys - Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm - GV2M
RS Stock No. 818-176
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PKZM0-4
Brand :Eaton
THB3,438.42
Each
Units
2.5 → 4 A 3P - 60 kA - 690 V - 93mm 45mm 76mm 93 x 45 x 76 mm - PKZM 0
RS Stock No. 608-8337
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2L16
THB3,978.44
Each
Units
12 → 18 A, 9 → 13 A 3P TeSys 4 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2L
RS Stock No. 608-8494
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2P02
THB3,043.60
Each
Units
0.16 → 0.25 A 3P TeSys 100 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2P
RS Stock No. 246-4901
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV1021-4AA10
Brand :Siemens
THB2,602.42
Each
Units
11 → 16 A 3P Sirius Innovation 50 kA Screw 690 V - 97mm 45mm 96mm 97 x 45 x 96 mm - 3RV1
RS Stock No. 305-2155
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2P05
THB5,416.82
Each
Units
0.63 → 1 A 3P TeSys 100 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2P
RS Stock No. 243-7101
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV1011-1BA10
Brand :Siemens
THB2,417.49
Each
Units
1.4 → 2 A 3P Sirius Innovation 100 kA Screw 690 V - 90mm 45mm 81mm 90 x 45 x 81 mm - 3RV1
RS Stock No. 608-8365
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2L32
THB6,162.08
Each
Units
23 → 32 A 3P TeSys 4 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2L
RS Stock No. 395-0194
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV2ME32
THB5,505.46
Each
Units
24 → 32 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. 492-1535
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PKZM01-4
Brand :Eaton
THB2,049.60
Each
Units
2.5 → 4 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 90.5mm 93 x 45 x 90.5 mm - PKZM 01
RS Stock No. 706-1863
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3RV2021-4DA10
Brand :Siemens
THB3,141.43
Each
Units
20 → 25 A 3P Sirius Innovation 4 kA Screw 690 V - 97mm 45mm 91mm 97 x 45 x 91 mm - 3RV2
RS Stock No. 764-9087
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MS116-32
Brand :ABB
THB4,847.78
Each
Units
25 → 32 A 3 MS Range 10 kA Screw 690 V ac - 97.8mm 45mm 86.6mm 97.8 x 45 x 86.6 mm - MS116
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