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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Description 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. 395-0239
Mfr. Part No.GV2ME14
PHP13,482.50
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. 395-0245
Mfr. Part No.GV2ME10
PHP5,788.02
Each
units
4 → 6.3 A 3P TeSys 3 kA Screw 690 V Manual 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm Motor Protection GV2M
RS Stock No. 395-0217
Mfr. Part No.GV2ME20
PHP13,515.20
Each
units
13 → 18 A 3P TeSys 3 kA Screw 690 V Manual 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm Motor Protection GV2M
RS Stock No. 395-0251
Mfr. Part No.GV2ME08
PHP13,482.50
Each
units
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 Stock No. 818-744
Mfr. Part No.072739 | PKZM0-10
BrandEaton
PHP5,915.01
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. 395-0267
Mfr. Part No.GV2ME07
PHP9,641.20
Each
units
1.6 → 2.5 A 3P TeSys 3 kA Screw 690 V Manual 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm Motor Protection GV2M
RS Stock No. 246-5027
Mfr. Part No.3RV1041-4KA10
BrandSiemens
PHP15,156.77
Each
units
57 → 75 A 3P Sirius Innovation 50 kA Screw 690 V - 165mm 70mm 174mm 165 x 70 x 174 mm - 3RV1
RS Stock No. 243-7016
Mfr. Part No.3RV1011-0DA10
BrandSiemens
PHP3,569.55
Each
units
0.22 → 0.32 A 3P Sirius Innovation 100 kA Screw 690 V - 90mm 45mm 81mm 90 x 45 x 81 mm - 3RV1
RS Stock No. 243-7094
Mfr. Part No.3RV1011-1AA10
BrandSiemens
PHP4,118.95
Each
units
1.1 → 1.6 A 3P Sirius Innovation 100 kA Screw 690 V - 90mm 45mm 81mm 90 x 45 x 81 mm - 3RV1
RS Stock No. 243-7145
Mfr. Part No.3RV1011-1FA10
BrandSiemens
PHP4,861.73
Each
units
3.5 → 5 A 3P Sirius Innovation 100 kA Screw 690 V - 90mm 45mm 81mm 90 x 45 x 81 mm - 3RV1
RS Stock No. 395-0194
Mfr. Part No.GV2ME32
PHP13,564.60
Each
units
24 → 32 A 3P TeSys 3 kA Screw 690 V Manual 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm Motor Protection GV2M
RS Stock No. 246-4995
Mfr. Part No.3RV1031-4HA10
BrandSiemens
PHP15,318.63
Each
units
40 → 50 A 3P Sirius Innovation 4 kA Screw 690 V - 140mm 55mm 149mm 140 x 55 x 149 mm - 3RV1
RS Stock No. 706-1796
Mfr. Part No.3RV2011-1DA10
BrandSiemens
PHP3,801.45
Each
units
2.2 → 3.2 A 3P Sirius Innovation 10 kA Screw 690 V - 97mm 45mm 91mm 97 x 45 x 91 mm - 3RV2
RS Stock No. 305-2183
Mfr. Part No.GV2P08
PHP14,109.80
Each
units
2.5 → 4 A 3P TeSys 8 kA Screw 690 V - 89mm 44.5mm 97mm 89 x 44.5 x 97 mm - GV2P
RS Stock No. 395-0223
Mfr. Part No.GV2ME16
PHP13,321.10
Each
units
9 → 14 A 3P TeSys 3 kA Screw 690 V Manual 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm Motor Protection GV2M
RS Stock No. 243-7123
Mfr. Part No.3RV1011-1DA10
BrandSiemens
PHP4,326.73
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. 212-7955
Mfr. Part No.046938 | PKZM0-16
BrandEaton
PHP7,136.30
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. 246-4894
Mfr. Part No.3RV1021-1KA10
BrandSiemens
PHP5,692.45
Each
units
9 → 12.5 A 3P Sirius Innovation 100 kA Screw 690 V - 97mm 45mm 96mm 97 x 45 x 96 mm - 3RV1
RS Stock No. 124-3101
Mfr. Part No.3RV2021-1DA10
BrandSiemens
PHP4,649.67
Each
units
2.2 → 3.2 A 3 Sirius Innovation 100 kA @ 400 V ac Screw 690 V ac Manual 45mm 96.9mm 97mm 45 x 97 x 96.9 mm Three Phase Motors SRV2
RS Stock No. 305-2199
Mfr. Part No.GV2P10
PHP14,109.80
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
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