Motor Protection Circuit Breakers

pMotor protection circuit breakers act as protection devices for a href="https://uk.rs-online.com/web/c/automation-control-gear/electric-motors-motor-controllers-peripherals/" target="_blank" title="electric motors"electric motors/a, 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./p pbr/p h3What are motor protection circuit breakers used for?/h3 pMotor 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./p pbr/p h3Types of motor protection circuit breakers/h3 pMotor protection circuit breakers come in A type or B type classifications, dependent on utilisation and function./p pbr/p pThe 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./p pbr/p pType 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./p

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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. 331-3551
BrandRS PRO
SGD38.68
Each
units
0.1 → 0.16 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 331-3668
BrandRS PRO
SGD72.93
Each
units
10 → 16 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 331-3618
BrandRS PRO
SGD48.70
Each
units
1 → 1.6 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 121-6849
BrandRS PRO
SGD33.94
Each
units
1 → 1.6 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 Stock No. 331-3646
BrandRS PRO
SGD45.10
Each
units
4 → 6 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 121-6852
BrandRS PRO
SGD33.94
Each
units
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 Stock No. 331-3573
BrandRS PRO
SGD43.07
Each
units
0.24 → 0.4 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 331-3595
BrandRS PRO
SGD47.59
Each
units
0.6 → 1 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 331-3630
BrandRS PRO
SGD43.83
Each
units
2.4 → 4 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 121-6851
BrandRS PRO
SGD34.90
Each
units
2.5 → 4 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 Stock No. 121-6855
BrandRS PRO
SGD43.34
Each
units
13 → 18 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 Stock No. 331-3589
BrandRS PRO
SGD38.70
Each
units
0.4 → 0.6 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 121-6850
BrandRS PRO
SGD34.90
Each
units
1.6 → 2.5 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 Stock No. 331-3652
BrandRS PRO
SGD58.47
Each
units
6 → 10 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 121-6847
BrandRS PRO
SGD34.90
Each
units
0.4 → 0.63 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 Stock No. 121-6844
BrandRS PRO
SGD34.90
Each
units
0.1 → 0.16 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 Stock No. 121-6845
BrandRS PRO
SGD34.90
Each
units
0.16 → 0.25 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 Stock No. 331-3567
BrandRS PRO
SGD44.28
Each
units
0.16 → 0.24 A - - - Screw 690 V - 80mm 45mm 73.5mm 80 x 45 x 73.5 mm MS25 Series XL2000
RS Stock No. 121-6858
BrandRS PRO
SGD62.81
Each
units
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 Stock No. 121-6848
BrandRS PRO
SGD34.90
Each
units
0.63 → 1 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
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