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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Omschrijving Prijs Current Range Breaking Capacity Voltage Rating Number of Poles Range Terminal Type
Nieuw
RS-stocknr. 211-2309
FabrikantnummerGV2ME216
€ 82,30
Each
Aantal stuks
17-23 A 3000 A 690 V 3 TeSys GV2 Screw
Nieuw
RS-stocknr. 211-2307
FabrikantnummerGV2ME106
€ 72,00
Each
Aantal stuks
4-6.3 A 3000 A 690 V 3 TeSys GV2 Screw
Nieuw
RS-stocknr. 211-2303
FabrikantnummerGV2LE03
€ 49,85
Each
Aantal stuks
0.4 A 100000 A 690 V 3 TeSys GV2 Screw
Nieuw
RS-stocknr. 211-2304
FabrikantnummerGV2LE04
€ 60,50
Each
Aantal stuks
0.63 A 100000 A 690 V 3 TeSys GV2 Screw
Nieuw
RS-stocknr. 211-2308
FabrikantnummerGV2ME146
€ 72,70
Each
Aantal stuks
43992 A 3000 A 690 V 3 TeSys GV2 Screw
Nieuw
RS-stocknr. 211-2306
FabrikantnummerGV2ME056
€ 66,70
Each
Aantal stuks
0.63-1 A 100000 A 690 V 3 TeSys GV2 Screw
Nieuw
RS-stocknr. 211-2301
FabrikantnummerGV2AK00
€ 41,30
Each
Aantal stuks
0.1 → 25 A - - 3 TeSys GV2 Screw
Nieuw
RS-stocknr. 211-2305
FabrikantnummerGV2ME04TQ
€ 56,30
Each (In a Pack of 24)
Aantal stuks
0.4-0.63 A 100000 A 690 V 3 TeSys GV2 Screw
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