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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Rincian Komponen Brand Stock Current Range Number of Poles Range Breaking Capacity Terminal Type Voltage Rating Reset Method Length Width Depth Dimensions Series For Use With
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 0.4 → 0.63 A, 100 kA @ 690 V
  • S$ 34,67
  • Each
  • Compare
Schneider Electric 0 0.4 → 0.63 A 3 TeSys 100 kA @ 690 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 0.63 → 1 A, 100 kA @ 690 V
  • S$ 34,67
  • Each
  • Compare
Schneider Electric 0 0.63 → 1 A 3 TeSys 100 kA @ 690 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 1 → 1.6 A, 100 kA @ 690 V
  • S$ 33,70
  • Each
  • Compare
Schneider Electric 0 1 → 1.6 A 3 TeSys 100 kA @ 690 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 1.6 → 2.5 A, 100 kA @ 500 V, 3 kA
  • S$ 34,67
  • Each
  • Compare
Schneider Electric 0 1.6 → 2.5 A 3 TeSys 100 kA @ 500 V, 3 kA @ 690 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 13 → 18 A, 100 kA @ 230 / 240 V,
  • S$ 36,22
  • Each
  • Compare
Schneider Electric 0 13 → 18 A 3 TeSys 100 kA @ 230 / 240 V, 15 kA @ 400 / 415 V, 3 kA @ 690 V, 6 kA @ 500 V, 8 kA @ 440 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 17 → 23 A, 15 kA @ 400 / 415 V, 3
  • S$ 40,00
  • Each
  • Compare
Schneider Electric 0 17 → 23 A 3 TeSys 15 kA @ 400 / 415 V, 3 kA @ 690 V, 4 kA @ 500 V, 50 kA @ 230 / 240 V, 6 kA @ 440 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 2.5 → 4 A, 100 kA @ 500 V, 3 kA @
  • S$ 33,70
  • Each
  • Compare
Schneider Electric 0 2.5 → 4 A 3 TeSys 100 kA @ 500 V, 3 kA @ 690 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 20 → 25 A, 15 kA @ 400 / 415 V, 3
  • S$ 42,62
  • Each
  • Compare
Schneider Electric 0 20 → 25 A 3 TeSys 15 kA @ 400 / 415 V, 3 kA @ 690 V, 4 kA @ 500 V, 50 kA @ 230 / 240 V, 6 kA @ 440 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 24 → 32 A, 10 kA @ 400 / 415 V, 3
  • S$ 43,61
  • Each
  • Compare
Schneider Electric 0 24 → 32 A 3 TeSys 10 kA @ 400 / 415 V, 3 kA @ 690 V, 4 kA @ 500 V, 50 kA @ 230 / 240 V, 6 kA @ 440 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 4 → 6.3 A, 100 kA @ 400 / 415 V, 3
  • S$ 33,70
  • Each
  • Compare
Schneider Electric 0 4 → 6.3 A 3 TeSys 100 kA @ 400 / 415 V, 3 kA @ 690 V, 50 kA @ 440 V, 50 kA @ 500 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 6 → 10 A, 10 kA @ 500 V, 100 kA @
  • S$ 33,70
  • Each
  • Compare
Schneider Electric 0 6 → 10 A 3 TeSys 10 kA @ 500 V, 100 kA @ 400 / 415 V, 15 kA @ 440 V, 3 kA @ 690 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 9 → 14 A, 100 kA @ 230 / 240 V, 15
  • S$ 35,79
  • Each
  • Compare
Schneider Electric 0 9 → 14 A 3 TeSys 100 kA @ 230 / 240 V, 15 kA @ 400 / 415 V, 3 kA @ 690 V, 6 kA @ 500 V, 8 kA @ 440 V Screw 690 V Rotary Knob 44.5mm 89mm 91mm 44.5 x 89 x 91 mm GV2 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 6 → 10 A, 3 kA
  • S$ 118,67
  • Each
  • Compare
Schneider Electric 256 6 → 10 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm GV2M -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 1.6 → 2.5 A, 3 kA
  • S$ 113,55
  • Each
  • Compare
Schneider Electric 233 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 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 2.5 → 4 A, 3 kA
  • S$ 113,55
  • Each
  • Compare
Schneider Electric 155 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 -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 1 → 1.6 A
  • S$ 104,10
  • Each
  • Compare
Schneider Electric 152 1 → 1.6 A 3P TeSys - Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm GV2M -
Schneider Electric TeSys 690 V Motor Protection Circuit Breaker, 3P Channels, 4 → 6.3 A, 3 kA
  • S$ 113,55
  • Each
  • Compare
Schneider Electric 143 4 → 6.3 A 3P TeSys 3 kA Screw 690 V - 89mm 44.5mm 78.2mm 89 x 44.5 x 78.2 mm GV2M -
Phoenix Contact CLIPLINE 28 V dc, 240 V ac Motor Protection Circuit Breaker
  • S$ 30,04
  • Each
  • Compare
Phoenix Contact 140 - - CLIPLINE - Screw 28 V dc, 240 V ac - 86mm 12.3mm 96mm 86 x 12.3 x 96 mm UT 6-TMC M 0.5A -
Eaton 690 V ac Motor Protection Circuit Breaker, 3P Channels, 10 → 16 A, 60 kA
  • S$ 143,96
  • Each
  • Compare
Eaton 100 10 → 16 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 76mm 93 x 45 x 76 mm PKZM 0 -
Eaton 690 V ac Motor Protection Circuit Breaker, 3P Channels, 6.3 → 10 A, 60 kA
  • S$ 125,59
  • Each
  • Compare
Eaton 95 6.3 → 10 A 3P - 60 kA Screw 690 V ac - 93mm 45mm 76mm 93 x 45 x 76 mm PKZM 0 -
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