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Molded Case Circuit Breakers (MCCB)

Molded Case Circuit Breakers (MCCBs) are the work‑horses that protect medium‑ to high‑power circuits from overloads and short‑circuits. Our Schneider ComPact and GoPact ranges cover 16 A to 630 A with breaking capacities up to 70 kA, giving South‑African installers the head‑room demanded by SANS 10142 and IEC 60947‑2.

Whether you’re upgrading a panel in a manufacturing plant or speccing a new commercial DB, you can choose between thermal‑magnetic or electronic trip units, fixed or adjustable settings, and 1‑ to 4‑pole formats. Every MCCB on this page carries Schneider’s proven track record for reliability, plus digital features such as DIN‑rail energy metering on selected ComPact NSX models.

Need help sizing the breaker? Check the kA rating against your prospective fault level, match the trip curve to motor‑start currents, and allow at least 20 % head‑room on continuous load. Scroll down to shop the full Schneider MCCB line‑up.

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Available for backorder

circuit breaker ComPact NSX400H, 70 kA at 415 VAC, MicroLogic 2.3 trip unit 250 A, 3 poles 3d

Schneider Electric
R 14,397.22 - R 14,397.22
R 14,397.22
R 14,397.22 - R 14,397.22
R 14,397.22
Available for backorder

Circuit Breaker Compact Nsx400H 70 Ka At 415 Vac Micrologic 2 3 Trip Unit 250 A 3 Poles 3DCircuit Breaker Compact Nsx400H 70 Ka At 415 Vac Microlog...

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R 14,397.22 - R 14,397.22
R 14,397.22
R 14,397.22 - R 14,397.22
R 14,397.22
Available for backorder
Available for backorder

circuit breaker ComPact NSX400N, 50 kA at 415 VAC, MicroLogic 2.3 trip unit 250 A, 3 poles 3d

Schneider Electric
R 13,513.47 - R 13,513.47
R 13,513.47
R 13,513.47 - R 13,513.47
R 13,513.47
Available for backorder

Circuit Breaker Compact Nsx400N 50 Ka At 415 Vac Micrologic 2 3 Trip Unit 250 A 3 Poles 3DCircuit Breaker Compact Nsx400N 50 Ka At 415 Vac Microlog...

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R 13,513.47 - R 13,513.47
R 13,513.47
R 13,513.47 - R 13,513.47
R 13,513.47
Available for backorder
Available for backorder

circuit breaker ComPact NSX600S DC, 100 kA at 750 VDC, TM-DC trip unit, 600 A rating, 3 poles

Schneider Electric
R 35,784.08 - R 35,784.08
R 35,784.08
R 35,784.08 - R 35,784.08
R 35,784.08
Available for backorder

Circuit Breaker Compact Nsx600S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 600 A Rating 3 Poles 1Circuit Breaker Compact Nsx600S Dc 100 Ka At 750 Vdc Tm ...

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R 35,784.08 - R 35,784.08
R 35,784.08
R 35,784.08 - R 35,784.08
R 35,784.08
Available for backorder
Available for backorder

circuit breaker ComPact NSX500S DC, 100 kA at 750 VDC, TM-DC trip unit, 500 A rating, 3 poles

Schneider Electric
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder

Circuit Breaker Compact Nsx500S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 500 A Rating 3 PolesCircuit Breaker Compact Nsx500S Dc 100 Ka At 750 Vdc Tm Dc...

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R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder
Available for backorder

circuit breaker ComPact NSX400S DC, 100 kA at 750 VDC, TM-DC trip unit, 400 A rating, 3 poles

Schneider Electric
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder

Circuit Breaker Compact Nsx400S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 400 A Rating 3 PolesCircuit Breaker Compact Nsx400S Dc 100 Ka At 750 Vdc Tm Dc...

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R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder
Available for backorder

circuit breaker ComPact NSX320S DC, 100 kA at 750 VDC, TM-DC trip unit, 320 A rating, 3 poles

Schneider Electric
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder

Circuit Breaker Compact Nsx320S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 320 A Rating 3 PolesCircuit Breaker Compact Nsx320S Dc 100 Ka At 750 Vdc Tm Dc...

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R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder
Available for backorder

circuit breaker ComPact NSX250S DC, 100 kA at 750 VDC, TM-DC trip unit, 250 A rating, 3 poles

Schneider Electric
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder

Circuit Breaker Compact Nsx250S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 250 A Rating 3 PolesCircuit Breaker Compact Nsx250S Dc 100 Ka At 750 Vdc Tm Dc...

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R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder
Available for backorder

circuit breaker ComPact NSX500F DC, 36 kA at 750 VDC, TM-DC trip unit, 500 A rating, 3 poles

Schneider Electric
R 17,130.14 - R 17,130.14
R 17,130.14
R 17,130.14 - R 17,130.14
R 17,130.14
Available for backorder

Circuit Breaker Compact Nsx500F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 500 A Rating 3 PolesCircuit Breaker Compact Nsx500F Dc 36 Ka At 750 Vdc Tm Dc T...

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R 17,130.14 - R 17,130.14
R 17,130.14
R 17,130.14 - R 17,130.14
R 17,130.14
Available for backorder
Available for backorder

circuit breaker ComPact NSX400F DC, 36 kA at 750 VDC, TM-DC trip unit, 400 A rating, 3 poles

Schneider Electric
R 17,130.14 - R 17,130.14
R 17,130.14
R 17,130.14 - R 17,130.14
R 17,130.14
Available for backorder

Circuit Breaker Compact Nsx400F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 400 A Rating 3 PolesCircuit Breaker Compact Nsx400F Dc 36 Ka At 750 Vdc Tm Dc T...

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R 17,130.14 - R 17,130.14
R 17,130.14
R 17,130.14 - R 17,130.14
R 17,130.14
Available for backorder
Available for backorder

circuit breaker ComPact NSX320F DC, 36 kA at 750 VDC, TM-DC trip unit, 320 A rating, 3 poles

Schneider Electric
R 16,512.30 - R 16,512.30
R 16,512.30
R 16,512.30 - R 16,512.30
R 16,512.30
Available for backorder

Circuit Breaker Compact Nsx320F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 320 A Rating 3 PolesCircuit Breaker Compact Nsx320F Dc 36 Ka At 750 Vdc Tm Dc T...

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R 16,512.30 - R 16,512.30
R 16,512.30
R 16,512.30 - R 16,512.30
R 16,512.30
Available for backorder
Available for backorder

circuit breaker ComPact NSX250F DC, 36 kA at 750 VDC, TM-DC trip unit, 250 A rating, 3 poles

Schneider Electric
R 16,512.30 - R 16,512.30
R 16,512.30
R 16,512.30 - R 16,512.30
R 16,512.30
Available for backorder

Circuit Breaker Compact Nsx250F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 250 A Rating 3 PolesCircuit Breaker Compact Nsx250F Dc 36 Ka At 750 Vdc Tm Dc T...

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R 16,512.30 - R 16,512.30
R 16,512.30
R 16,512.30 - R 16,512.30
R 16,512.30
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX250S DC, 100 kA at 750 VDC, 250 A, without trip unit, 3 poles

Schneider Electric
R 3,392.97 - R 3,392.97
R 3,392.97
R 3,392.97 - R 3,392.97
R 3,392.97
Available for backorder

Circuit Breaker Basic Frame Compact Nsx250S Dc 100 Ka At 750 Vdc 250 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx250S Dc 100 ...

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R 3,392.97 - R 3,392.97
R 3,392.97
R 3,392.97 - R 3,392.97
R 3,392.97
Available for backorder
Available for backorder

switch disconnector ComPact NSX630 NA DC, 3 poles, 630 A

Schneider Electric
R 19,509.83 - R 19,509.83
R 19,509.83
R 19,509.83 - R 19,509.83
R 19,509.83
Available for backorder

Switch Disconnector Compact Nsx630 Na Dc 3 Poles 630 ASwitch Disconnector Compact Nsx630 Na Dc 3 Poles 630 A is built for safe, reliable use in hom...

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R 19,509.83 - R 19,509.83
R 19,509.83
R 19,509.83 - R 19,509.83
R 19,509.83
Available for backorder
Available for backorder

switch disconnector ComPact NSX400 NA DC, 3 poles, 400 A

Schneider Electric
R 12,938.65 - R 12,938.65
R 12,938.65
R 12,938.65 - R 12,938.65
R 12,938.65
Available for backorder

Switch Disconnector Compact Nsx400 Na Dc 3 Poles 400 ASwitch Disconnector Compact Nsx400 Na Dc 3 Poles 400 A is built for safe, reliable use in hom...

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R 12,938.65 - R 12,938.65
R 12,938.65
R 12,938.65 - R 12,938.65
R 12,938.65
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX160S DC, 100 kA at 750 VDC, 160 A, without trip unit, 3 poles

Schneider Electric
R 2,897.10 - R 2,897.10
R 2,897.10
R 2,897.10 - R 2,897.10
R 2,897.10
Available for backorder

Circuit Breaker Basic Frame Compact Nsx160S Dc 100 Ka At 750 Vdc 160 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx160S Dc 100 ...

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R 2,897.10 - R 2,897.10
R 2,897.10
R 2,897.10 - R 2,897.10
R 2,897.10
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX160F DC, 36 kA at 750 VDC, 160 A, without trip unit, 3 poles

Schneider Electric
R 2,831.71 - R 2,831.71
R 2,831.71
R 2,831.71 - R 2,831.71
R 2,831.71
Available for backorder

Circuit Breaker Basic Frame Compact Nsx160F Dc 36 Ka At 750 Vdc 160 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx160F Dc 36 Ka...

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R 2,831.71 - R 2,831.71
R 2,831.71
R 2,831.71 - R 2,831.71
R 2,831.71
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX100S DC, 100 kA at 750 VDC, 100 A, without trip unit, 3 poles

Schneider Electric
R 2,897.10 - R 2,897.10
R 2,897.10
R 2,897.10 - R 2,897.10
R 2,897.10
Available for backorder

Circuit Breaker Basic Frame Compact Nsx100S Dc 100 Ka At 750 Vdc 100 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx100S Dc 100 ...

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R 2,897.10 - R 2,897.10
R 2,897.10
R 2,897.10 - R 2,897.10
R 2,897.10
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX100F DC, 36 kA at 750 VDC, 100 A, without trip unit, 3 poles

Schneider Electric
R 2,831.71 - R 2,831.71
R 2,831.71
R 2,831.71 - R 2,831.71
R 2,831.71
Available for backorder

Circuit Breaker Basic Frame Compact Nsx100F Dc 36 Ka At 750 Vdc 100 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx100F Dc 36 Ka...

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R 2,831.71 - R 2,831.71
R 2,831.71
R 2,831.71 - R 2,831.71
R 2,831.71
Available for backorder
Available for backorder

circuit breaker ComPact NSX630HB2, 100 kA at 690 VAC, MicroLogic 5.3 E trip unit 630 A, 3 poles 3d

Schneider Electric
R 45,481.30 - R 45,481.30
R 45,481.30
R 45,481.30 - R 45,481.30
R 45,481.30
Available for backorder

Circuit Breaker Compact Nsx630Hb2 100 Ka At 690 Vac Micrologic 5 3 E Trip Unit 630 A 3 Poles 3DCircuit Breaker Compact Nsx630Hb2 100 Ka At 690 Vac ...

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R 45,481.30 - R 45,481.30
R 45,481.30
R 45,481.30 - R 45,481.30
R 45,481.30
Available for backorder
Available for backorder

circuit breaker ComPact NSX630HB1, 75 kA at 690 VAC, MicroLogic 1.3 M trip unit 500 A, 3 poles 3d

Schneider Electric
R 31,224.73 - R 31,224.73
R 31,224.73
R 31,224.73 - R 31,224.73
R 31,224.73
Available for backorder

Circuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Micrologic 1 3 M Trip Unit 500 A 3 Poles 3DCircuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Mi...

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R 31,224.73 - R 31,224.73
R 31,224.73
R 31,224.73 - R 31,224.73
R 31,224.73
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB2, 100 kA at 690 VAC, MicroLogic 2.3 trip unit 400 A, 3 poles 3d

Schneider Electric
R 22,738.81 - R 22,738.81
R 22,738.81
R 22,738.81 - R 22,738.81
R 22,738.81
Available for backorder

Circuit Breaker Compact Nsx400Hb2 100 Ka At 690 Vac Micrologic 2 3 Trip Unit 400 A 3 Poles 3DCircuit Breaker Compact Nsx400Hb2 100 Ka At 690 Vac Mi...

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R 22,738.81 - R 22,738.81
R 22,738.81
R 22,738.81 - R 22,738.81
R 22,738.81
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB1, 75 kA at 690 VAC, MicroLogic 1.3 M trip unit 320 A, 3 poles 3d

Schneider Electric
R 24,874.62 - R 24,874.62
R 24,874.62
R 24,874.62 - R 24,874.62
R 24,874.62
Available for backorder

Circuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Micrologic 1 3 M Trip Unit 320 A 3 Poles 3DCircuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Mi...

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R 24,874.62 - R 24,874.62
R 24,874.62
R 24,874.62 - R 24,874.62
R 24,874.62
Available for backorder
Available for backorder

circuit breaker ComPact NSX250HB1, 75 kA at 690 VAC, MicroLogic 2.2 M trip unit 150 A, 3 poles 3d

Schneider Electric
R 17,894.00 - R 17,894.00
R 17,894.00
R 17,894.00 - R 17,894.00
R 17,894.00
Available for backorder

Circuit Breaker Compact Nsx250Hb1 75 Ka At 690 Vac Micrologic 2 2 M Trip Unit 150 A 3 Poles 3DCircuit Breaker Compact Nsx250Hb1 75 Ka At 690 Vac Mi...

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R 17,894.00 - R 17,894.00
R 17,894.00
R 17,894.00 - R 17,894.00
R 17,894.00
Available for backorder
Available for backorder

circuit breaker ComPact NSX250HB1, 75 kA at 690 VAC, MicroLogic 2.2 trip unit 250 A, 3 poles 3d

Schneider Electric
R 18,711.10 - R 18,711.10
R 18,711.10
R 18,711.10 - R 18,711.10
R 18,711.10
Available for backorder

Circuit Breaker Compact Nsx250Hb1 75 Ka At 690 Vac Micrologic 2 2 Trip Unit 250 A 3 Poles 3DCircuit Breaker Compact Nsx250Hb1 75 Ka At 690 Vac Micr...

View full details
R 18,711.10 - R 18,711.10
R 18,711.10
R 18,711.10 - R 18,711.10
R 18,711.10
Available for backorder