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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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R
Available for backorder

circuit breaker ComPact NSX400F, 36 kA at 415 VAC, MicroLogic 2.3 trip unit 250 A, 4 poles 4d

Schneider Electric
R 16,946.70 - R 16,946.70
R 16,946.70
R 16,946.70 - R 16,946.70
R 16,946.70
Available for backorder

Circuit Breaker Compact Nsx400F 36 Ka At 415 Vac Micrologic 2 3 Trip Unit 250 A 4 Poles 4DCircuit Breaker Compact Nsx400F 36 Ka At 415 Vac Microlog...

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R 16,946.70 - R 16,946.70
R 16,946.70
R 16,946.70 - R 16,946.70
R 16,946.70
Available for backorder
Available for backorder

circuit breaker ComPact NSX600S DC, 100 kA at 750 VDC, TM-DC trip unit, 600 A rating, 4 poles

Schneider Electric
R 46,519.30 - R 46,519.30
R 46,519.30
R 46,519.30 - R 46,519.30
R 46,519.30
Available for backorder

Circuit Breaker Compact Nsx600S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 600 A Rating 4 PolesCircuit Breaker Compact Nsx600S Dc 100 Ka At 750 Vdc Tm Dc...

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R 46,519.30 - R 46,519.30
R 46,519.30
R 46,519.30 - R 46,519.30
R 46,519.30
Available for backorder
Available for backorder

circuit breaker ComPact NSX500S DC, 100 kA at 750 VDC, TM-DC trip unit, 500 A rating, 4 poles

Schneider Electric
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder

Circuit Breaker Compact Nsx500S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 500 A Rating 4 PolesCircuit Breaker Compact Nsx500S Dc 100 Ka At 750 Vdc Tm Dc...

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R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder
Available for backorder

circuit breaker ComPact NSX400S DC, 100 kA at 750 VDC, TM-DC trip unit, 400 A rating, 4 poles

Schneider Electric
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder

Circuit Breaker Compact Nsx400S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 400 A Rating 4 PolesCircuit Breaker Compact Nsx400S Dc 100 Ka At 750 Vdc Tm Dc...

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R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder
Available for backorder

circuit breaker ComPact NSX320S DC, 100 kA at 750 VDC, TM-DC trip unit, 320 A rating, 4 poles

Schneider Electric
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder

Circuit Breaker Compact Nsx320S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 320 A Rating 4 PolesCircuit Breaker Compact Nsx320S Dc 100 Ka At 750 Vdc Tm Dc...

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R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder
Available for backorder

circuit breaker ComPact NSX250S DC, 100 kA at 750 VDC, TM-DC trip unit, 250 A rating, 4 poles

Schneider Electric
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder

Circuit Breaker Compact Nsx250S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 250 A Rating 4 PolesCircuit Breaker Compact Nsx250S Dc 100 Ka At 750 Vdc Tm Dc...

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R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX250S DC, 100 kA at 750 VDC, 250 A, without trip unit, 4 poles

Schneider Electric
R 6,114.82 - R 6,114.82
R 6,114.82
R 6,114.82 - R 6,114.82
R 6,114.82
Available for backorder

Circuit Breaker Basic Frame Compact Nsx250S Dc 100 Ka At 750 Vdc 250 A Without Trip Unit 4 PolesCircuit Breaker Basic Frame Compact Nsx250S Dc 100 ...

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R 6,114.82 - R 6,114.82
R 6,114.82
R 6,114.82 - R 6,114.82
R 6,114.82
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX160F DC, 36 kA at 750 VDC, 160 A, without trip unit, 4 poles

Schneider Electric
R 5,606.59 - R 5,606.59
R 5,606.59
R 5,606.59 - R 5,606.59
R 5,606.59
Available for backorder

Circuit Breaker Basic Frame Compact Nsx160F Dc 36 Ka At 750 Vdc 160 A Without Trip Unit 4 PolesCircuit Breaker Basic Frame Compact Nsx160F Dc 36 Ka...

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R 5,606.59 - R 5,606.59
R 5,606.59
R 5,606.59 - R 5,606.59
R 5,606.59
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX100F DC, 36 kA at 750 VDC, 100 A, without trip unit, 4 poles

Schneider Electric
R 4,850.77 - R 4,850.77
R 4,850.77
R 4,850.77 - R 4,850.77
R 4,850.77
Available for backorder

Circuit Breaker Basic Frame Compact Nsx100F Dc 36 Ka At 750 Vdc 100 A Without Trip Unit 4 PolesCircuit Breaker Basic Frame Compact Nsx100F Dc 36 Ka...

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R 4,850.77 - R 4,850.77
R 4,850.77
R 4,850.77 - R 4,850.77
R 4,850.77
Available for backorder
Available for backorder

circuit breaker ComPact NSX250HB1, 75 kA at 690 VAC, TMD trip unit 125 A, 4 poles 4d

Schneider Electric
R 20,766.84 - R 20,766.84
R 20,766.84
R 20,766.84 - R 20,766.84
R 20,766.84
Available for backorder

Circuit Breaker Compact Nsx250Hb1 75 Ka At 690 Vac Tmd Trip Unit 125 A 4 Poles 4DCircuit Breaker Compact Nsx250Hb1 75 Ka At 690 Vac Tmd Trip Unit 1...

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R 20,766.84 - R 20,766.84
R 20,766.84
R 20,766.84 - R 20,766.84
R 20,766.84
Available for backorder
Available for backorder

circuit breaker ComPact NSX100HB1, 75 kA at 690 VAC, TMD trip unit 80 A, 4 poles 4d

Schneider Electric
R 10,208.27 - R 10,208.27
R 10,208.27
R 10,208.27 - R 10,208.27
R 10,208.27
Available for backorder

Circuit Breaker Compact Nsx100Hb1 75 Ka At 690 Vac Tmd Trip Unit 80 A 4 Poles 4DCircuit Breaker Compact Nsx100Hb1 75 Ka At 690 Vac Tmd Trip Unit 80...

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R 10,208.27 - R 10,208.27
R 10,208.27
R 10,208.27 - R 10,208.27
R 10,208.27
Available for backorder
Available for backorder

switch disconnector ComPact NSX630 NA, 4 poles, 630 A

Schneider Electric
R 17,909.57 - R 17,909.57
R 17,909.57
R 17,909.57 - R 17,909.57
R 17,909.57
Available for backorder

Switch Disconnector Compact Nsx630 Na 4 Poles 630 ASwitch Disconnector Compact Nsx630 Na 4 Poles 630 A is built for safe, reliable use in homes, of...

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R 17,909.57 - R 17,909.57
R 17,909.57
R 17,909.57 - R 17,909.57
R 17,909.57
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630F, 36 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 19,282.06 - R 19,282.06
R 19,282.06
R 19,282.06 - R 19,282.06
R 19,282.06
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630F 36 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx630F ...

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R 19,282.06 - R 19,282.06
R 19,282.06
R 19,282.06 - R 19,282.06
R 19,282.06
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630L, 150 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 28,230.85 - R 28,230.85
R 28,230.85
R 28,230.85 - R 28,230.85
R 28,230.85
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630L 150 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx630L...

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R 28,230.85 - R 28,230.85
R 28,230.85
R 28,230.85 - R 28,230.85
R 28,230.85
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630H, 70 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 23,331.27 - R 23,331.27
R 23,331.27
R 23,331.27 - R 23,331.27
R 23,331.27
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630H 70 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx630H ...

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R 23,331.27 - R 23,331.27
R 23,331.27
R 23,331.27 - R 23,331.27
R 23,331.27
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630N, 50 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 21,210.26 - R 21,210.26
R 21,210.26
R 21,210.26 - R 21,210.26
R 21,210.26
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630N 50 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx630N ...

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R 21,210.26 - R 21,210.26
R 21,210.26
R 21,210.26 - R 21,210.26
R 21,210.26
Available for backorder
Available for backorder

switch disconnector ComPact NSX400 NA, 4 poles, 400 A

Schneider Electric
R 11,530.21 - R 11,530.21
R 11,530.21
R 11,530.21 - R 11,530.21
R 11,530.21
Available for backorder

Switch Disconnector Compact Nsx400 Na 4 Poles 400 ASwitch Disconnector Compact Nsx400 Na 4 Poles 400 A is built for safe, reliable use in homes, of...

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R 11,530.21 - R 11,530.21
R 11,530.21
R 11,530.21 - R 11,530.21
R 11,530.21
Available for backorder
Available for backorder

LV432596 - long terminal shield for spreaders, Compact NSX, EasyPact CVS, 4 poles, pitch 52.5 mm

Schneider Electric
R 1,795.21 - R 1,795.21
R 1,795.21
R 1,795.21 - R 1,795.21
R 1,795.21
Available for backorder

Lv432596 Long Terminal Shield for Spreaders Compact Nsx Easypact Cvs 4 Poles Pitch 52 5 MmLv432596 Long Terminal Shield for Spreaders Compact Nsx E...

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R 1,795.21 - R 1,795.21
R 1,795.21
R 1,795.21 - R 1,795.21
R 1,795.21
Available for backorder
Available for backorder

plug-in kit, ComPact NSX 400/630 with Vigi add-on module, 4 poles

Schneider Electric
R 11,043.93 - R 11,043.93
R 11,043.93
R 11,043.93 - R 11,043.93
R 11,043.93
Available for backorder

Plug In Kit Compact Nsx 400 630 With Vigi Add On Module 4 PolesPlug In Kit Compact Nsx 400 630 With Vigi Add On Module 4 Poles is built for safe, r...

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R 11,043.93 - R 11,043.93
R 11,043.93
R 11,043.93 - R 11,043.93
R 11,043.93
Available for backorder

plug in base, ComPact NSX 400/630, front/rear connected, 4 poles

Schneider Electric
R 10,878.85 - R 10,878.85
R 10,878.85
R 10,878.85 - R 10,878.85
R 10,878.85
69 in stock

Plug In Base Compact Nsx 400 630 Front Rear Connected 4 PolesPlug In Base Compact Nsx 400 630 Front Rear Connected 4 Poles is built for safe, relia...

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R 10,878.85 - R 10,878.85
R 10,878.85
R 10,878.85 - R 10,878.85
R 10,878.85
Available for backorder

spreaders 45 mm to 70 mm pitch, ComPact NSX 400/630, 4 poles, set of 4 parts

Schneider Electric
R 1,984.73 - R 1,984.73
R 1,984.73
R 1,984.73 - R 1,984.73
R 1,984.73
Available for backorder

Spreaders 45 Mm To 70 Mm Pitch Compact Nsx 400 630 4 Poles Set Of 4 PartsSpreaders 45 Mm To 70 Mm Pitch Compact Nsx 400 630 4 Poles Set Of 4 Parts ...

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R 1,984.73 - R 1,984.73
R 1,984.73
R 1,984.73 - R 1,984.73
R 1,984.73
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX400F, 36 kA at 415 VAC 50/60 Hz, 400 A, without trip unit, 4 poles

Schneider Electric
R 10,712.27 - R 10,712.27
R 10,712.27
R 10,712.27 - R 10,712.27
R 10,712.27
Available for backorder

Circuit Breaker Basic Frame Compact Nsx400F 36 Ka At 415 Vac 50 60 Hz 400 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx400F ...

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R 10,712.27 - R 10,712.27
R 10,712.27
R 10,712.27 - R 10,712.27
R 10,712.27
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX400L, 150 kA at 415 VAC 50/60 Hz, 400 A, without trip unit, 4 poles

Schneider Electric
R 15,683.82 - R 15,683.82
R 15,683.82
R 15,683.82 - R 15,683.82
R 15,683.82
Available for backorder

Circuit Breaker Basic Frame Compact Nsx400L 150 Ka At 415 Vac 50 60 Hz 400 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx400L...

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R 15,683.82 - R 15,683.82
R 15,683.82
R 15,683.82 - R 15,683.82
R 15,683.82
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX400H, 70 kA at 415 VAC 50/60 Hz, 400 A, without trip unit, 4 poles

Schneider Electric
R 12,961.82 - R 12,961.82
R 12,961.82
R 12,961.82 - R 12,961.82
R 12,961.82
Available for backorder

Circuit Breaker Basic Frame Compact Nsx400H 70 Ka At 415 Vac 50 60 Hz 400 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx400H ...

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R 12,961.82 - R 12,961.82
R 12,961.82
R 12,961.82 - R 12,961.82
R 12,961.82
Available for backorder