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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 NSX630F, 36kA at 415VAC, MicroLogic 2.3 trip unit 630A, 4 poles 4d

Schneider Electric
R 27,553.17 - R 27,553.17
R 27,553.17
R 27,553.17 - R 27,553.17
R 27,553.17
Available for backorder

Circuit Breaker Compact Nsx630F 36Ka At 415Vac Micrologic 2 3 Trip Unit 630A 4 Poles 4DCircuit Breaker Compact Nsx630F 36Ka At 415Vac Micrologic 2 ...

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R 27,553.17 - R 27,553.17
R 27,553.17
R 27,553.17 - R 27,553.17
R 27,553.17
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
45 in stock

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

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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

trip unit MicroLogic 6.3 E for ComPacT NSX 630 circuit breakers, electronic, rating 630A, 4 poles 4d

Schneider Electric
R 14,990.84 - R 14,990.84
R 14,990.84
R 14,990.84 - R 14,990.84
R 14,990.84
Available for backorder

R 14,990.84 - R 14,990.84
R 14,990.84
R 14,990.84 - R 14,990.84
R 14,990.84
Available for backorder
Available for backorder

Switch disconnector ComPacT NSX400...630NA, DC, 630A rating, 4 poles

Schneider Electric
R 25,360.86 - R 25,360.86
R 25,360.86
R 25,360.86 - R 25,360.86
R 25,360.86
Available for backorder

Switch Disconnector Compact Nsx400 630Na Dc 630A Rating 4 PolesSwitch Disconnector Compact Nsx400 630Na Dc 630A Rating 4 Poles is built for safe, r...

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R 25,360.86 - R 25,360.86
R 25,360.86
R 25,360.86 - R 25,360.86
R 25,360.86
Available for backorder
Available for backorder

trip unit MicroLogic 5.3 E for ComPacT NSX 630 circuit breakers, electronic, rating 630A, 4 poles 4d

Schneider Electric
R 11,850.47 - R 11,850.47
R 11,850.47
R 11,850.47 - R 11,850.47
R 11,850.47
Available for backorder

Click here to view spec sheet.

R 11,850.47 - R 11,850.47
R 11,850.47
R 11,850.47 - R 11,850.47
R 11,850.47
Available for backorder
Available for backorder

Switch disconnector ComPacT NSX500NA DC PV, 500A rating, 4 poles

Schneider Electric
R 38,194.31 - R 38,194.31
R 38,194.31
R 38,194.31 - R 38,194.31
R 38,194.31
Available for backorder

Switch Disconnector Compact Nsx500Na Dc Pv 500A Rating 4 PolesSwitch Disconnector Compact Nsx500Na Dc Pv 500A Rating 4 Poles is built for safe, rel...

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R 38,194.31 - R 38,194.31
R 38,194.31
R 38,194.31 - R 38,194.31
R 38,194.31
Available for backorder

trip unit MicroLogic 2.3 for ComPacT NSX 630 circuit breakers, electronic, rating 630A, 4 poles 4d

Schneider Electric
R 8,977.63 - R 8,977.63
R 8,977.63
R 8,977.63 - R 8,977.63
R 8,977.63
85 in stock

Trip Unit Micrologic 2 3 for Compact Nsx 630 Circuit Breakers Electronic Rating 630A 4 Poles 4DTrip Unit Micrologic 2 3 for Compact Nsx 630 Circuit...

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R 8,977.63 - R 8,977.63
R 8,977.63
R 8,977.63 - R 8,977.63
R 8,977.63
Available for backorder

trip unit MicroLogic 1.3 M for ComPacT NSX 630 circuit breakers, electronic, rating 500 A, 4 poles 3d

Schneider Electric
R 4,651.94 - R 4,651.94
R 4,651.94
R 4,651.94 - R 4,651.94
R 4,651.94
Available for backorder

Trip Unit Micrologic 1 3 M for Compact Nsx 630 Circuit Breakers Electronic Rating 500 A 4 Poles 3DTrip Unit Micrologic 1 3 M for Compact Nsx 630 Ci...

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R 4,651.94 - R 4,651.94
R 4,651.94
R 4,651.94 - R 4,651.94
R 4,651.94
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX400HB1, 75kA at 690VAC, MicroLogic 2.3 trip unit 400A, 4 poles 4d

Schneider Electric
R 32,624.90 - R 32,624.90
R 32,624.90
R 32,624.90 - R 32,624.90
R 32,624.90
Available for backorder

Circuit Breaker Compact Nsx400Hb1 75Ka At 690Vac Micrologic 2 3 Trip Unit 400A 4 Poles 4DCircuit Breaker Compact Nsx400Hb1 75Ka At 690Vac Micrologi...

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R 32,624.90 - R 32,624.90
R 32,624.90
R 32,624.90 - R 32,624.90
R 32,624.90
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX400N, 50kA at 415VAC, MicroLogic 2.3 trip unit 400A, 4 poles 4d

Schneider Electric
R 19,264.83 - R 19,264.83
R 19,264.83
R 19,264.83 - R 19,264.83
R 19,264.83
Available for backorder

Circuit Breaker Compact Nsx400N 50Ka At 415Vac Micrologic 2 3 Trip Unit 400A 4 Poles 4DCircuit Breaker Compact Nsx400N 50Ka At 415Vac Micrologic 2 ...

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R 19,264.83 - R 19,264.83
R 19,264.83
R 19,264.83 - R 19,264.83
R 19,264.83
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX400N, 50kA at 415VAC, MicroLogic 2.3 trip unit 250A, 4 poles 4d

Schneider Electric
R 18,017.96 - R 18,017.96
R 18,017.96
R 18,017.96 - R 18,017.96
R 18,017.96
Available for backorder

Circuit Breaker Compact Nsx400N 50Ka At 415Vac Micrologic 2 3 Trip Unit 250A 4 Poles 4DCircuit Breaker Compact Nsx400N 50Ka At 415Vac Micrologic 2 ...

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R 18,017.96 - R 18,017.96
R 18,017.96
R 18,017.96 - R 18,017.96
R 18,017.96
Available for backorder

circuit breaker basic frame, ComPacT NSX400N, 50 kA at 415 VAC 50/60 Hz, 400 A, without trip unit, 4 poles

Schneider Electric
R 11,783.49 - R 11,783.49
R 11,783.49
R 11,783.49 - R 11,783.49
R 11,783.49
29 in stock

Circuit Breaker Basic Frame Compact Nsx400N 50 Ka At 415 Vac 50 60 Hz 400 A Without Trip Unit 4 PolesCircuit Breaker Basic Frame Compact Nsx400N 50...

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R 11,783.49 - R 11,783.49
R 11,783.49
R 11,783.49 - R 11,783.49
R 11,783.49
Available for backorder

Circuit breaker ComPacT NSX400K, 36kA at 800VAC, 10kA at 1000VAC, MicroLogic 2.3 trip unit, 400A, 4 poles 4d

Schneider Electric
R 30,482.42 - R 30,482.42
R 30,482.42
R 30,482.42 - R 30,482.42
R 30,482.42
Available for backorder

Circuit Breaker Compact Nsx400K 36Ka At 800Vac 10Ka At 1000Vac Micrologic 2 3 Trip Unit 400A 4 Poles 4DCircuit Breaker Compact Nsx400K 36Ka At 800V...

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R 30,482.42 - R 30,482.42
R 30,482.42
R 30,482.42 - R 30,482.42
R 30,482.42
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX400H, 70kA at 415VAC, MicroLogic 2.3 trip unit 400A, 4 poles 4d

Schneider Electric
R 20,443.18 - R 20,443.18
R 20,443.18
R 20,443.18 - R 20,443.18
R 20,443.18
Available for backorder

Circuit Breaker Compact Nsx400H 70Ka At 415Vac Micrologic 2 3 Trip Unit 400A 4 Poles 4DCircuit Breaker Compact Nsx400H 70Ka At 415Vac Micrologic 2 ...

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R 20,443.18 - R 20,443.18
R 20,443.18
R 20,443.18 - R 20,443.18
R 20,443.18
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
Only 4 left!

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

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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

Circuit breaker ComPacT NSX400 DC PV, 400A, 1000 V, TM-D trip unit, 4 poles

Schneider Electric
R 41,582.44 - R 41,582.44
R 41,582.44
R 41,582.44 - R 41,582.44
R 41,582.44
Available for backorder

Circuit Breaker Compact Nsx400 Dc Pv 400A 1000 V Tm D Trip Unit 4 PolesCircuit Breaker Compact Nsx400 Dc Pv 400A 1000 V Tm D Trip Unit 4 Poles is b...

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R 41,582.44 - R 41,582.44
R 41,582.44
R 41,582.44 - R 41,582.44
R 41,582.44
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX400F DC, 36kA at 750 VDC, TM-DC trip unit, 400 A rating, 4 poles

Schneider Electric
R 22,269.19 - R 22,269.19
R 22,269.19
R 22,269.19 - R 22,269.19
R 22,269.19
Available for backorder

Circuit Breaker Compact Nsx400F Dc 36Ka At 750 Vdc Tm Dc Trip Unit 400 A Rating 4 PolesCircuit Breaker Compact Nsx400F Dc 36Ka At 750 Vdc Tm Dc Tri...

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R 22,269.19 - R 22,269.19
R 22,269.19
R 22,269.19 - R 22,269.19
R 22,269.19
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX320 DC PV, 320A, 1000 V, TM-D trip unit, 4 poles

Schneider Electric
R 41,335.47 - R 41,335.47
R 41,335.47
R 41,335.47 - R 41,335.47
R 41,335.47
Available for backorder

Circuit Breaker Compact Nsx320 Dc Pv 320A 1000 V Tm D Trip Unit 4 PolesCircuit Breaker Compact Nsx320 Dc Pv 320A 1000 V Tm D Trip Unit 4 Poles is b...

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R 41,335.47 - R 41,335.47
R 41,335.47
R 41,335.47 - R 41,335.47
R 41,335.47
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX320F DC, 36kA at 750 VDC, TM-DC trip unit, 320 A rating, 4 poles

Schneider Electric
R 21,466.01 - R 21,466.01
R 21,466.01
R 21,466.01 - R 21,466.01
R 21,466.01
Available for backorder

Circuit Breaker Compact Nsx320F Dc 36Ka At 750 Vdc Tm Dc Trip Unit 320 A Rating 4 PolesCircuit Breaker Compact Nsx320F Dc 36Ka At 750 Vdc Tm Dc Tri...

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R 21,466.01 - R 21,466.01
R 21,466.01
R 21,466.01 - R 21,466.01
R 21,466.01
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX400F, 36kA at 415VAC, MicroLogic 2.3 trip unit 400A, 4 poles 4d

Schneider Electric
R 17,738.77 - R 17,738.77
R 17,738.77
R 17,738.77 - R 17,738.77
R 17,738.77
Available for backorder

Circuit Breaker Compact Nsx400F 36Ka At 415Vac Micrologic 2 3 Trip Unit 400A 4 Poles 4DCircuit Breaker Compact Nsx400F 36Ka At 415Vac Micrologic 2 ...

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R 17,738.77 - R 17,738.77
R 17,738.77
R 17,738.77 - R 17,738.77
R 17,738.77
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
50 in stock

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

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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

trip unit MicroLogic 6.3 E for ComPacT NSX 400/630 circuit breakers, electronic, rating 400A, 4 poles 4d

Schneider Electric
R 12,492.37 - R 12,492.37
R 12,492.37
R 12,492.37 - R 12,492.37
R 12,492.37
Available for backorder

R 12,492.37 - R 12,492.37
R 12,492.37
R 12,492.37 - R 12,492.37
R 12,492.37
Available for backorder

trip unit MicroLogic 5.3 E for ComPacT NSX 400/630 circuit breakers, electronic, rating 400A, 4 poles 4d

Schneider Electric
R 9,875.41 - R 9,875.41
R 9,875.41
R 9,875.41 - R 9,875.41
R 9,875.41
28 in stock

R 9,875.41 - R 9,875.41
R 9,875.41
R 9,875.41 - R 9,875.41
R 9,875.41
Available for backorder

Switch disconnector ComPacT NSX400...630NA, DC, 400A rating, 4 poles

Schneider Electric
R 16,819.98 - R 16,819.98
R 16,819.98
R 16,819.98 - R 16,819.98
R 16,819.98
Available for backorder

Switch Disconnector Compact Nsx400 630Na Dc 400A Rating 4 PolesSwitch Disconnector Compact Nsx400 630Na Dc 400A Rating 4 Poles is built for safe, r...

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R 16,819.98 - R 16,819.98
R 16,819.98
R 16,819.98 - R 16,819.98
R 16,819.98
Available for backorder