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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, 36kA at 415VAC, MicroLogic 2.3 trip unit 250A, 3 poles 3d

Schneider Electric
R 12,710.05 - R 12,710.05
R 12,710.05
R 12,710.05 - R 12,710.05
R 12,710.05
Available for backorder

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

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R 12,710.05 - R 12,710.05
R 12,710.05
R 12,710.05 - R 12,710.05
R 12,710.05
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX400F, 36kA at 415VAC, MicroLogic 1.3 M trip unit 320A, 3 poles 3d

Schneider Electric
R 11,449.94 - R 11,449.94
R 11,449.94
R 11,449.94 - R 11,449.94
R 11,449.94
Available for backorder

Circuit Breaker Compact Nsx400F 36Ka At 415Vac Micrologic 1 3 M Trip Unit 320A 3 Poles 3DCircuit Breaker Compact Nsx400F 36Ka At 415Vac Micrologic ...

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R 11,449.94 - R 11,449.94
R 11,449.94
R 11,449.94 - R 11,449.94
R 11,449.94
Available for backorder

circuit breaker basic frame, ComPacT NSX400F, 36 kA at 415 VAC 50/60 Hz, 400 A, without trip unit, 3 poles

Schneider Electric
R 8,034.20 - R 8,034.20
R 8,034.20
R 8,034.20 - R 8,034.20
R 8,034.20
1009 in stock

Circuit Breaker Basic Frame Compact Nsx400F 36 Ka At 415 Vac 50 60 Hz 400 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx400F 36...

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R 8,034.20 - R 8,034.20
R 8,034.20
R 8,034.20 - R 8,034.20
R 8,034.20
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
Available for backorder

Switch disconnector ComPacT NSX400NA DC PV, 400A 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 Nsx400Na Dc Pv 400A Rating 4 PolesSwitch Disconnector Compact Nsx400Na Dc Pv 400A 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 400/630 circuit breakers, electronic, rating 400A, 4 poles 4d

Schneider Electric
R 7,481.36 - R 7,481.36
R 7,481.36
R 7,481.36 - R 7,481.36
R 7,481.36
77 in stock

Trip Unit Micrologic 2 3 for Compact Nsx 400 630 Circuit Breakers Electronic Rating 400A 4 Poles 4DTrip Unit Micrologic 2 3 for Compact Nsx 400 630...

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R 7,481.36 - R 7,481.36
R 7,481.36
R 7,481.36 - R 7,481.36
R 7,481.36

trip unit MicroLogic 2.3 for ComPacT NSX 400/630 circuit breakers, electronic, rating 250A, 4 poles 4d

Schneider Electric
R 6,234.47 - R 6,234.47
R 6,234.47
R 6,234.47 - R 6,234.47
R 6,234.47
Only 1 left!

Trip Unit Micrologic 2 3 for Compact Nsx 400 630 Circuit Breakers Electronic Rating 250A 4 Poles 4DTrip Unit Micrologic 2 3 for Compact Nsx 400 630...

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R 6,234.47 - R 6,234.47
R 6,234.47
R 6,234.47 - R 6,234.47
R 6,234.47
Available for backorder

trip unit MicroLogic 1.3 M for ComPacT NSX 400/630 circuit breakers, electronic, rating 320 A, 4 poles 3d

Schneider Electric
R 4,440.29 - R 4,440.29
R 4,440.29
R 4,440.29 - R 4,440.29
R 4,440.29
Available for backorder

Trip Unit Micrologic 1 3 M for Compact Nsx 400 630 Circuit Breakers Electronic Rating 320 A 4 Poles 3DTrip Unit Micrologic 1 3 M for Compact Nsx 40...

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R 4,440.29 - R 4,440.29
R 4,440.29
R 4,440.29 - R 4,440.29
R 4,440.29
Available for backorder
Available for backorder

trip unit MicroLogic 6.3 EM for ComPacT NSX 400/630 circuit breakers, electronic, rating 320 A, 3 poles 3d

Schneider Electric
R 8,710.14 - R 8,710.14
R 8,710.14
R 8,710.14 - R 8,710.14
R 8,710.14
Available for backorder

R 8,710.14 - R 8,710.14
R 8,710.14
R 8,710.14 - R 8,710.14
R 8,710.14
Available for backorder
Available for backorder

trip unit MicroLogic 6.3 E for ComPacT NSX 400/630 circuit breakers, electronic, rating 400A, 3 poles 3d

Schneider Electric
R 9,369.29 - R 9,369.29
R 9,369.29
R 9,369.29 - R 9,369.29
R 9,369.29
Available for backorder

R 9,369.29 - R 9,369.29
R 9,369.29
R 9,369.29 - R 9,369.29
R 9,369.29
Available for backorder

trip unit MicroLogic 5.3 E for ComPacT NSX 400/630 circuit breakers, electronic, rating 400A, 3 poles 3d

Schneider Electric
R 7,406.55 - R 7,406.55
R 7,406.55
R 7,406.55 - R 7,406.55
R 7,406.55
67 in stock

Click here to view spec sheet.

R 7,406.55 - R 7,406.55
R 7,406.55
R 7,406.55 - R 7,406.55
R 7,406.55
Available for backorder

Switch disconnector ComPacT NSX400...630NA, DC, 400A rating, 3 poles

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 630Na Dc 400A Rating 3 PolesSwitch Disconnector Compact Nsx400 630Na Dc 400A Rating 3 Poles is built for safe, r...

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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

trip unit MicroLogic 2.3 M for ComPacT NSX 400/630 circuit breakers, electronic, rating 320 A, 3 poles 3d

Schneider Electric
R 5,806.77 - R 5,806.77
R 5,806.77
R 5,806.77 - R 5,806.77
R 5,806.77
51 in stock

Trip Unit Micrologic 2 3 M for Compact Nsx 400 630 Circuit Breakers Electronic Rating 320 A 3 Poles 3DTrip Unit Micrologic 2 3 M for Compact Nsx 40...

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R 5,806.77 - R 5,806.77
R 5,806.77
R 5,806.77 - R 5,806.77
R 5,806.77

trip unit MicroLogic 2.3 for ComPacT NSX 400/630 circuit breakers, electronic, rating 400A, 3 poles 3d

Schneider Electric
R 5,611.02 - R 5,611.02
R 5,611.02
R 5,611.02 - R 5,611.02
R 5,611.02
446 in stock

Trip Unit Micrologic 2 3 for Compact Nsx 400 630 Circuit Breakers Electronic Rating 400A 3 Poles 3DTrip Unit Micrologic 2 3 for Compact Nsx 400 630...

View full details
R 5,611.02 - R 5,611.02
R 5,611.02
R 5,611.02 - R 5,611.02
R 5,611.02

trip unit MicroLogic 2.3 for ComPacT NSX 400/630 circuit breakers, electronic, rating 250A, 3 poles 3d

Schneider Electric
R 4,675.85 - R 4,675.85
R 4,675.85
R 4,675.85 - R 4,675.85
R 4,675.85
11 in stock

Trip Unit Micrologic 2 3 for Compact Nsx 400 630 Circuit Breakers Electronic Rating 250A 3 Poles 3DTrip Unit Micrologic 2 3 for Compact Nsx 400 630...

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R 4,675.85 - R 4,675.85
R 4,675.85
R 4,675.85 - R 4,675.85
R 4,675.85

trip unit MicroLogic 1.3 M for ComPacT NSX 400/630 circuit breakers, electronic, rating 320 A, 3 poles 3d

Schneider Electric
R 3,415.76 - R 3,415.76
R 3,415.76
R 3,415.76 - R 3,415.76
R 3,415.76
341 in stock

Trip Unit Micrologic 1 3 M for Compact Nsx 400 630 Circuit Breakers Electronic Rating 320 A 3 Poles 3DTrip Unit Micrologic 1 3 M for Compact Nsx 40...

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R 3,415.76 - R 3,415.76
R 3,415.76
R 3,415.76 - R 3,415.76
R 3,415.76
Available for backorder

Circuit breaker ComPacT NSX250HB2, 100kA at 690VAC, TMD trip unit 250A, 4 poles 4d

Schneider Electric
R 13,475.38 - R 13,475.38
R 13,475.38
R 13,475.38 - R 13,475.38
R 13,475.38
Available for backorder

Circuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Tmd Trip Unit 250A 4 Poles 4DCircuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Tmd Trip Unit 250A...

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R 13,475.38 - R 13,475.38
R 13,475.38
R 13,475.38 - R 13,475.38
R 13,475.38
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX250HB2, 100kA at 690VAC, TMD trip unit 200A, 4 poles 4d

Schneider Electric
R 13,459.51 - R 13,459.51
R 13,459.51
R 13,459.51 - R 13,459.51
R 13,459.51
Available for backorder

Circuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Tmd Trip Unit 200A 4 Poles 4DCircuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Tmd Trip Unit 200A...

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R 13,459.51 - R 13,459.51
R 13,459.51
R 13,459.51 - R 13,459.51
R 13,459.51
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX250HB2, 100kA at 690VAC, TMD trip unit 160A, 4 poles 4d

Schneider Electric
R 12,909.10 - R 12,909.10
R 12,909.10
R 12,909.10 - R 12,909.10
R 12,909.10
Available for backorder

Circuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Tmd Trip Unit 160A 4 Poles 4DCircuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Tmd Trip Unit 160A...

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R 12,909.10 - R 12,909.10
R 12,909.10
R 12,909.10 - R 12,909.10
R 12,909.10
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX250HB2, 100kA at 690VAC, TMD trip unit 125A, 4 poles 4d

Schneider Electric
R 12,965.55 - R 12,965.55
R 12,965.55
R 12,965.55 - R 12,965.55
R 12,965.55
Available for backorder

Circuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Tmd Trip Unit 125A 4 Poles 4DCircuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Tmd Trip Unit 125A...

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R 12,965.55 - R 12,965.55
R 12,965.55
R 12,965.55 - R 12,965.55
R 12,965.55
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX250HB2, 100kA at 690VAC, MicroLogic 6.2 E trip unit 250A, 4 poles 4d

Schneider Electric
R 20,740.29 - R 20,740.29
R 20,740.29
R 20,740.29 - R 20,740.29
R 20,740.29
Available for backorder

Circuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Micrologic 6 2 E Trip Unit 250A 4 Poles 4DCircuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Micro...

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R 20,740.29 - R 20,740.29
R 20,740.29
R 20,740.29 - R 20,740.29
R 20,740.29
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX250HB2, 100kA at 690VAC, MicroLogic 6.2 E trip unit 160A, 4 poles 4d

Schneider Electric
R 20,740.29 - R 20,740.29
R 20,740.29
R 20,740.29 - R 20,740.29
R 20,740.29
Available for backorder

Circuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Micrologic 6 2 E Trip Unit 160A 4 Poles 4DCircuit Breaker Compact Nsx250Hb2 100Ka At 690Vac Micro...

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R 20,740.29 - R 20,740.29
R 20,740.29
R 20,740.29 - R 20,740.29
R 20,740.29
Available for backorder