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

Schneider Electric
R 6,733.22 - R 6,733.22
R 6,733.22
R 6,733.22 - R 6,733.22
R 6,733.22
221 in stock

This MicroLogic 2.3 is a 3 poles 3d electronic trip unit used on ComPacT NSX 630 circuit breakers. This 630A rating electronic trip unit is an opti...

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R 6,733.22 - R 6,733.22
R 6,733.22
R 6,733.22 - R 6,733.22
R 6,733.22

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

Schneider Electric
R 3,757.33 - R 3,757.33
R 3,757.33
R 3,757.33 - R 3,757.33
R 3,757.33
14 in stock

This MicroLogic 1.3 M is a 3 poles 3d electronic trip unit used on ComPacT NSX 630 circuit breakers. This 500A rating electronic trip unit is an op...

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R 3,757.33 - R 3,757.33
R 3,757.33
R 3,757.33 - R 3,757.33
R 3,757.33

Circuit breaker ComPacT NSX400HB1, 75kA at 690VAC, MicroLogic 2.3 trip unit, 400A, 3 poles 3d

Schneider Electric
R 26,456.77 - R 26,456.77
R 26,456.77
R 26,456.77 - R 26,456.77
R 26,456.77
Only 5 left!

This ComPacT NSX400HB1 is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all ...

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R 26,456.77 - R 26,456.77
R 26,456.77
R 26,456.77 - R 26,456.77
R 26,456.77

Circuit breaker ComPacT NSX400HB1, 75kA at 690VAC, MicroLogic 1.3 M trip unit 320A, 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
24 in stock

This ComPacT NSX400HB1 is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for moto...

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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

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
34 in stock

This is a 4 poles basic frame for ComPacT NSX400N. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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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

circuit breaker basic frame, ComPacT NSX400N, 50 kA at 415 VAC 50/60 Hz, 400 A, without trip unit, 3 poles

Schneider Electric
R 8,837.63 - R 8,837.63
R 8,837.63
R 8,837.63 - R 8,837.63
R 8,837.63
436 in stock

This is a 3 poles basic frame for ComPacT NSX400N. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 8,837.63 - R 8,837.63
R 8,837.63
R 8,837.63 - R 8,837.63
R 8,837.63

circuit breaker basic frame, ComPacT NSX400L, 150 kA at 415 VAC 50/60 Hz, 400 A, without trip unit, 3 poles

Schneider Electric
R 11,762.86 - R 11,762.86
R 11,762.86
R 11,762.86 - R 11,762.86
R 11,762.86
11 in stock

This is a 3 poles basic frame for ComPacT NSX400L. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 11,762.86 - R 11,762.86
R 11,762.86
R 11,762.86 - R 11,762.86
R 11,762.86

circuit breaker basic frame, ComPacT NSX400H, 70 kA at 415 VAC 50/60 Hz, 400 A, without trip unit, 3 poles

Schneider Electric
R 9,721.38 - R 9,721.38
R 9,721.38
R 9,721.38 - R 9,721.38
R 9,721.38
63 in stock

This is a 3 poles basic frame for ComPacT NSX400H. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 9,721.38 - R 9,721.38
R 9,721.38
R 9,721.38 - R 9,721.38
R 9,721.38

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
70 in stock

This is a 4 poles basic frame for ComPacT NSX400F. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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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

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
492 in stock

This is a 3 poles basic frame for ComPacT NSX400F. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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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

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
24 in stock

This MicroLogic 5.3 E (Energy) is a 4 poles 4d electronic trip unit used on ComPacT NSX 400/630 circuit breakers. This 400A rating electronic trip ...

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R 9,875.41 - R 9,875.41
R 9,875.41
R 9,875.41 - R 9,875.41
R 9,875.41

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
78 in stock

This MicroLogic 2.3 is a 4 poles 4d electronic trip unit used on ComPacT NSX 400/630 circuit breakers. This 400A rating electronic trip unit is an ...

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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 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
52 in stock

This MicroLogic 5.3 E (Energy) is a 3 poles 3d electronic trip unit used on ComPacT NSX 400/630 circuit breakers. This 400A rating electronic trip ...

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R 7,406.55 - R 7,406.55
R 7,406.55
R 7,406.55 - R 7,406.55
R 7,406.55

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
Only 1 left!

This MicroLogic 2.3 M is a 3 poles 3d electronic trip unit used on ComPacT NSX 400/630 circuit breakers. This 320A rating magnetic trip unit is an ...

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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
473 in stock

This MicroLogic 2.3 is a 3 poles 3d electronic trip unit used on ComPacT NSX 400/630 circuit breakers. This 400A rating electronic trip unit is an ...

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
18 in stock

This MicroLogic 2.3 is a 3 poles 3d electronic trip unit used on ComPacT NSX 400/630 circuit breakers. This 250A rating electronic trip unit is an ...

View full details
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
265 in stock

This MicroLogic 1.3 M is a 3 poles 3d electronic trip unit used on ComPacT NSX 400/630 circuit breakers. This 320A rating electronic trip unit is a...

View full details
R 3,415.76 - R 3,415.76
R 3,415.76
R 3,415.76 - R 3,415.76
R 3,415.76

Circuit breaker ComPacT NSX250HB1, 75kA at 690VAC, TMD trip unit 200A, 4 poles 4d

Schneider Electric
R 21,904.69 - R 21,904.69
R 21,904.69
R 21,904.69 - R 21,904.69
R 21,904.69
6 in stock

This ComPacT NSX250HB1 is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all ...

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R 21,904.69 - R 21,904.69
R 21,904.69
R 21,904.69 - R 21,904.69
R 21,904.69

Circuit breaker ComPacT NSX250HB1, 75kA at 690VAC, TMD trip unit 250A, 3 poles 3d

Schneider Electric
R 18,139.02 - R 18,139.02
R 18,139.02
R 18,139.02 - R 18,139.02
R 18,139.02
35 in stock

This ComPacT NSX250HB1 is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all ...

View full details
R 18,139.02 - R 18,139.02
R 18,139.02
R 18,139.02 - R 18,139.02
R 18,139.02

Circuit breaker ComPacT NSX250HB1, 75kA at 690VAC, TMD trip unit 200A, 3 poles 3d

Schneider Electric
R 18,139.02 - R 18,139.02
R 18,139.02
R 18,139.02 - R 18,139.02
R 18,139.02
21 in stock

This ComPacT NSX250HB1 is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all ...

View full details
R 18,139.02 - R 18,139.02
R 18,139.02
R 18,139.02 - R 18,139.02
R 18,139.02

Circuit breaker ComPacT NSX250HB1, 75kA at 690VAC, MA trip unit 220A, 3 poles 3d

Schneider Electric
R 17,286.25 - R 17,286.25
R 17,286.25
R 17,286.25 - R 17,286.25
R 17,286.25
33 in stock

This ComPacT NSX250HB1 is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for moto...

View full details
R 17,286.25 - R 17,286.25
R 17,286.25
R 17,286.25 - R 17,286.25
R 17,286.25

Circuit breaker ComPacT NSX250HB1, 75kA at 690VAC, MA trip unit 150A, 3 poles 3d

Schneider Electric
R 16,017.74 - R 16,017.74
R 16,017.74
R 16,017.74 - R 16,017.74
R 16,017.74
43 in stock

This ComPacT NSX250HB1 is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for moto...

View full details
R 16,017.74 - R 16,017.74
R 16,017.74
R 16,017.74 - R 16,017.74
R 16,017.74

Circuit breaker basic frame, ComPacT NSX250S DC, 100kA at 750 VDC, 250A, 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
24 in stock

It is a 3 poles basic frame for ComPacT NSX 250S DC circuit breaker, designed to optimize space and breaking capacity. It's an optimal choice for a...

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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

circuit breaker basic frame, ComPacT NSX250S, 100 kA at 415 VAC 50/60 Hz, 250 A, without trip unit, 3 poles

Schneider Electric
R 7,638.24 - R 7,638.24
R 7,638.24
R 7,638.24 - R 7,638.24
R 7,638.24
12 in stock

This is a 3 poles basic frame for ComPacT NSX250S. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 7,638.24 - R 7,638.24
R 7,638.24
R 7,638.24 - R 7,638.24
R 7,638.24