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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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Circuit breaker ComPacT NSX100HB1, 75kA at 690VAC, MA trip unit 12.5A, 3 poles 3d

Schneider Electric
R 7,379.05 - R 7,379.05
R 7,379.05
R 7,379.05 - R 7,379.05
R 7,379.05
135 in stock

This ComPacT NSX100HB1 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 7,379.05 - R 7,379.05
R 7,379.05
R 7,379.05 - R 7,379.05
R 7,379.05

circuit breaker basic frame, ComPacT NSX100S, 100 kA at 415 VAC 50/60 Hz, 100 A, without trip unit, 3 poles

Schneider Electric
R 3,984.85 - R 3,984.85
R 3,984.85
R 3,984.85 - R 3,984.85
R 3,984.85
148 in stock

This is a 3 poles basic frame for ComPacT NSX100S. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 3,984.85 - R 3,984.85
R 3,984.85
R 3,984.85 - R 3,984.85
R 3,984.85

circuit breaker basic frame, ComPacT NSX100N, 50 kA at 415 VAC 50/60 Hz, 100 A, without trip unit, 4 poles

Schneider Electric
R 4,281.21 - R 4,281.21
R 4,281.21
R 4,281.21 - R 4,281.21
R 4,281.21
97 in stock

This is a 4 poles basic frame for ComPacT NSX100N. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 4,281.21 - R 4,281.21
R 4,281.21
R 4,281.21 - R 4,281.21
R 4,281.21

circuit breaker basic frame, ComPacT NSX100N, 50 kA at 415 VAC 50/60 Hz, 100 A, without trip unit, 3 poles

Schneider Electric
R 3,293.26 - R 3,293.26
R 3,293.26
R 3,293.26 - R 3,293.26
R 3,293.26
943 in stock

This is a 3 poles basic frame for ComPacT NSX100N. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 3,293.26 - R 3,293.26
R 3,293.26
R 3,293.26 - R 3,293.26
R 3,293.26

circuit breaker basic frame, ComPacT NSX100H, 70 kA at 415 VAC 50/60 Hz, 100 A, without trip unit, 4 poles

Schneider Electric
R 4,709.36 - R 4,709.36
R 4,709.36
R 4,709.36 - R 4,709.36
R 4,709.36
142 in stock

This is a 4 poles basic frame for ComPacT NSX100H. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 4,709.36 - R 4,709.36
R 4,709.36
R 4,709.36 - R 4,709.36
R 4,709.36

circuit breaker basic frame, ComPacT NSX100H, 70 kA at 415 VAC 50/60 Hz, 100 A, without trip unit, 3 poles

Schneider Electric
R 3,622.58 - R 3,622.58
R 3,622.58
R 3,622.58 - R 3,622.58
R 3,622.58
566 in stock

This is a 3 poles basic frame for ComPacT NSX100H. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 3,622.58 - R 3,622.58
R 3,622.58
R 3,622.58 - R 3,622.58
R 3,622.58

circuit breaker basic frame, ComPacT NSX100F, 36 kA at 415 VAC 50/60 Hz, 100 A, without trip unit, 4 poles

Schneider Electric
R 3,892.05 - R 3,892.05
R 3,892.05
R 3,892.05 - R 3,892.05
R 3,892.05
49 in stock

This is a 4 poles basic frame for ComPacT NSX100F. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 3,892.05 - R 3,892.05
R 3,892.05
R 3,892.05 - R 3,892.05
R 3,892.05

circuit breaker basic frame, ComPacT NSX100F, 36 kA at 415 VAC 50/60 Hz, 100 A, without trip unit, 3 poles

Schneider Electric
R 2,993.87 - R 2,993.87
R 2,993.87
R 2,993.87 - R 2,993.87
R 2,993.87
5603 in stock

This is a 3 poles basic frame for ComPacT NSX100F. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 2,993.87 - R 2,993.87
R 2,993.87
R 2,993.87 - R 2,993.87
R 2,993.87

circuit breaker basic frame, ComPacT NSX100B, 25 kA at 415 VAC 50/60 Hz, 100 A, without trip unit, 4 poles

Schneider Electric
R 3,538.23 - R 3,538.23
R 3,538.23
R 3,538.23 - R 3,538.23
R 3,538.23
23 in stock

This is a 4 poles basic frame for ComPacT NSX100B. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 3,538.23 - R 3,538.23
R 3,538.23
R 3,538.23 - R 3,538.23
R 3,538.23

circuit breaker basic frame, ComPacT NSX100B, 25 kA at 415 VAC 50/60 Hz, 100 A, without trip unit, 3 poles

Schneider Electric
R 2,721.70 - R 2,721.70
R 2,721.70
R 2,721.70 - R 2,721.70
R 2,721.70
501 in stock

This is a 3 poles basic frame for ComPacT NSX100B. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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R 2,721.70 - R 2,721.70
R 2,721.70
R 2,721.70 - R 2,721.70
R 2,721.70

trip unit TM100D for ComPacT NSX 100/160/250 circuit breakers, thermal magnetic, rating 100 A, 4 poles 3d

Schneider Electric
R 3,341.77 - R 3,341.77
R 3,341.77
R 3,341.77 - R 3,341.77
R 3,341.77
46 in stock

This TM100D is a 4 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 100A rating thermal-magnetic trip uni...

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R 3,341.77 - R 3,341.77
R 3,341.77
R 3,341.77 - R 3,341.77
R 3,341.77

trip unit TM80D for ComPacT NSX 100/160/250 circuit breakers, thermal magnetic, rating 80 A, 4 poles 3d

Schneider Electric
R 3,341.77 - R 3,341.77
R 3,341.77
R 3,341.77 - R 3,341.77
R 3,341.77
7 in stock

This TM80D is a 4 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 80A rating thermal-magnetic trip unit ...

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R 3,341.77 - R 3,341.77
R 3,341.77
R 3,341.77 - R 3,341.77
R 3,341.77

trip unit TM63D for ComPacT NSX 100/160/250 circuit breakers, thermal magnetic, rating 63 A, 4 poles 3d

Schneider Electric
R 3,194.76 - R 3,194.76
R 3,194.76
R 3,194.76 - R 3,194.76
R 3,194.76
211 in stock

This TM63D is a 4 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 63A rating thermal-magnetic trip unit ...

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R 3,194.76 - R 3,194.76
R 3,194.76
R 3,194.76 - R 3,194.76
R 3,194.76

trip unit TM40D for ComPacT NSX 100/160 circuit breakers, thermal magnetic, rating 40 A, 4 poles 3d

Schneider Electric
R 3,194.76 - R 3,194.76
R 3,194.76
R 3,194.76 - R 3,194.76
R 3,194.76
163 in stock

This TM40D is a 4 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 40A rating thermal-magnetic trip unit is a...

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R 3,194.76 - R 3,194.76
R 3,194.76
R 3,194.76 - R 3,194.76
R 3,194.76

trip unit TM32D for ComPacT NSX 100/160 circuit breakers, thermal magnetic, rating 32 A, 4 poles 3d

Schneider Electric
R 3,194.76 - R 3,194.76
R 3,194.76
R 3,194.76 - R 3,194.76
R 3,194.76
27 in stock

This TM32D is a 4 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 32A rating thermal-magnetic trip unit is a...

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R 3,194.76 - R 3,194.76
R 3,194.76
R 3,194.76 - R 3,194.76
R 3,194.76

trip unit TM25D for ComPacT NSX 100 circuit breakers, thermal magnetic, rating 25 A, 4 poles 3d

Schneider Electric
R 3,194.76 - R 3,194.76
R 3,194.76
R 3,194.76 - R 3,194.76
R 3,194.76
55 in stock

This TM25D is a 4 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100 circuit breakers. This 25A rating thermal-magnetic trip unit is an op...

View full details
R 3,194.76 - R 3,194.76
R 3,194.76
R 3,194.76 - R 3,194.76
R 3,194.76

trip unit TM100D for ComPacT NSX 100/160/250 circuit breakers, thermal magnetic, rating 100 A, 4 poles 4d

Schneider Electric
R 3,620.26 - R 3,620.26
R 3,620.26
R 3,620.26 - R 3,620.26
R 3,620.26
71 in stock

This TM100D is a 4 poles 4d thermal-magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 100A rating thermal-magnetic trip uni...

View full details
R 3,620.26 - R 3,620.26
R 3,620.26
R 3,620.26 - R 3,620.26
R 3,620.26

trip unit TM80D for ComPacT NSX 100/160/250 circuit breakers, thermal magnetic, rating 80 A, 4 poles 4d

Schneider Electric
R 3,620.26 - R 3,620.26
R 3,620.26
R 3,620.26 - R 3,620.26
R 3,620.26
33 in stock

This TM80D is a 4 poles 4d thermal-magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 80A rating thermal-magnetic trip unit ...

View full details
R 3,620.26 - R 3,620.26
R 3,620.26
R 3,620.26 - R 3,620.26
R 3,620.26

trip unit TM63D for ComPacT NSX 100/160/250 circuit breakers, thermal magnetic, rating 63 A, 4 poles 4d

Schneider Electric
R 3,460.99 - R 3,460.99
R 3,460.99
R 3,460.99 - R 3,460.99
R 3,460.99
55 in stock

This TM63D is a 4 poles 4d thermal-magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 63A rating thermal-magnetic trip unit ...

View full details
R 3,460.99 - R 3,460.99
R 3,460.99
R 3,460.99 - R 3,460.99
R 3,460.99

trip unit TM40D for ComPacT NSX 100/160 circuit breakers, thermal magnetic, rating 40 A, 4 poles 4d

Schneider Electric
R 3,460.99 - R 3,460.99
R 3,460.99
R 3,460.99 - R 3,460.99
R 3,460.99
47 in stock

This TM40D is a 4 poles 4d thermal-magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 40A rating thermal-magnetic trip unit is a...

View full details
R 3,460.99 - R 3,460.99
R 3,460.99
R 3,460.99 - R 3,460.99
R 3,460.99

trip unit TM32D for ComPacT NSX 100/160 circuit breakers, thermal magnetic, rating 32 A, 4 poles 4d

Schneider Electric
R 3,460.99 - R 3,460.99
R 3,460.99
R 3,460.99 - R 3,460.99
R 3,460.99
22 in stock

This TM32D is a 4 poles 4d thermal-magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 32A rating thermal-magnetic trip unit is a...

View full details
R 3,460.99 - R 3,460.99
R 3,460.99
R 3,460.99 - R 3,460.99
R 3,460.99

trip unit TM25D for ComPacT NSX 100 circuit breakers, thermal magnetic, rating 25 A, 4 poles 4d

Schneider Electric
R 3,460.99 - R 3,460.99
R 3,460.99
R 3,460.99 - R 3,460.99
R 3,460.99
Only 2 left!

This TM25D is a 4 poles 4d thermal-magnetic trip unit used on ComPacT NSX 100 circuit breakers. This 25A rating thermal-magnetic trip unit is an op...

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R 3,460.99 - R 3,460.99
R 3,460.99
R 3,460.99 - R 3,460.99
R 3,460.99

trip unit MicroLogic 2.2 for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 100A, 4 poles 4d

Schneider Electric
R 3,401.71 - R 3,401.71
R 3,401.71
R 3,401.71 - R 3,401.71
R 3,401.71
39 in stock

This MicroLogic 2.2 is a 4 poles 4d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 100A rating electronic trip unit is...

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R 3,401.71 - R 3,401.71
R 3,401.71
R 3,401.71 - R 3,401.71
R 3,401.71

trip unit TM100D for ComPacT NSX 100/160/250 circuit breakers, thermal magnetic, rating 100 A, 3 poles 3d

Schneider Electric
R 2,180.60 - R 2,180.60
R 2,180.60
R 2,180.60 - R 2,180.60
R 2,180.60
950 in stock

This TM100D is a 3 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 100A rating thermal-magnetic trip uni...

View full details
R 2,180.60 - R 2,180.60
R 2,180.60
R 2,180.60 - R 2,180.60
R 2,180.60