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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 NSX100B, 25kA at 415VAC, TMD trip unit 80A, 4 poles 4d

Schneider Electric
R 7,158.45 - R 7,158.45
R 7,158.45
R 7,158.45 - R 7,158.45
R 7,158.45
Available for backorder

This ComPacT NSX100B is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

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R 7,158.45 - R 7,158.45
R 7,158.45
R 7,158.45 - R 7,158.45
R 7,158.45
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 63A, 4 poles 4d

Schneider Electric
R 6,999.15 - R 6,999.15
R 6,999.15
R 6,999.15 - R 6,999.15
R 6,999.15
Available for backorder

This ComPacT NSX100B is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 6,999.15 - R 6,999.15
R 6,999.15
R 6,999.15 - R 6,999.15
R 6,999.15
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 50A, 4 poles 4d

Schneider Electric
R 6,999.21 - R 6,999.21
R 6,999.21
R 6,999.21 - R 6,999.21
R 6,999.21
Available for backorder

This ComPacT NSX100B is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 6,999.21 - R 6,999.21
R 6,999.21
R 6,999.21 - R 6,999.21
R 6,999.21
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 40A, 4 poles 4d

Schneider Electric
R 6,999.21 - R 6,999.21
R 6,999.21
R 6,999.21 - R 6,999.21
R 6,999.21
Available for backorder

This ComPacT NSX100B is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 6,999.21 - R 6,999.21
R 6,999.21
R 6,999.21 - R 6,999.21
R 6,999.21
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 32A, 4 poles 4d

Schneider Electric
R 6,999.21 - R 6,999.21
R 6,999.21
R 6,999.21 - R 6,999.21
R 6,999.21
Available for backorder

This ComPacT NSX100B is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 6,999.21 - R 6,999.21
R 6,999.21
R 6,999.21 - R 6,999.21
R 6,999.21
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 25A, 4 poles 4d

Schneider Electric
R 6,999.21 - R 6,999.21
R 6,999.21
R 6,999.21 - R 6,999.21
R 6,999.21
Available for backorder

This ComPacT NSX100B is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 6,999.21 - R 6,999.21
R 6,999.21
R 6,999.21 - R 6,999.21
R 6,999.21
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, MicroLogic 2.2 trip unit 100A, 4 poles 4d

Schneider Electric
R 6,939.92 - R 6,939.92
R 6,939.92
R 6,939.92 - R 6,939.92
R 6,939.92
Available for backorder

This ComPacT NSX100B is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 6,939.92 - R 6,939.92
R 6,939.92
R 6,939.92 - R 6,939.92
R 6,939.92
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 100A, 3 poles 3d

Schneider Electric
R 4,902.29 - R 4,902.29
R 4,902.29
R 4,902.29 - R 4,902.29
R 4,902.29
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 4,902.29 - R 4,902.29
R 4,902.29
R 4,902.29 - R 4,902.29
R 4,902.29
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 80A, 3 poles 3d

Schneider Electric
R 4,902.29 - R 4,902.29
R 4,902.29
R 4,902.29 - R 4,902.29
R 4,902.29
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 4,902.29 - R 4,902.29
R 4,902.29
R 4,902.29 - R 4,902.29
R 4,902.29
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 63A, 3 poles 3d

Schneider Electric
R 4,806.34 - R 4,806.34
R 4,806.34
R 4,806.34 - R 4,806.34
R 4,806.34
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 4,806.34 - R 4,806.34
R 4,806.34
R 4,806.34 - R 4,806.34
R 4,806.34
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 50A, 3 poles 3d

Schneider Electric
R 4,806.34 - R 4,806.34
R 4,806.34
R 4,806.34 - R 4,806.34
R 4,806.34
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 4,806.34 - R 4,806.34
R 4,806.34
R 4,806.34 - R 4,806.34
R 4,806.34
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 40A, 3 poles 3d

Schneider Electric
R 4,806.38 - R 4,806.38
R 4,806.38
R 4,806.38 - R 4,806.38
R 4,806.38
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 4,806.38 - R 4,806.38
R 4,806.38
R 4,806.38 - R 4,806.38
R 4,806.38
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 32A, 3 poles 3d

Schneider Electric
R 4,806.38 - R 4,806.38
R 4,806.38
R 4,806.38 - R 4,806.38
R 4,806.38
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 4,806.38 - R 4,806.38
R 4,806.38
R 4,806.38 - R 4,806.38
R 4,806.38
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 25A, 3 poles 3d

Schneider Electric
R 4,806.38 - R 4,806.38
R 4,806.38
R 4,806.38 - R 4,806.38
R 4,806.38
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 4,806.38 - R 4,806.38
R 4,806.38
R 4,806.38 - R 4,806.38
R 4,806.38
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, TMD trip unit 16A, 3 poles 3d

Schneider Electric
R 4,806.38 - R 4,806.38
R 4,806.38
R 4,806.38 - R 4,806.38
R 4,806.38
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 4,806.38 - R 4,806.38
R 4,806.38
R 4,806.38 - R 4,806.38
R 4,806.38
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, MicroLogic 2.2 trip unit 100A, 3 poles 3d

Schneider Electric
R 5,338.40 - R 5,338.40
R 5,338.40
R 5,338.40 - R 5,338.40
R 5,338.40
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 5,338.40 - R 5,338.40
R 5,338.40
R 5,338.40 - R 5,338.40
R 5,338.40
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX100B, 25kA at 415VAC, MicroLogic 2.2 trip unit 40A, 3 poles 3d

Schneider Electric
R 5,223.28 - R 5,223.28
R 5,223.28
R 5,223.28 - R 5,223.28
R 5,223.28
Available for backorder

This ComPacT NSX100B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all st...

View full details
R 5,223.28 - R 5,223.28
R 5,223.28
R 5,223.28 - R 5,223.28
R 5,223.28
Available for backorder
Available for backorder

trip unit TM50D for ComPacT NSX 100/160 circuit breakers, thermal magnetic, rating 50 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
Available for backorder

This TM50D is a 4 poles 4d thermal-magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 50A 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
Available for backorder
Available for backorder

trip unit TM16D for ComPacT NSX 100 circuit breakers, thermal magnetic, rating 16 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
Available for backorder

This TM16D is a 4 poles 4d thermal-magnetic trip unit used on ComPacT NSX 100 circuit breakers. This 16A rating thermal-magnetic trip unit is an op...

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
Available for backorder
Available for backorder

trip unit MicroLogic 6.2 E for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 100A, 4 poles 4d

Schneider Electric
R 5,443.53 - R 5,443.53
R 5,443.53
R 5,443.53 - R 5,443.53
R 5,443.53
Available for backorder

This MicroLogic 6.2 E (Energy) is a 4 poles 4d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 100A rating electronic t...

View full details
R 5,443.53 - R 5,443.53
R 5,443.53
R 5,443.53 - R 5,443.53
R 5,443.53
Available for backorder
Available for backorder

trip unit MicroLogic 6.2 E for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 40A, 4 poles 4d

Schneider Electric
R 5,204.02 - R 5,204.02
R 5,204.02
R 5,204.02 - R 5,204.02
R 5,204.02
Available for backorder

This MicroLogic 6.2 E (Energy) is a 4 poles 4d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 40A rating electronic tr...

View full details
R 5,204.02 - R 5,204.02
R 5,204.02
R 5,204.02 - R 5,204.02
R 5,204.02
Available for backorder
Available for backorder

trip unit MicroLogic 5.2 E for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 100A, 4 poles 4d

Schneider Electric
R 4,303.20 - R 4,303.20
R 4,303.20
R 4,303.20 - R 4,303.20
R 4,303.20
Available for backorder

This MicroLogic 5.2 E (Energy) is a 4 poles 4d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 100A rating electronic t...

View full details
R 4,303.20 - R 4,303.20
R 4,303.20
R 4,303.20 - R 4,303.20
R 4,303.20
Available for backorder
Available for backorder

trip unit MicroLogic 5.2 E for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 40A, 4 poles 4d

Schneider Electric
R 4,197.38 - R 4,197.38
R 4,197.38
R 4,197.38 - R 4,197.38
R 4,197.38
Available for backorder

This MicroLogic 5.2 E (Energy) is a 4 poles 4d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 40A rating electronic tr...

View full details
R 4,197.38 - R 4,197.38
R 4,197.38
R 4,197.38 - R 4,197.38
R 4,197.38
Available for backorder
Available for backorder

trip unit MicroLogic 2.2 for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 40A, 4 poles 4d

Schneider Electric
R 3,252.08 - R 3,252.08
R 3,252.08
R 3,252.08 - R 3,252.08
R 3,252.08
Available for backorder

This MicroLogic 2.2 is a 4 poles 4d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 40A rating electronic trip unit is ...

View full details
R 3,252.08 - R 3,252.08
R 3,252.08
R 3,252.08 - R 3,252.08
R 3,252.08
Available for backorder