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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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Available for backorder

circuit breaker ComPact NSX100B, 25 kA at 415 VAC, TMD trip unit 63 A, 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

Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 63 A 4 Poles 4DCircuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 63 A 4...

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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, 25 kA at 415 VAC, TMD trip unit 80 A, 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

Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 80 A 4 Poles 4DCircuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 80 A 4...

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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, 25 kA at 415 VAC, TMD trip unit 25 A, 4 poles 3d

Schneider Electric
R 6,732.93 - R 6,732.93
R 6,732.93
R 6,732.93 - R 6,732.93
R 6,732.93
Available for backorder

Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 25 A 4 Poles 3DCircuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 25 A 4...

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R 6,732.93 - R 6,732.93
R 6,732.93
R 6,732.93 - R 6,732.93
R 6,732.93
Available for backorder
Available for backorder

circuit breaker ComPact NSX100B, 25 kA at 415 VAC, TMD trip unit 32 A, 4 poles 3d

Schneider Electric
R 6,732.93 - R 6,732.93
R 6,732.93
R 6,732.93 - R 6,732.93
R 6,732.93
Available for backorder

Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 32 A 4 Poles 3DCircuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 32 A 4...

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R 6,732.93 - R 6,732.93
R 6,732.93
R 6,732.93 - R 6,732.93
R 6,732.93
Available for backorder
Available for backorder

circuit breaker ComPact NSX100B, 25 kA at 415 VAC, TMD trip unit 40 A, 4 poles 3d

Schneider Electric
R 6,732.93 - R 6,732.93
R 6,732.93
R 6,732.93 - R 6,732.93
R 6,732.93
Available for backorder

Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 40 A 4 Poles 3DCircuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 40 A 4...

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R 6,732.93 - R 6,732.93
R 6,732.93
R 6,732.93 - R 6,732.93
R 6,732.93
Available for backorder
Available for backorder

circuit breaker ComPact NSX100B, 25 kA at 415 VAC, TMD trip unit 80 A, 4 poles 3d

Schneider Electric
R 6,879.96 - R 6,879.96
R 6,879.96
R 6,879.96 - R 6,879.96
R 6,879.96
Available for backorder

Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 80 A 4 Poles 3DCircuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 80 A 4...

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R 6,879.96 - R 6,879.96
R 6,879.96
R 6,879.96 - R 6,879.96
R 6,879.96
Available for backorder
Available for backorder

LV429560, Circuit breaker Compact NSX100B, 25 kA at 415 VAC, TMD trip unit 100 A, 4 poles 3d

Schneider Electric
R 6,372.97 - R 6,372.97
R 6,372.97
R 6,372.97 - R 6,372.97
R 6,372.97
Available for backorder

Lv429560 Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 100 A 4 Poles 3DLv429560 Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac T...

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R 6,372.97 - R 6,372.97
R 6,372.97
R 6,372.97 - R 6,372.97
R 6,372.97
Available for backorder
Available for backorder

circuit breaker ComPact NSX100B, 25 kA at 415 VAC, TMD trip unit 16 A, 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

Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 16 A 3 Poles 3DCircuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 16 A 3...

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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, 25 kA at 415 VAC, TMD trip unit 50 A, 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

Circuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 50 A 3 Poles 3DCircuit Breaker Compact Nsx100B 25 Ka At 415 Vac Tmd Trip Unit 50 A 3...

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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

NS retrofit escutcheon, ComPact NSX100/160/250, small cut-out

Schneider Electric
R 294.90 - R 294.90
R 294.90
R 294.90 - R 294.90
R 294.90
Available for backorder

Ns Retrofit Escutcheon Compact Nsx100 160 250 Small Cut OutNs Retrofit Escutcheon Compact Nsx100 160 250 Small Cut Out is built for safe, reliable ...

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R 294.90 - R 294.90
R 294.90
R 294.90 - R 294.90
R 294.90
Available for backorder
Available for backorder

escutcheon for toggle with trip unit access, fixed ComPact NSX100/160/250, IP30

Schneider Electric
R 216.89 - R 216.89
R 216.89
R 216.89 - R 216.89
R 216.89
Available for backorder

Escutcheon for Toggle With Trip Unit Access Fixed Compact Nsx100 160 250 Ip30Escutcheon for Toggle With Trip Unit Access Fixed Compact Nsx100 160 2...

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R 216.89 - R 216.89
R 216.89
R 216.89 - R 216.89
R 216.89
Available for backorder
Available for backorder

external neutral current transformer, ComPact NSX100, 25 A to 100 A, for 3 poles circuit breakers with Micrologic 5/6 trip unit

Schneider Electric
R 6,163.94 - R 6,163.94
R 6,163.94
R 6,163.94 - R 6,163.94
R 6,163.94
Available for backorder

External Neutral Current Transformer Compact Nsx100 25 A To 100 A for 3 Poles Circuit Breakers With Micrologic 5 6 Trip UnitExternal Neutral Curren...

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R 6,163.94 - R 6,163.94
R 6,163.94
R 6,163.94 - R 6,163.94
R 6,163.94
Available for backorder
Available for backorder

torque limiting screws, ComPact NSX 100/160/250, power connections, set of 12 parts

Schneider Electric
R 296.43 - R 296.43
R 296.43
R 296.43 - R 296.43
R 296.43
Available for backorder

Torque Limiting Screws Compact Nsx 100 160 250 Power Connections Set Of 12 PartsTorque Limiting Screws Compact Nsx 100 160 250 Power Connections Se...

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R 296.43 - R 296.43
R 296.43
R 296.43 - R 296.43
R 296.43
Available for backorder
Available for backorder

Earth-leakage VigiPacT add-on alarm module, ComPacT NSX 100/160/250, 200 VAC to 440 VAC, 30 mA to 30 A, 4 poles

Schneider Electric
R 9,816.43 - R 9,816.43
R 9,816.43
R 9,816.43 - R 9,816.43
R 9,816.43
Available for backorder

Earth Leakage Vigipact Add On Alarm Module Compact Nsx 100 160 250 200 Vac To 440 Vac 30 Ma To 30 A 4 PolesEarth Leakage Vigipact Add On Alarm Modu...

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R 9,816.43 - R 9,816.43
R 9,816.43
R 9,816.43 - R 9,816.43
R 9,816.43
Available for backorder
Available for backorder

current transformer module with voltage output, ComPact NSX100/160/250, 125 A rating, 3 poles

Schneider Electric
R 4,249.71 - R 4,249.71
R 4,249.71
R 4,249.71 - R 4,249.71
R 4,249.71
Available for backorder

Current Transformer Module With Voltage Output Compact Nsx100 160 250 125 A Rating 3 PolesCurrent Transformer Module With Voltage Output Compact Ns...

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R 4,249.71 - R 4,249.71
R 4,249.71
R 4,249.71 - R 4,249.71
R 4,249.71
Available for backorder
Available for backorder

current transformer module, ComPact NSX100/160/250, 100 A rating, 3 poles

Schneider Electric
R 5,142.18 - R 5,142.18
R 5,142.18
R 5,142.18 - R 5,142.18
R 5,142.18
Available for backorder

Current Transformer Module Compact Nsx100 160 250 100 A Rating 3 PolesCurrent Transformer Module Compact Nsx100 160 250 100 A Rating 3 Poles is bui...

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R 5,142.18 - R 5,142.18
R 5,142.18
R 5,142.18 - R 5,142.18
R 5,142.18
Available for backorder
Available for backorder

Wireless indication auxiliary, ComPacT NSX and ComPacT NS, circuit breaker status OF/SD/SDE

Schneider Electric
R 2,429.12 - R 2,429.12
R 2,429.12
R 2,429.12 - R 2,429.12
R 2,429.12
Available for backorder

R 2,429.12 - R 2,429.12
R 2,429.12
R 2,429.12 - R 2,429.12
R 2,429.12
Available for backorder
Available for backorder

Wireless indication auxiliary, ComPacT NSXm, circuit breaker status OF/SD

Schneider Electric
R 3,298.86 - R 3,298.86
R 3,298.86
R 3,298.86 - R 3,298.86
R 3,298.86
Available for backorder

R 3,298.86 - R 3,298.86
R 3,298.86
R 3,298.86 - R 3,298.86
R 3,298.86
Available for backorder
Available for backorder

keylock adapter for motor mechanism locking, ComPact NSX 100/160/250, Ronis keylock included

Schneider Electric
R 1,282.43 - R 1,282.43
R 1,282.43
R 1,282.43 - R 1,282.43
R 1,282.43
Available for backorder

Keylock Adapter for Motor Mechanism Locking Compact Nsx 100 160 250 Ronis Keylock IncludedKeylock Adapter for Motor Mechanism Locking Compact Nsx 1...

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R 1,282.43 - R 1,282.43
R 1,282.43
R 1,282.43 - R 1,282.43
R 1,282.43
Available for backorder
Available for backorder

standard motor mechanism module MT100/160, ComPact NSX100/160, 110/130 VDC

Schneider Electric
R 11,165.62 - R 11,165.62
R 11,165.62
R 11,165.62 - R 11,165.62
R 11,165.62
Available for backorder

Standard Motor Mechanism Module Mt100 160 Compact Nsx100 160 110 130 VdcStandard Motor Mechanism Module Mt100 160 Compact Nsx100 160 110 130 Vdc is...

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R 11,165.62 - R 11,165.62
R 11,165.62
R 11,165.62 - R 11,165.62
R 11,165.62
Available for backorder
Available for backorder

standard motor mechanism module MT100/160, ComPact NSX100/160, 24/30 VDC

Schneider Electric
R 10,961.21 - R 10,961.21
R 10,961.21
R 10,961.21 - R 10,961.21
R 10,961.21
Available for backorder

Standard Motor Mechanism Module Mt100 160 Compact Nsx100 160 24 30 VdcStandard Motor Mechanism Module Mt100 160 Compact Nsx100 160 24 30 Vdc is bui...

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R 10,961.21 - R 10,961.21
R 10,961.21
R 10,961.21 - R 10,961.21
R 10,961.21
Available for backorder
Available for backorder

standard motor mechanism module MT100/160, ComPact NSX100/160, 110/130 VAC 50/60 Hz

Schneider Electric
R 9,568.08 - R 9,568.08
R 9,568.08
R 9,568.08 - R 9,568.08
R 9,568.08
Available for backorder

Standard Motor Mechanism Module Mt100 160 Compact Nsx100 160 110 130 Vac 50 60 HzStandard Motor Mechanism Module Mt100 160 Compact Nsx100 160 110 1...

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R 9,568.08 - R 9,568.08
R 9,568.08
R 9,568.08 - R 9,568.08
R 9,568.08
Available for backorder
Available for backorder

MN undervoltage release, ComPacT NSX, rated voltage 48 VDC, screwless spring terminal connections

Schneider Electric
R 3,338.26 - R 3,338.26
R 3,338.26
R 3,338.26 - R 3,338.26
R 3,338.26
Available for backorder

Mn Undervoltage Release Compact Nsx Rated Voltage 48 Vdc Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Voltage 48 ...

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R 3,338.26 - R 3,338.26
R 3,338.26
R 3,338.26 - R 3,338.26
R 3,338.26
Available for backorder
Available for backorder

MN undervoltage release, ComPacT NSX, rated voltage 30 VDC, screwless spring terminal connections

Schneider Electric
R 3,219.18 - R 3,219.18
R 3,219.18
R 3,219.18 - R 3,219.18
R 3,219.18
Available for backorder

Mn Undervoltage Release Compact Nsx Rated Voltage 30 Vdc Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Voltage 30 ...

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R 3,219.18 - R 3,219.18
R 3,219.18
R 3,219.18 - R 3,219.18
R 3,219.18
Available for backorder