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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 basic frame, ComPact NSX630F, 36 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 19,282.06 - R 19,282.06
R 19,282.06
R 19,282.06 - R 19,282.06
R 19,282.06
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630F 36 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx630F ...

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R 19,282.06 - R 19,282.06
R 19,282.06
R 19,282.06 - R 19,282.06
R 19,282.06
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630S, 100 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 3 poles

Schneider Electric
R 19,248.32 - R 19,248.32
R 19,248.32
R 19,248.32 - R 19,248.32
R 19,248.32
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630S 100 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 3 Poles 1Circuit Breaker Basic Frame Compact Nsx630S...

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R 19,248.32 - R 19,248.32
R 19,248.32
R 19,248.32 - R 19,248.32
R 19,248.32
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630F, 36 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 3 poles

Schneider Electric
R 14,461.56 - R 14,461.56
R 14,461.56
R 14,461.56 - R 14,461.56
R 14,461.56
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630F 36 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 3 Poles 1Circuit Breaker Basic Frame Compact Nsx630F ...

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R 14,461.56 - R 14,461.56
R 14,461.56
R 14,461.56 - R 14,461.56
R 14,461.56
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630L, 150 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 28,230.85 - R 28,230.85
R 28,230.85
R 28,230.85 - R 28,230.85
R 28,230.85
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630L 150 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx630L...

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R 28,230.85 - R 28,230.85
R 28,230.85
R 28,230.85 - R 28,230.85
R 28,230.85
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630H, 70 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 23,331.27 - R 23,331.27
R 23,331.27
R 23,331.27 - R 23,331.27
R 23,331.27
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630H 70 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx630H ...

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R 23,331.27 - R 23,331.27
R 23,331.27
R 23,331.27 - R 23,331.27
R 23,331.27
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630N, 50 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 21,210.26 - R 21,210.26
R 21,210.26
R 21,210.26 - R 21,210.26
R 21,210.26
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630N 50 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 Poles 1Circuit Breaker Basic Frame Compact Nsx630N ...

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R 21,210.26 - R 21,210.26
R 21,210.26
R 21,210.26 - R 21,210.26
R 21,210.26
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630L, 150 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 3 poles

Schneider Electric
R 21,173.14 - R 21,173.14
R 21,173.14
R 21,173.14 - R 21,173.14
R 21,173.14
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630L 150 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 3 Poles 1Circuit Breaker Basic Frame Compact Nsx630L...

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R 21,173.14 - R 21,173.14
R 21,173.14
R 21,173.14 - R 21,173.14
R 21,173.14
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630H, 70 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 3 poles

Schneider Electric
R 17,498.48 - R 17,498.48
R 17,498.48
R 17,498.48 - R 17,498.48
R 17,498.48
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630H 70 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 3 Poles 1Circuit Breaker Basic Frame Compact Nsx630H ...

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R 17,498.48 - R 17,498.48
R 17,498.48
R 17,498.48 - R 17,498.48
R 17,498.48
Available for backorder
Available for backorder

circuit breaker basic frame, ComPact NSX630N, 50 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 3 poles

Schneider Electric
R 15,907.71 - R 15,907.71
R 15,907.71
R 15,907.71 - R 15,907.71
R 15,907.71
Available for backorder

Circuit Breaker Basic Frame Compact Nsx630N 50 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 3 Poles 1Circuit Breaker Basic Frame Compact Nsx630N ...

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R 15,907.71 - R 15,907.71
R 15,907.71
R 15,907.71 - R 15,907.71
R 15,907.71
Available for backorder
Available for backorder

LV432777 - Circuit breaker Compact NSX400H, 70 kA at 415 VAC, Micrologic 2.3 M trip unit 320 A, 3 poles 3d

Schneider Electric
R 15,528.14 - R 15,528.14
R 15,528.14
R 15,528.14 - R 15,528.14
R 15,528.14
Available for backorder

Lv432777 Circuit Breaker Compact Nsx400H 70 Ka At 415 Vac Micrologic 2 3 M Trip Unit 320 A 3 Poles 3DLv432777 Circuit Breaker Compact Nsx400H 70 Ka...

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R 15,528.14 - R 15,528.14
R 15,528.14
R 15,528.14 - R 15,528.14
R 15,528.14
Available for backorder
Available for backorder

circuit breaker ComPact NSX400N, 50 kA at 415 VAC, MicroLogic 2.3 M trip unit 320 A, 3 poles 3d

Schneider Electric
R 14,644.38 - R 14,644.38
R 14,644.38
R 14,644.38 - R 14,644.38
R 14,644.38
Available for backorder

Circuit Breaker Compact Nsx400N 50 Ka At 415 Vac Micrologic 2 3 M Trip Unit 320 A 3 Poles 3DCircuit Breaker Compact Nsx400N 50 Ka At 415 Vac Microl...

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R 14,644.38 - R 14,644.38
R 14,644.38
R 14,644.38 - R 14,644.38
R 14,644.38
Available for backorder
Available for backorder

switch disconnector ComPact NSX400 NA, 4 poles, 400 A

Schneider Electric
R 11,530.21 - R 11,530.21
R 11,530.21
R 11,530.21 - R 11,530.21
R 11,530.21
Available for backorder

Switch Disconnector Compact Nsx400 Na 4 Poles 400 ASwitch Disconnector Compact Nsx400 Na 4 Poles 400 A is built for safe, reliable use in homes, of...

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R 11,530.21 - R 11,530.21
R 11,530.21
R 11,530.21 - R 11,530.21
R 11,530.21
Available for backorder
Available for backorder

LV432749, Circuit breaker Compact NSX400N, 50 kA at 415 VAC, Micrologic 1.3 M trip unit 320 A, 3 poles 3d

Schneider Electric
R 12,253.36 - R 12,253.36
R 12,253.36
R 12,253.36 - R 12,253.36
R 12,253.36
Available for backorder

Lv432749 Circuit Breaker Compact Nsx400N 50 Ka At 415 Vac Micrologic 1 3 M Trip Unit 320 A 3 Poles 3DLv432749 Circuit Breaker Compact Nsx400N 50 Ka...

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R 12,253.36 - R 12,253.36
R 12,253.36
R 12,253.36 - R 12,253.36
R 12,253.36
Available for backorder
Available for backorder

current transformer module with voltage output, ComPact NSX400/630, 400 A rating, 3 poles

Schneider Electric
R 8,298.16 - R 8,298.16
R 8,298.16
R 8,298.16 - R 8,298.16
R 8,298.16
Available for backorder

Current Transformer Module With Voltage Output Compact Nsx400 630 400 A Rating 3 PolesCurrent Transformer Module With Voltage Output Compact Nsx400...

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R 8,298.16 - R 8,298.16
R 8,298.16
R 8,298.16 - R 8,298.16
R 8,298.16
Available for backorder
Available for backorder

communicating motor mechanism module MTc 400/630, ComPact NSX400/630, 220/240 VAC 50/60 Hz

Schneider Electric
R 28,179.92 - R 28,179.92
R 28,179.92
R 28,179.92 - R 28,179.92
R 28,179.92
Available for backorder

Communicating Motor Mechanism Module Mtc 400 630 Compact Nsx400 630 220 240 Vac 50 60 HzCommunicating Motor Mechanism Module Mtc 400 630 Compact Ns...

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R 28,179.92 - R 28,179.92
R 28,179.92
R 28,179.92 - R 28,179.92
R 28,179.92
Available for backorder
Available for backorder

keylock adapter for motor mechanism locking, ComPact NSX 400/630, keylock not included

Schneider Electric
R 2,109.29 - R 2,109.29
R 2,109.29
R 2,109.29 - R 2,109.29
R 2,109.29
Available for backorder

Keylock Adapter for Motor Mechanism Locking Compact Nsx 400 630 Keylock Not IncludedKeylock Adapter for Motor Mechanism Locking Compact Nsx 400 630...

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R 2,109.29 - R 2,109.29
R 2,109.29
R 2,109.29 - R 2,109.29
R 2,109.29
Available for backorder
Available for backorder

operation counter, ComPact NSX400/630, mechanical 5 digit display

Schneider Electric
R 3,409.32 - R 3,409.32
R 3,409.32
R 3,409.32 - R 3,409.32
R 3,409.32
Available for backorder

Operation Counter Compact Nsx400 630 Mechanical 5 Digit DisplayOperation Counter Compact Nsx400 630 Mechanical 5 Digit Display is built for safe, r...

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R 3,409.32 - R 3,409.32
R 3,409.32
R 3,409.32 - R 3,409.32
R 3,409.32
Available for backorder
Available for backorder

standard motor mechanism module MT400/630, ComPact NSX400/630, 440/480 VAC 60 Hz

Schneider Electric
R 18,837.12 - R 18,837.12
R 18,837.12
R 18,837.12 - R 18,837.12
R 18,837.12
Available for backorder

Standard Motor Mechanism Module Mt400 630 Compact Nsx400 630 440 480 Vac 60 HzStandard Motor Mechanism Module Mt400 630 Compact Nsx400 630 440 480 ...

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R 18,837.12 - R 18,837.12
R 18,837.12
R 18,837.12 - R 18,837.12
R 18,837.12
Available for backorder

standard motor mechanism module MT400/630, ComPact NSX400/630, 110/130 VDC

Schneider Electric
R 18,837.12 - R 18,837.12
R 18,837.12
R 18,837.12 - R 18,837.12
R 18,837.12
Only 4 left!

Standard Motor Mechanism Module Mt400 630 Compact Nsx400 630 110 130 VdcStandard Motor Mechanism Module Mt400 630 Compact Nsx400 630 110 130 Vdc is...

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R 18,837.12 - R 18,837.12
R 18,837.12
R 18,837.12 - R 18,837.12
R 18,837.12
Available for backorder

standard motor mechanism module MT400/630, ComPact NSX400/630, 24/30 VDC

Schneider Electric
R 18,837.12 - R 18,837.12
R 18,837.12
R 18,837.12 - R 18,837.12
R 18,837.12
Available for backorder

Standard Motor Mechanism Module Mt400 630 Compact Nsx400 630 24 30 VdcStandard Motor Mechanism Module Mt400 630 Compact Nsx400 630 24 30 Vdc is bui...

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R 18,837.12 - R 18,837.12
R 18,837.12
R 18,837.12 - R 18,837.12
R 18,837.12
Available for backorder
Available for backorder

standard motor mechanism module MT400/630, ComPact NSX400/630, 380/415 VAC 50/60 Hz

Schneider Electric
R 17,581.31 - R 17,581.31
R 17,581.31
R 17,581.31 - R 17,581.31
R 17,581.31
Available for backorder

Standard Motor Mechanism Module Mt400 630 Compact Nsx400 630 380 415 Vac 50 60 HzStandard Motor Mechanism Module Mt400 630 Compact Nsx400 630 380 4...

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R 17,581.31 - R 17,581.31
R 17,581.31
R 17,581.31 - R 17,581.31
R 17,581.31
Available for backorder

LV432641 - Motor mechanism, MT 400-630, Compact NSX400/630, PowerPact Multistandard L, 220 to 240 VAC 50/60 Hz, 208 to 277 VAC 60 Hz

Schneider Electric
R 17,581.31 - R 17,581.31
R 17,581.31
R 17,581.31 - R 17,581.31
R 17,581.31
224 in stock

Lv432641 Motor Mechanism Mt 400 630 Compact Nsx400 630 Powerpact Multistandard L 220 To 240 Vac 50 60 Hz 208 To 277 Vac 60 HzLv432641 Motor Mechani...

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R 17,581.31 - R 17,581.31
R 17,581.31
R 17,581.31 - R 17,581.31
R 17,581.31
Available for backorder

standard motor mechanism module MT400/630, ComPact NSX400/630, 110/130 VAC 50/60 Hz

Schneider Electric
R 17,581.31 - R 17,581.31
R 17,581.31
R 17,581.31 - R 17,581.31
R 17,581.31
Available for backorder

Standard Motor Mechanism Module Mt400 630 Compact Nsx400 630 110 130 Vac 50 60 HzStandard Motor Mechanism Module Mt400 630 Compact Nsx400 630 110 1...

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R 17,581.31 - R 17,581.31
R 17,581.31
R 17,581.31 - R 17,581.31
R 17,581.31
Available for backorder

toggle padlocking device, fixed adapter, ComPact NSX 400/630, OFF or ON position

Schneider Electric
R 1,262.15 - R 1,262.15
R 1,262.15
R 1,262.15 - R 1,262.15
R 1,262.15
112 in stock

Toggle Padlocking Device Fixed Adapter Compact Nsx 400 630 Off Or On PositionToggle Padlocking Device Fixed Adapter Compact Nsx 400 630 Off Or On P...

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R 1,262.15 - R 1,262.15
R 1,262.15
R 1,262.15 - R 1,262.15
R 1,262.15