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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
R

standard MX shunt release, ComPact NSXm, rated voltage 250 VDC, 220/240 VAC 50 Hz, 208/240 VAC 60Hz, 277 VAC 60 Hz

Square D
R 2,041.72 - R 2,041.72
R 2,041.72
R 2,041.72 - R 2,041.72
R 2,041.72
Only 2 left!

This standard MX shunt trip is used on Compact NSXm and PowerPact B devices. This auxiliary is used for emergency off or failsafe remote opening ap...

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R 2,041.72 - R 2,041.72
R 2,041.72
R 2,041.72 - R 2,041.72
R 2,041.72
Available for backorder

standard MX shunt release, ComPact NSXm, rated voltage 125 VDC, 110/130 VAC 50/60Hz

Schneider Electric
R 2,041.73 - R 2,041.73
R 2,041.73
R 2,041.73 - R 2,041.73
R 2,041.73
Available for backorder

This standard MX shunt trip is used on Compact NSXm and PowerPact B devices. This auxiliary is used for emergency off or failsafe remote opening ap...

View full details
R 2,041.73 - R 2,041.73
R 2,041.73
R 2,041.73 - R 2,041.73
R 2,041.73
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630HB2, 100kA at 690VAC, MicroLogic 5.3 E trip unit 630A, 4 poles 4d

Schneider Electric
R 35,867.88 - R 35,867.88
R 35,867.88
R 35,867.88 - R 35,867.88
R 35,867.88
Available for backorder

This ComPacT NSX630HB2 is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all ...

View full details
R 35,867.88 - R 35,867.88
R 35,867.88
R 35,867.88 - R 35,867.88
R 35,867.88
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630HB2, 100kA at 690VAC, MicroLogic 2.3 trip unit 630A, 4 poles 4d

Schneider Electric
R 30,023.96 - R 30,023.96
R 30,023.96
R 30,023.96 - R 30,023.96
R 30,023.96
Available for backorder

This ComPacT NSX630HB2 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 30,023.96 - R 30,023.96
R 30,023.96
R 30,023.96 - R 30,023.96
R 30,023.96
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630HB2, 100kA at 690VAC, MicroLogic 2.3 trip unit 630A, 3 poles 3d

Schneider Electric
R 20,917.82 - R 20,917.82
R 20,917.82
R 20,917.82 - R 20,917.82
R 20,917.82
Available for backorder

This ComPacT NSX630HB2 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 20,917.82 - R 20,917.82
R 20,917.82
R 20,917.82 - R 20,917.82
R 20,917.82
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630HB1, 75kA at 690VAC, MicroLogic 2.3 trip unit 630A, 4 poles 4d

Schneider Electric
R 39,543.90 - R 39,543.90
R 39,543.90
R 39,543.90 - R 39,543.90
R 39,543.90
Available for backorder

This ComPacT NSX630HB1 is a complete 4P 4d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all ...

View full details
R 39,543.90 - R 39,543.90
R 39,543.90
R 39,543.90 - R 39,543.90
R 39,543.90
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630HB1, 75kA at 690VAC, MicroLogic 5.3 E trip unit 630A, 3 poles 3d

Schneider Electric
R 42,096.10 - R 42,096.10
R 42,096.10
R 42,096.10 - R 42,096.10
R 42,096.10
Available for backorder

This ComPacT NSX630HB1 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 42,096.10 - R 42,096.10
R 42,096.10
R 42,096.10 - R 42,096.10
R 42,096.10
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630HB1, 75kA at 690VAC, MicroLogic 2.3 M trip unit 500A, 3 poles 3d

Schneider Electric
R 33,340.43 - R 33,340.43
R 33,340.43
R 33,340.43 - R 33,340.43
R 33,340.43
Available for backorder

This ComPacT NSX630HB1 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 33,340.43 - R 33,340.43
R 33,340.43
R 33,340.43 - R 33,340.43
R 33,340.43
Available for backorder

Circuit breaker ComPacT NSX630HB1, 75kA at 690VAC, MicroLogic 2.3 trip unit, 630A, 3 poles 3d

Schneider Electric
R 32,811.49 - R 32,811.49
R 32,811.49
R 32,811.49 - R 32,811.49
R 32,811.49
24 in stock

This ComPacT NSX630HB1 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 32,811.49 - R 32,811.49
R 32,811.49
R 32,811.49 - R 32,811.49
R 32,811.49
Available for backorder

Circuit breaker ComPacT NSX630HB1, 75kA at 690VAC, MicroLogic 1.3 M trip unit 500A, 3 poles 3d

Schneider Electric
R 31,224.73 - R 31,224.73
R 31,224.73
R 31,224.73 - R 31,224.73
R 31,224.73
Available for backorder

This ComPacT NSX630HB1 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 31,224.73 - R 31,224.73
R 31,224.73
R 31,224.73 - R 31,224.73
R 31,224.73
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX600S DC, 100kA at 750 VDC, TM-DC trip unit, 600 A rating, 4 poles

Schneider Electric
R 46,519.30 - R 46,519.30
R 46,519.30
R 46,519.30 - R 46,519.30
R 46,519.30
Available for backorder

ComPacT NSX 600S DC is a complete 4 poles fixed circuit breaker designed to optimize space and breaking capacity. It's an optimal choice for appli...

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R 46,519.30 - R 46,519.30
R 46,519.30
R 46,519.30 - R 46,519.30
R 46,519.30
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX500S DC, 100kA at 750 VDC, TM-DC trip unit, 500 A rating, 4 poles

Schneider Electric
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder

ComPacT NSX 500S DC is a complete 4 poles fixed circuit breaker designed to optimize space and breaking capacity. It's an optimal choice for appli...

View full details
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder
Available for backorder

circuit breaker ComPacT NSX600S DC, 100 kA at 750 VDC, TM-DC trip unit, 600 A rating, 3 poles

Schneider Electric
R 35,784.09 - R 35,784.09
R 35,784.09
R 35,784.09 - R 35,784.09
R 35,784.09
Available for backorder

ComPacT NSX 600S DC is a complete 3 poles fixed circuit breaker designed to optimize space and breaking capacity. It's an optimal choice for appli...

View full details
R 35,784.09 - R 35,784.09
R 35,784.09
R 35,784.09 - R 35,784.09
R 35,784.09
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

This is a 3 poles basic frame for ComPacT NSX630S. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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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 ComPacT NSX630R, 200kA at 415VAC, MicroLogic 2.3 trip unit 630A, 4 poles 4d

Schneider Electric
R 52,539.19 - R 52,539.19
R 52,539.19
R 52,539.19 - R 52,539.19
R 52,539.19
Available for backorder

This ComPacT NSX630R 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 52,539.19 - R 52,539.19
R 52,539.19
R 52,539.19 - R 52,539.19
R 52,539.19
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630R, 200kA at 415VAC, MicroLogic 6.3 E-M trip unit 500A, 3 poles 3d

Schneider Electric
R 52,857.49 - R 52,857.49
R 52,857.49
R 52,857.49 - R 52,857.49
R 52,857.49
Available for backorder

This ComPacT NSX630R is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for motor ...

View full details
R 52,857.49 - R 52,857.49
R 52,857.49
R 52,857.49 - R 52,857.49
R 52,857.49
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630R, 200kA at 415VAC, MicroLogic 2.3 trip unit, 630A, 3 poles 3d

Schneider Electric
R 41,852.36 - R 41,852.36
R 41,852.36
R 41,852.36 - R 41,852.36
R 41,852.36
Available for backorder

This ComPacT NSX630R 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 41,852.36 - R 41,852.36
R 41,852.36
R 41,852.36 - R 41,852.36
R 41,852.36
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630N, 50kA at 415VAC, MicroLogic 2.3 trip unit 630A, 4 poles 4d

Schneider Electric
R 31,983.38 - R 31,983.38
R 31,983.38
R 31,983.38 - R 31,983.38
R 31,983.38
Available for backorder

This ComPacT NSX630N 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 31,983.38 - R 31,983.38
R 31,983.38
R 31,983.38 - R 31,983.38
R 31,983.38
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
24 in stock

This is a 4 poles basic frame for ComPacT NSX630N. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

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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

Circuit breaker ComPacT NSX630N, 50kA at 415VAC, MicroLogic 2.3 M trip unit 500A, 3 poles 3d

Schneider Electric
R 22,295.17 - R 22,295.17
R 22,295.17
R 22,295.17 - R 22,295.17
R 22,295.17
Available for backorder

This ComPacT NSX630N is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for motor ...

View full details
R 22,295.17 - R 22,295.17
R 22,295.17
R 22,295.17 - R 22,295.17
R 22,295.17
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630N, 50kA at 415VAC, MicroLogic 2.3 trip unit 630A, 3 poles 3d

Schneider Electric
R 22,640.90 - R 22,640.90
R 22,640.90
R 22,640.90 - R 22,640.90
R 22,640.90
Available for backorder

This ComPacT NSX630N 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 22,640.90 - R 22,640.90
R 22,640.90
R 22,640.90 - R 22,640.90
R 22,640.90
Available for backorder
Available for backorder

Circuit breaker ComPacT NSX630N, 50kA at 415VAC, MicroLogic 1.3 M trip unit 500A, 3 poles 3d

Schneider Electric
R 19,665.02 - R 19,665.02
R 19,665.02
R 19,665.02 - R 19,665.02
R 19,665.02
Available for backorder

This ComPacT NSX630N is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for motor ...

View full details
R 19,665.02 - R 19,665.02
R 19,665.02
R 19,665.02 - R 19,665.02
R 19,665.02
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
525 in stock

This is a 3 poles basic frame for ComPacT NSX630N. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

View full details
R 15,907.71 - R 15,907.71
R 15,907.71
R 15,907.71 - R 15,907.71
R 15,907.71

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
11 in stock

This is a 3 poles basic frame for ComPacT NSX630L. ComPacT NSX is designed to optimize space and breaking capacity for all standard and specific ap...

View full details
R 21,173.14 - R 21,173.14
R 21,173.14
R 21,173.14 - R 21,173.14
R 21,173.14