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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

pocket battery for MicroLogic, ComPact NSX, ComPact NSXm

Schneider Electric
R 1,898.66 - R 1,898.66
R 1,898.66
R 1,898.66 - R 1,898.66
R 1,898.66
6 in stock

This is an accessory for Micrologic trip unit for Compact NSX and PowerPact multistandard devices. It is an external battery used for the local ins...

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R 1,898.66 - R 1,898.66
R 1,898.66
R 1,898.66 - R 1,898.66
R 1,898.66

communication terminal block, NSX cord, ComPact NSX, 3 m length

Schneider Electric
R 1,357.28 - R 1,357.28
R 1,357.28
R 1,357.28 - R 1,357.28
R 1,357.28
1236 in stock

NSX cord is an ULP wiring accessory that connects Compact NSX devices to ULP devices. ULP devices are FDM121 display, IFM and IFE communication mod...

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R 1,357.28 - R 1,357.28
R 1,357.28
R 1,357.28 - R 1,357.28
R 1,357.28

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
11 in stock

This is a standard motor mechanism for Compact NSX 400/630 and PowerPact Multistandard L frame devices that allows automatic device spring-charging...

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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

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
26 in stock

This is a communicating motor mechanism for Compact NSX 100/160 and PowerPact Multistandard H frame devices that allows automatic device spring-cha...

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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

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
106 in stock

This is a padlocking system for fixed Compact NSX 400/630 devices. It allows to lock the device in the open position (OFF) or closed position (ON)....

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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

keylock adapter for rotary handle locking, ComPact NSX 400/630, keylock not included

Schneider Electric
R 739.51 - R 739.51
R 739.51
R 739.51 - R 739.51
R 739.51
74 in stock

It's a keylock adapter for rotary handle padlocking system for Compact NSX 400/630, PowerPact L frames and EasyPact CVS 400/630. This adapter has t...

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R 739.51 - R 739.51
R 739.51
R 739.51 - R 739.51
R 739.51

extended rotary handle, ComPacT NSX 400/630, black handle, shaft length 209 to 600 mm, IP55

Schneider Electric
R 2,783.25 - R 2,783.25
R 2,783.25
R 2,783.25 - R 2,783.25
R 2,783.25
443 in stock

It is an extended rotary handle for ComPacT NSX 400/630, PowerPact Multistandard L frames and EasyPact CVS 400/630 devices. It is suitable for isol...

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R 2,783.25 - R 2,783.25
R 2,783.25
R 2,783.25 - R 2,783.25
R 2,783.25

direct rotary handle, ComPacT NSX 400/630, black handle, IP40

Schneider Electric
R 2,561.72 - R 2,561.72
R 2,561.72
R 2,561.72 - R 2,561.72
R 2,561.72
179 in stock

It is a direct rotary handle for ComPacT NSX 400/630, PowerPact Multistandard L frames and EasyPact CVS 400/630 devices. It is suitable for isolati...

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R 2,561.72 - R 2,561.72
R 2,561.72
R 2,561.72 - R 2,561.72
R 2,561.72

long terminal shield for spreaders, ComPact NSX400/630, pitch 52.5 mm, IP40, 3 poles

Schneider Electric
R 1,282.30 - R 1,282.30
R 1,282.30
R 1,282.30 - R 1,282.30
R 1,282.30
28 in stock

This is an insulation accessory for 3 poles Compact NSX 400/630 or EasyPact CVS 400/630. This long terminal shield protects against direct contact ...

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R 1,282.30 - R 1,282.30
R 1,282.30
R 1,282.30 - R 1,282.30
R 1,282.30

long terminal shield, ComPact NSX400/630, pitch 45 mm, IP40, 3 poles

Schneider Electric
R 780.33 - R 780.33
R 780.33
R 780.33 - R 780.33
R 780.33
404 in stock

This is an insulation accessory for 3 poles Compact NSX 400/630 or EasyPact CVS 400/630. This long terminal shield protects against direct contact ...

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R 780.33 - R 780.33
R 780.33
R 780.33 - R 780.33
R 780.33

short terminal shield, ComPact NSX400/630, pitch 45 mm, IP40, 3 poles

Schneider Electric
R 590.22 - R 590.22
R 590.22
R 590.22 - R 590.22
R 590.22
632 in stock

This is an insulation accessory for 3 poles Compact NSX 400/630 or EasyPact CVS 400/630. This short terminal shield protects against direct contact...

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R 590.22 - R 590.22
R 590.22
R 590.22 - R 590.22
R 590.22

connection adapter for plug in base, ComPact NSX 400/630, 3 poles

Schneider Electric
R 234.27 - R 234.27
R 234.27
R 234.27 - R 234.27
R 234.27
330 in stock

This is a connection adapter for 3 poles plug-in base for Compact NSX 400/630. It allows to connect the power circuit to the power terminals of Com...

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R 234.27 - R 234.27
R 234.27
R 234.27 - R 234.27
R 234.27

interphase barriers, ComPact NSX 400/630, set of 6 parts

Schneider Electric
R 706.28 - R 706.28
R 706.28
R 706.28 - R 706.28
R 706.28
768 in stock

This is an insulation accessory for Compact NSX 400/630 or EasyPact CVS 400/630. These interphase barriers reinforce insulation level at the power ...

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R 706.28 - R 706.28
R 706.28
R 706.28 - R 706.28
R 706.28

chassis side plates for breaker, ComPact NSX 400/630, withdrawable, 3/4 poles

Schneider Electric
R 920.22 - R 920.22
R 920.22
R 920.22 - R 920.22
R 920.22
25 in stock

These are chassis side plates for withdrawable 3 or 4 poles Compact NSX 400/630 circuit breakers. These side plates allow the installation on a cha...

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R 920.22 - R 920.22
R 920.22
R 920.22 - R 920.22
R 920.22

chassis side plates for base, ComPact NSX 400/630, withdrawable, 3/4 poles

Schneider Electric
R 2,724.75 - R 2,724.75
R 2,724.75
R 2,724.75 - R 2,724.75
R 2,724.75
15 in stock

These are chassis side plates for withdrawable 3 or 4 poles Compact NSX 400/630 circuit breakers. These side plates allow the installation on a cha...

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R 2,724.75 - R 2,724.75
R 2,724.75
R 2,724.75 - R 2,724.75
R 2,724.75

automatic auxiliary connector support, ComPact NSX 400/630, 3 moving connectors, for circuit breaker

Schneider Electric
R 328.72 - R 328.72
R 328.72
R 328.72 - R 328.72
R 328.72
175 in stock

This is support for moving part of the automatic connector for Compact NSX 400/630 auxiliaries connection. It is adapted for plug-in base or withdr...

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R 328.72 - R 328.72
R 328.72
R 328.72 - R 328.72
R 328.72

automatic auxiliary connector, moving part, ComPact NSX 400/630, for circuit breaker, 1 to 9 wires

Schneider Electric
R 484.02 - R 484.02
R 484.02
R 484.02 - R 484.02
R 484.02
923 in stock

This is the moving part of an automatic connector for Compact NSX 400/630 auxiliaries connection. It is adapted for plug-in base or withdrawable ci...

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R 484.02 - R 484.02
R 484.02
R 484.02 - R 484.02
R 484.02

safety trip interlock, ComPact NSX 400/630 plug-in kit

Schneider Electric
R 486.78 - R 486.78
R 486.78
R 486.78 - R 486.78
R 486.78
653 in stock

This is a safety trip interlock device for 3 or 4 poles Compact NSX 400/630. It is part of the plug-in kit for Compact NSX circuit breakers. This a...

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R 486.78 - R 486.78
R 486.78
R 486.78 - R 486.78
R 486.78

power connections, ComPact NSX400/630 plug-in kit, set of 2 parts

Schneider Electric
R 888.33 - R 888.33
R 888.33
R 888.33 - R 888.33
R 888.33
983 in stock

It is a power connection for Compact NSX400/630 3P plug-in kit. A plug-in configuration is made by adding a plug-in kit to a fixed device. This pow...

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R 888.33 - R 888.33
R 888.33
R 888.33 - R 888.33
R 888.33

plug in base, ComPact NSX 400/630, front/rear connected, 3 poles

Schneider Electric
R 8,814.72 - R 8,814.72
R 8,814.72
R 8,814.72 - R 8,814.72
R 8,814.72
379 in stock

This is a plug-in base for 3 poles Compact NSX 400/630 circuit breakers. The plug-in base is part of a complete plug-in kit. A plug-in configuratio...

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R 8,814.72 - R 8,814.72
R 8,814.72
R 8,814.72 - R 8,814.72
R 8,814.72

spreaders 45 mm to 70 mm pitch, ComPact NSX 400/630, 3 poles, set of 3 parts

Schneider Electric
R 1,417.67 - R 1,417.67
R 1,417.67
R 1,417.67 - R 1,417.67
R 1,417.67
120 in stock

These accessories are spreaders for 3 poles Compact NSX 400/630 and EasyPact CVS 400/630. They are screwed to the circuit-breaker terminals to incr...

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R 1,417.67 - R 1,417.67
R 1,417.67
R 1,417.67 - R 1,417.67
R 1,417.67

LV432491 - Connection accessories, Compact NSX 400/630, EasyPact CVS 400/630, spreaders, 52.5 mm pitch, flat connection, 4 poles

Schneider Electric
R 1,403.39 - R 1,403.39
R 1,403.39
R 1,403.39 - R 1,403.39
R 1,403.39
Only 2 left!

These accessories are spreaders for 3 poles Compact NSX 400/630 and EasyPact CVS 400/630. They are screwed to the circuit-breaker terminals to incr...

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R 1,403.39 - R 1,403.39
R 1,403.39
R 1,403.39 - R 1,403.39
R 1,403.39

spreaders 45 mm to 52.5 mm pitch, ComPact NSX 400/630, 3 poles, set of 3 parts

Schneider Electric
R 1,002.42 - R 1,002.42
R 1,002.42
R 1,002.42 - R 1,002.42
R 1,002.42
99 in stock

These accessories are spreaders for 3 poles Compact NSX 400/630 and EasyPact CVS 400/630. They are screwed to the circuit-breaker terminals to incr...

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R 1,002.42 - R 1,002.42
R 1,002.42
R 1,002.42 - R 1,002.42
R 1,002.42

long rear connections, ComPact NSX, EasyPact CVS, 630 A, set of 2 parts

Schneider Electric
R 2,544.80 - R 2,544.80
R 2,544.80
R 2,544.80 - R 2,544.80
R 2,544.80
284 in stock

These accessories are short rear connections for Compact NSX 400/630 and EasyPact CVS 400/630. The rear connection is simply fitted to the device c...

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R 2,544.80 - R 2,544.80
R 2,544.80
R 2,544.80 - R 2,544.80
R 2,544.80