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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

plug-in kit, ComPact NSX 400/630 with Vigi add-on module, 4 poles

Schneider Electric
R 11,043.93 - R 11,043.93
R 11,043.93
R 11,043.93 - R 11,043.93
R 11,043.93
Available for backorder

This is a plug-in kit for 4 poles Vigicompact NSX 400/630 fixed circuit breakers (circuit breaker with Vigi add-on module). A plug-in configuration...

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R 11,043.93 - R 11,043.93
R 11,043.93
R 11,043.93 - R 11,043.93
R 11,043.93
Available for backorder
Available for backorder

escutcheon with collar for toggle, drawout ComPact NSX400/630, IP40

Schneider Electric
R 450.90 - R 450.90
R 450.90
R 450.90 - R 450.90
R 450.90
Available for backorder

This is a toggle escutcheon for Compact NSX 400/630. Escutcheons are mounted on the switchboard door. They increase the degree of protection to IP4...

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R 450.90 - R 450.90
R 450.90
R 450.90 - R 450.90
R 450.90
Available for backorder
Available for backorder

long insulated right angle terminal extensions for plug-in base, ComPact NSX 400/630, set of 2 parts

Schneider Electric
R 1,263.69 - R 1,263.69
R 1,263.69
R 1,263.69 - R 1,263.69
R 1,263.69
Available for backorder

These accessories are long insulated right angle terminal extensions for Compact NSX 400/630 plug-in base. These terminal extensions have anti-rota...

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R 1,263.69 - R 1,263.69
R 1,263.69
R 1,263.69 - R 1,263.69
R 1,263.69
Available for backorder
Available for backorder

power connections, ComPact NSX400/630 plug-in kit with Vigi add-on, set of 2 parts

Schneider Electric
R 993.58 - R 993.58
R 993.58
R 993.58 - R 993.58
R 993.58
Available for backorder

It is a power connection for Compact NSX400/630 4P 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 993.58 - R 993.58
R 993.58
R 993.58 - R 993.58
R 993.58
Available for backorder
Available for backorder

plug in base, ComPact NSX 400/630, front/rear connected, 4 poles

Schneider Electric
R 10,878.85 - R 10,878.85
R 10,878.85
R 10,878.85 - R 10,878.85
R 10,878.85
Available for backorder

This is a plug-in base for 4 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 10,878.85 - R 10,878.85
R 10,878.85
R 10,878.85 - R 10,878.85
R 10,878.85
Available for backorder
Available for backorder

spreaders 45 mm to 70 mm pitch, ComPact NSX 400/630, 4 poles, set of 4 parts

Schneider Electric
R 1,984.73 - R 1,984.73
R 1,984.73
R 1,984.73 - R 1,984.73
R 1,984.73
Available for backorder

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 1,984.73 - R 1,984.73
R 1,984.73
R 1,984.73 - R 1,984.73
R 1,984.73
Available for backorder
Available for backorder

right angle terminal extensions, ComPact NSX 400/630, set of 3 parts

Schneider Electric
R 1,469.39 - R 1,469.39
R 1,469.39
R 1,469.39 - R 1,469.39
R 1,469.39
Available for backorder

These accessories are right angle terminal extensions for Compact NSX 400/630 and EasyPact CVS 400/630. These terminal extensions have anti-rotatio...

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R 1,469.39 - R 1,469.39
R 1,469.39
R 1,469.39 - R 1,469.39
R 1,469.39
Available for backorder
Available for backorder

aluminium bare cable connectors, ComPact NSX, EasyPact CVS, for 2 cables 35 mm² to 240 mm², 630 A, set of 3 parts

Schneider Electric
R 1,429.84 - R 1,429.84
R 1,429.84
R 1,429.84 - R 1,429.84
R 1,429.84
Available for backorder

These accessories are aluminium bare cable connectors for Compact NSX 400/630 and EasyPact CVS 400/630. These connectors can receive 2 copper or al...

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R 1,429.84 - R 1,429.84
R 1,429.84
R 1,429.84 - R 1,429.84
R 1,429.84
Available for backorder
Available for backorder

aluminium bare cable connectors, ComPact NSX, EasyPact CVS, for 1 cable 35 mm² to 300 mm², 630 A, set of 3 parts

Schneider Electric
R 1,656.49 - R 1,656.49
R 1,656.49
R 1,656.49 - R 1,656.49
R 1,656.49
Available for backorder

These accessories are aluminium bare cable connectors for Compact NSX 400/630 and EasyPact CVS 400/630. These connectors can receive 1 copper or al...

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R 1,656.49 - R 1,656.49
R 1,656.49
R 1,656.49 - R 1,656.49
R 1,656.49
Available for backorder
Available for backorder

Earth-leakage VigiPacT add-on protection module, ComPacT NSX 400/630, 440 VAC to 550 VAC, 30 mA to 30 A, 3 poles

Schneider Electric
R 22,625.39 - R 22,625.39
R 22,625.39
R 22,625.39 - R 22,625.39
R 22,625.39
Available for backorder

This is a Vigi add-on module for ComPact NSX 400/630 that provides an earth-leakage protection. It is used for 3 poles circuit breakers. The operat...

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R 22,625.39 - R 22,625.39
R 22,625.39
R 22,625.39 - R 22,625.39
R 22,625.39
Available for backorder
Available for backorder

non automatic NA unit, Compact NSX 160NA switch disconnectors, 160 A rating, 4 poles

Schneider Electric
R 1,187.95 - R 1,187.95
R 1,187.95
R 1,187.95 - R 1,187.95
R 1,187.95
Available for backorder

Non Automatic Na Unit Compact Nsx 160Na Switch Disconnectors 160 A Rating 4 PolesNon Automatic Na Unit Compact Nsx 160Na Switch Disconnectors 160 A...

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R 1,187.95 - R 1,187.95
R 1,187.95
R 1,187.95 - R 1,187.95
R 1,187.95
Available for backorder
Available for backorder

non automatic NA unit, Compact NSX 160NA switch disconnectors, 160 A rating, 3 poles

Schneider Electric
R 1,145.05 - R 1,145.05
R 1,145.05
R 1,145.05 - R 1,145.05
R 1,145.05
Available for backorder

Non Automatic Na Unit Compact Nsx 160Na Switch Disconnectors 160 A Rating 3 PolesNon Automatic Na Unit Compact Nsx 160Na Switch Disconnectors 160 A...

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R 1,145.05 - R 1,145.05
R 1,145.05
R 1,145.05 - R 1,145.05
R 1,145.05
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

This is a front panel escutcheon for Compact NSX 100/160/250. Escutcheons are mounted on the switchboard door. They increase the degree of protecti...

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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

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

It is a torque limiting screws for 3 or 4 poles Compact NSX 100/160/250. This accessory may be used to tighten at the right torque compression lug ...

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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 protection module, ComPacT NSX 250, 440 VAC to 550 VAC, 30 mA to 30 A, 3 poles

Schneider Electric
R 15,292.87 - R 15,292.87
R 15,292.87
R 15,292.87 - R 15,292.87
R 15,292.87
Available for backorder

This is a Vigi add-on module for ComPact NSX 250 that provides an earth-leakage protection. It is used for 3 poles circuit breakers. The operationa...

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R 15,292.87 - R 15,292.87
R 15,292.87
R 15,292.87 - R 15,292.87
R 15,292.87
Available for backorder
Available for backorder

non adjustable time delay relay for MN voltage release, 220/240 VAC 50/60Hz

Schneider Electric
R 2,819.13 - R 2,819.13
R 2,819.13
R 2,819.13 - R 2,819.13
R 2,819.13
Available for backorder

This time delay unit is an auxiliary that can be combined with an undervoltage release (MN). It must be associated with a 250VDC MN undervoltage r...

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R 2,819.13 - R 2,819.13
R 2,819.13
R 2,819.13 - R 2,819.13
R 2,819.13
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

This is a MN undervoltage release for Compact NSX, PowerPact Multistandard and EasyPact CVS circuit breakers. Its rated voltage is 30 VDC. It is an...

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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
Available for backorder

MN undervoltage release, ComPacT NSX, rated voltage 48 VAC 50/60 Hz, screwless spring terminal connections

Schneider Electric
R 2,953.12 - R 2,953.12
R 2,953.12
R 2,953.12 - R 2,953.12
R 2,953.12
Available for backorder

This is a MN undervoltage release for Compact NSX, PowerPact Multistandard and EasyPact CVS circuit breakers. Its rated voltage is 48 VAC 50/60 Hz....

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R 2,953.12 - R 2,953.12
R 2,953.12
R 2,953.12 - R 2,953.12
R 2,953.12
Available for backorder
Available for backorder

MX shunt release, ComPacT NSX, rated voltage 380/415 VAC 50/60 Hz, 440/480 VAC 60 Hz, screwless spring terminal connections

Schneider Electric
R 2,046.82 - R 2,046.82
R 2,046.82
R 2,046.82 - R 2,046.82
R 2,046.82
Available for backorder

This is a MX shunt trip release for Compact NSX, PowerPact Multistandard and EasyPact CVS circuit breakers. Its rated voltage is 380 to 415 VAC 50/...

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R 2,046.82 - R 2,046.82
R 2,046.82
R 2,046.82 - R 2,046.82
R 2,046.82
Available for backorder
Available for backorder

MX shunt release, ComPacT NSX, rated voltage 48 VAC 50/60 Hz, screwless spring terminal connections

Schneider Electric
R 2,046.82 - R 2,046.82
R 2,046.82
R 2,046.82 - R 2,046.82
R 2,046.82
Available for backorder

This is a MX shunt trip release for Compact NSX, PowerPact Multistandard and EasyPact CVS circuit breakers. Its rated voltage is 48 VAC 50/60 Hz. I...

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R 2,046.82 - R 2,046.82
R 2,046.82
R 2,046.82 - R 2,046.82
R 2,046.82
Available for backorder
Available for backorder

LV429371 - Toggle padlocking, Compact NSX 100/160/250, fixed device, open or close position

Schneider Electric
R 881.49 - R 881.49
R 881.49
R 881.49 - R 881.49
R 881.49
Available for backorder

This is a padlocking system for fixed Compact NSX 100/160/250 devices. It allows to lock the device in the open position (OFF) or closed position (...

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R 881.49 - R 881.49
R 881.49
R 881.49 - R 881.49
R 881.49
Available for backorder
Available for backorder

mechanical interlocking for rotary handle, ComPacT NSX 100/160/250

Schneider Electric
R 4,426.02 - R 4,426.02
R 4,426.02
R 4,426.02 - R 4,426.02
R 4,426.02
Available for backorder

It is a mechanical interlocking system for two ComPacT NSX 100/160/250 devices with rotary handles. The authorized positions are one device OFF (cl...

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R 4,426.02 - R 4,426.02
R 4,426.02
R 4,426.02 - R 4,426.02
R 4,426.02
Available for backorder
Available for backorder

mechanical interlocking for extended rotary handle, ComPacT NSX 100/160/250

Schneider Electric
R 4,426.02 - R 4,426.02
R 4,426.02
R 4,426.02 - R 4,426.02
R 4,426.02
Available for backorder

Mechanical Interlocking for Extended Rotary Handle Compact Nsx 100 160 250Mechanical Interlocking for Extended Rotary Handle Compact Nsx 100 160 25...

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R 4,426.02 - R 4,426.02
R 4,426.02
R 4,426.02 - R 4,426.02
R 4,426.02
Available for backorder