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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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MX shunt release, ComPacT NSX, rated voltage 48 VDC, screwless spring terminal connections

Schneider Electric
R 2,365.06 - R 2,365.06
R 2,365.06
R 2,365.06 - R 2,365.06
R 2,365.06
18 in stock

Mx Shunt Release Compact Nsx Rated Voltage 48 Vdc Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Voltage 48 Vdc Screwless ...

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R 2,365.06 - R 2,365.06
R 2,365.06
R 2,365.06 - R 2,365.06
R 2,365.06
Available for backorder

MX shunt release, ComPacT NSX, rated voltage 30 VDC, screwless spring terminal connections

Schneider Electric
R 2,365.06 - R 2,365.06
R 2,365.06
R 2,365.06 - R 2,365.06
R 2,365.06
Available for backorder

Mx Shunt Release Compact Nsx Rated Voltage 30 Vdc Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Voltage 30 Vdc Screwless ...

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R 2,365.06 - R 2,365.06
R 2,365.06
R 2,365.06 - R 2,365.06
R 2,365.06
Available for backorder

MX shunt release, ComPacT NSX, rated voltage 24 VDC, screwless spring terminal connections

Schneider Electric
R 2,365.06 - R 2,365.06
R 2,365.06
R 2,365.06 - R 2,365.06
R 2,365.06
240 in stock

Mx Shunt Release Compact Nsx Rated Voltage 24 Vdc Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Voltage 24 Vdc Screwless ...

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R 2,365.06 - R 2,365.06
R 2,365.06
R 2,365.06 - R 2,365.06
R 2,365.06

MX shunt release, ComPacT NSX, rated voltage 525 VAC 50 Hz, 600 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
158 in stock

Mx Shunt Release Compact Nsx Rated Voltage 525 Vac 50 Hz 600 Vac 60 Hz Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Volt...

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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

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
60 in stock

Mx Shunt Release Compact Nsx Rated Voltage 380 415 Vac 50 60 Hz 440 480 Vac 60 Hz Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx...

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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

MX shunt release, ComPacT NSX, rated voltage 220/240 VAC 50/60 Hz, 208/277 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
725 in stock

Mx Shunt Release Compact Nsx Rated Voltage 220 240 Vac 50 60 Hz 208 277 Vac 60 Hz Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx...

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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

MX shunt release, ComPacT NSX, rated voltage 110/130 VAC 50/60 Hz, screwless spring terminal connections

Schneider Electric
R 2,046.83 - R 2,046.83
R 2,046.83
R 2,046.83 - R 2,046.83
R 2,046.83
520 in stock

Mx Shunt Release Compact Nsx Rated Voltage 110 130 Vac 50 60 Hz Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Voltage 110...

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R 2,046.83 - R 2,046.83
R 2,046.83
R 2,046.83 - R 2,046.83
R 2,046.83
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

Mx Shunt Release Compact Nsx Rated Voltage 48 Vac 50 60 Hz Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Voltage 48 Vac 5...

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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

MX shunt release, ComPacT NSX, rated voltage 24 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
936 in stock

Mx Shunt Release Compact Nsx Rated Voltage 24 Vac 50 60 Hz Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Voltage 24 Vac 5...

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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

MX shunt release, ComPacT NSX, rated voltage 12 VDC, screwless spring terminal connections

Schneider Electric
R 2,365.04 - R 2,365.04
R 2,365.04
R 2,365.04 - R 2,365.04
R 2,365.04
Available for backorder

Mx Shunt Release Compact Nsx Rated Voltage 12 Vdc Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Voltage 12 Vdc Screwless ...

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R 2,365.04 - R 2,365.04
R 2,365.04
R 2,365.04 - R 2,365.04
R 2,365.04
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

Lv429371 Toggle Padlocking Compact Nsx 100 160 250 Fixed Device Open Or Close PositionLv429371 Toggle Padlocking Compact Nsx 100 160 250 Fixed Devi...

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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

Mechanical Interlocking for Rotary Handle Compact Nsx 100 160 250Mechanical Interlocking for Rotary Handle Compact Nsx 100 160 250 is built for saf...

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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
Available for backorder

mechanical interlocking with rotary handles, ComPact NSX 100/160/250, for 2 fixed or plug-in devices

Schneider Electric
R 4,426.01 - R 4,426.01
R 4,426.01
R 4,426.01 - R 4,426.01
R 4,426.01
Available for backorder

Mechanical Interlocking With Rotary Handles Compact Nsx 100 160 250 for 2 Fixed Or Plug In DevicesMechanical Interlocking With Rotary Handles Compa...

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R 4,426.01 - R 4,426.01
R 4,426.01
R 4,426.01 - R 4,426.01
R 4,426.01
Available for backorder
Available for backorder

mechanical interlocking for toggle, ComPacT NSX 100/160/250

Schneider Electric
R 5,546.16 - R 5,546.16
R 5,546.16
R 5,546.16 - R 5,546.16
R 5,546.16
Available for backorder

Mechanical Interlocking for Toggle Compact Nsx 100 160 250Mechanical Interlocking for Toggle Compact Nsx 100 160 250 is built for safe, reliable us...

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R 5,546.16 - R 5,546.16
R 5,546.16
R 5,546.16 - R 5,546.16
R 5,546.16
Available for backorder
Available for backorder

mechanical interlocking with toggles, ComPact NSX 100/160/250, for 2 fixed or plug-in devices

Schneider Electric
R 5,546.16 - R 5,546.16
R 5,546.16
R 5,546.16 - R 5,546.16
R 5,546.16
Available for backorder

Mechanical Interlocking With Toggles Compact Nsx 100 160 250 for 2 Fixed Or Plug In DevicesMechanical Interlocking With Toggles Compact Nsx 100 160...

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R 5,546.16 - R 5,546.16
R 5,546.16
R 5,546.16 - R 5,546.16
R 5,546.16
Available for backorder
Available for backorder

standard early make contact, ComPact NSX100 to NSX630, rotary handle position CAF, 2 changeover contact types

Schneider Electric
R 1,976.66 - R 1,976.66
R 1,976.66
R 1,976.66 - R 1,976.66
R 1,976.66
Available for backorder

Standard Early Make Contact Compact Nsx100 To Nsx630 Rotary Handle Position Caf 2 Changeover Contact TypesStandard Early Make Contact Compact Nsx10...

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R 1,976.66 - R 1,976.66
R 1,976.66
R 1,976.66 - R 1,976.66
R 1,976.66
Available for backorder
Available for backorder

standard early break contact, ComPact NSX100 to NSX250, rotary handle position CAO, 1 changeover contact type

Schneider Electric
R 1,883.07 - R 1,883.07
R 1,883.07
R 1,883.07 - R 1,883.07
R 1,883.07
Available for backorder

Standard Early Break Contact Compact Nsx100 To Nsx250 Rotary Handle Position Cao 1 Changeover Contact TypeStandard Early Break Contact Compact Nsx1...

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R 1,883.07 - R 1,883.07
R 1,883.07
R 1,883.07 - R 1,883.07
R 1,883.07
Available for backorder

keylock adapter for rotary handle locking, ComPact NSX 100/160/250, keylock not included

Schneider Electric
R 647.46 - R 647.46
R 647.46
R 647.46 - R 647.46
R 647.46
44 in stock

Keylock Adapter for Rotary Handle Locking Compact Nsx 100 160 250 Keylock Not IncludedKeylock Adapter for Rotary Handle Locking Compact Nsx 100 160...

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R 647.46 - R 647.46
R 647.46
R 647.46 - R 647.46
R 647.46
Available for backorder

extended rotary handle, ComPacT NSX 100/160/250, black handle, telescopic shaft 248 to 600 mm for withdrawable device, IP55

Schneider Electric
R 2,720.84 - R 2,720.84
R 2,720.84
R 2,720.84 - R 2,720.84
R 2,720.84
Available for backorder

Extended Rotary Handle Compact Nsx 100 160 250 Black Handle Telescopic Shaft 248 To 600 Mm for Withdrawable Device Ip55 1Extended Rotary Handle Com...

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R 2,720.84 - R 2,720.84
R 2,720.84
R 2,720.84 - R 2,720.84
R 2,720.84
Available for backorder
Available for backorder

extended rotary handle, ComPact NSX 100/160/250, black handle, telescopic shaft 248 to 600 mm for withdrawable device, IP55

Schneider Electric
R 2,720.84 - R 2,720.84
R 2,720.84
R 2,720.84 - R 2,720.84
R 2,720.84
Available for backorder

Extended Rotary Handle Compact Nsx 100 160 250 Black Handle Telescopic Shaft 248 To 600 Mm for Withdrawable Device Ip55Extended Rotary Handle Compa...

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R 2,720.84 - R 2,720.84
R 2,720.84
R 2,720.84 - R 2,720.84
R 2,720.84
Available for backorder
Available for backorder

conversion accessory for direct rotary handle, ComPacT NSX100 to NSX250, CNOMO machine tool control, IP54

Schneider Electric
R 1,661.18 - R 1,661.18
R 1,661.18
R 1,661.18 - R 1,661.18
R 1,661.18
Available for backorder

Conversion Accessory for Direct Rotary Handle Compact Nsx100 To Nsx250 Cnomo Machine Tool Control Ip54Conversion Accessory for Direct Rotary Handle...

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R 1,661.18 - R 1,661.18
R 1,661.18
R 1,661.18 - R 1,661.18
R 1,661.18
Available for backorder
Available for backorder

conversion accessory for direct rotary handle, ComPacT NSX100 to NSX250, MCC switchboard control, IP43

Schneider Electric
R 1,485.75 - R 1,485.75
R 1,485.75
R 1,485.75 - R 1,485.75
R 1,485.75
Available for backorder

Conversion Accessory for Direct Rotary Handle Compact Nsx100 To Nsx250 Mcc Switchboard Control Ip43 1Conversion Accessory for Direct Rotary Handle ...

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R 1,485.75 - R 1,485.75
R 1,485.75
R 1,485.75 - R 1,485.75
R 1,485.75
Available for backorder

extended rotary handle, ComPacT NSX 100/160/250, red handle on yellow front, shaft length 185 to 600 mm, IP55

Schneider Electric
R 2,714.58 - R 2,714.58
R 2,714.58
R 2,714.58 - R 2,714.58
R 2,714.58
19 in stock

Extended Rotary Handle Compact Nsx 100 160 250 Red Handle On Yellow Front Shaft Length 185 To 600 Mm Ip55 1Extended Rotary Handle Compact Nsx 100 1...

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R 2,714.58 - R 2,714.58
R 2,714.58
R 2,714.58 - R 2,714.58
R 2,714.58