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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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Available for backorder

Wireless indication auxiliary, ComPacT NSXm, circuit breaker status OF/SD

Schneider Electric
R 3,298.86 - R 3,298.86
R 3,298.86
R 3,298.86 - R 3,298.86
R 3,298.86
Available for backorder

R 3,298.86 - R 3,298.86
R 3,298.86
R 3,298.86 - R 3,298.86
R 3,298.86
Available for backorder
Available for backorder

keylock adapter for motor mechanism locking, ComPact NSX 100/160/250, Ronis keylock included

Schneider Electric
R 1,282.43 - R 1,282.43
R 1,282.43
R 1,282.43 - R 1,282.43
R 1,282.43
Available for backorder

Keylock Adapter for Motor Mechanism Locking Compact Nsx 100 160 250 Ronis Keylock IncludedKeylock Adapter for Motor Mechanism Locking Compact Nsx 1...

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R 1,282.43 - R 1,282.43
R 1,282.43
R 1,282.43 - R 1,282.43
R 1,282.43
Available for backorder

communicating motor mechanism module MTc 100/160, ComPact NSX100/160, 220/240 VAC 50/60 Hz

Schneider Electric
R 14,441.80 - R 14,441.80
R 14,441.80
R 14,441.80 - R 14,441.80
R 14,441.80
10 in stock

Communicating Motor Mechanism Module Mtc 100 160 Compact Nsx100 160 220 240 Vac 50 60 HzCommunicating Motor Mechanism Module Mtc 100 160 Compact Ns...

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R 14,441.80 - R 14,441.80
R 14,441.80
R 14,441.80 - R 14,441.80
R 14,441.80
Available for backorder

standard motor mechanism module MT100/160, ComPact NSX100/160, 110/130 VDC

Schneider Electric
R 11,165.62 - R 11,165.62
R 11,165.62
R 11,165.62 - R 11,165.62
R 11,165.62
Available for backorder

Standard Motor Mechanism Module Mt100 160 Compact Nsx100 160 110 130 VdcStandard Motor Mechanism Module Mt100 160 Compact Nsx100 160 110 130 Vdc is...

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R 11,165.62 - R 11,165.62
R 11,165.62
R 11,165.62 - R 11,165.62
R 11,165.62
Available for backorder
Available for backorder

standard motor mechanism module MT100/160, ComPact NSX100/160, 24/30 VDC

Schneider Electric
R 10,961.21 - R 10,961.21
R 10,961.21
R 10,961.21 - R 10,961.21
R 10,961.21
Available for backorder

Standard Motor Mechanism Module Mt100 160 Compact Nsx100 160 24 30 VdcStandard Motor Mechanism Module Mt100 160 Compact Nsx100 160 24 30 Vdc is bui...

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R 10,961.21 - R 10,961.21
R 10,961.21
R 10,961.21 - R 10,961.21
R 10,961.21
Available for backorder

standard motor mechanism module MT100/160, ComPact NSX100/160, 380/415 VAC 50/60 Hz, 440/480 VAC 60 Hz

Schneider Electric
R 11,165.62 - R 11,165.62
R 11,165.62
R 11,165.62 - R 11,165.62
R 11,165.62
18 in stock

Standard Motor Mechanism Module Mt100 160 Compact Nsx100 160 380 415 Vac 50 60 Hz 440 480 Vac 60 HzStandard Motor Mechanism Module Mt100 160 Compac...

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R 11,165.62 - R 11,165.62
R 11,165.62
R 11,165.62 - R 11,165.62
R 11,165.62

standard motor mechanism module MT100/160, ComPact NSX100/160, 220/240 VAC 50/60 Hz, 208/277 VAC 60 Hz

Schneider Electric
R 9,568.08 - R 9,568.08
R 9,568.08
R 9,568.08 - R 9,568.08
R 9,568.08
289 in stock

Standard Motor Mechanism Module Mt100 160 Compact Nsx100 160 220 240 Vac 50 60 Hz 208 277 Vac 60 HzStandard Motor Mechanism Module Mt100 160 Compac...

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R 9,568.08 - R 9,568.08
R 9,568.08
R 9,568.08 - R 9,568.08
R 9,568.08
Available for backorder

standard motor mechanism module MT100/160, ComPact NSX100/160, 110/130 VAC 50/60 Hz

Schneider Electric
R 9,568.08 - R 9,568.08
R 9,568.08
R 9,568.08 - R 9,568.08
R 9,568.08
Available for backorder

Standard Motor Mechanism Module Mt100 160 Compact Nsx100 160 110 130 Vac 50 60 HzStandard Motor Mechanism Module Mt100 160 Compact Nsx100 160 110 1...

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R 9,568.08 - R 9,568.08
R 9,568.08
R 9,568.08 - R 9,568.08
R 9,568.08
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
6 in stock

Non Adjustable Time Delay Relay for Mn Voltage Release 220 240 Vac 50 60HzNon Adjustable Time Delay Relay for Mn Voltage Release 220 240 Vac 50 60H...

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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

MN undervoltage release, ComPacT NSX, rated voltage 250 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
48 in stock

Mn Undervoltage Release Compact Nsx Rated Voltage 250 Vdc Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Voltage 25...

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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

MN undervoltage release, ComPacT NSX, rated voltage 125 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
Only 2 left!

Mn Undervoltage Release Compact Nsx Rated Voltage 125 Vdc Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Voltage 12...

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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

MN undervoltage release, ComPacT NSX, rated voltage 48 VDC, screwless spring terminal connections

Schneider Electric
R 3,338.26 - R 3,338.26
R 3,338.26
R 3,338.26 - R 3,338.26
R 3,338.26
Available for backorder

Mn Undervoltage Release Compact Nsx Rated Voltage 48 Vdc Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Voltage 48 ...

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R 3,338.26 - R 3,338.26
R 3,338.26
R 3,338.26 - R 3,338.26
R 3,338.26
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

Mn Undervoltage Release Compact Nsx Rated Voltage 30 Vdc Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Voltage 30 ...

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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

MN undervoltage release, ComPacT NSX, rated voltage 24 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
50 in stock

Mn Undervoltage Release Compact Nsx Rated Voltage 24 Vdc Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Voltage 24 ...

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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

MN undervoltage release, ComPacT NSX, rated voltage 525 VAC 50 Hz, 600 VAC 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
26 in stock

Mn Undervoltage Release Compact Nsx Rated Voltage 525 Vac 50 Hz 600 Vac 60 Hz Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact ...

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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

MN undervoltage release, ComPacT NSX, rated voltage 380/415 VAC 50/60 Hz, 440/480 VAC 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
29 in stock

Mn Undervoltage Release Compact Nsx Rated Voltage 380 415 Vac 50 60 Hz 440 480 Vac 60 Hz Screwless Spring Terminal ConnectionsMn Undervoltage Relea...

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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

MN undervoltage release, ComPacT NSX, rated voltage 220/240 VAC 50/60 Hz, 208/277 VAC 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
135 in stock

Mn Undervoltage Release Compact Nsx Rated Voltage 220 240 Vac 50 60 Hz 208 277 Vac 60 Hz Screwless Spring Terminal ConnectionsMn Undervoltage Relea...

View full details
R 2,953.12 - R 2,953.12
R 2,953.12
R 2,953.12 - R 2,953.12
R 2,953.12

MN undervoltage release, ComPacT NSX, rated voltage 110/130 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
77 in stock

Mn Undervoltage Release Compact Nsx Rated Voltage 110 130 Vac 50 60 Hz Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rat...

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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

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

Mn Undervoltage Release Compact Nsx Rated Voltage 48 Vac 50 60 Hz Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Vo...

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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

MN undervoltage release, ComPacT NSX, rated voltage 24 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
804 in stock

Mn Undervoltage Release Compact Nsx Rated Voltage 24 Vac 50 60 Hz Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Vo...

View full details
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

MN undervoltage release, ComPacT NSX, rated voltage 60 VDC, screwless spring terminal connections

Schneider Electric
R 3,338.26 - R 3,338.26
R 3,338.26
R 3,338.26 - R 3,338.26
R 3,338.26
Available for backorder

Mn Undervoltage Release Compact Nsx Rated Voltage 60 Vdc Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Voltage 60 ...

View full details
R 3,338.26 - R 3,338.26
R 3,338.26
R 3,338.26 - R 3,338.26
R 3,338.26
Available for backorder
Available for backorder

MN undervoltage release, ComPacT NSX, rated voltage 12 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

Mn Undervoltage Release Compact Nsx Rated Voltage 12 Vdc Screwless Spring Terminal ConnectionsMn Undervoltage Release Compact Nsx Rated Voltage 12 ...

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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

MX shunt release, ComPacT NSX, rated voltage 250 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 250 Vdc Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Voltage 250 Vdc Screwles...

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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
Available for backorder

MX shunt release, ComPacT NSX, rated voltage 125 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 125 Vdc Screwless Spring Terminal ConnectionsMx Shunt Release Compact Nsx Rated Voltage 125 Vdc Screwles...

View full details
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