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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

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

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

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

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

extended rotary handle, ComPacT NSX 100/160/250, black handle, shaft length 185 to 600 mm, IP55

Schneider Electric
R 2,509.63 - R 2,509.63
R 2,509.63
R 2,509.63 - R 2,509.63
R 2,509.63
1833 in stock

Extended Rotary Handle Compact Nsx 100 160 250 Black Handle Shaft Length 185 To 600 Mm Ip55 1Extended Rotary Handle Compact Nsx 100 160 250 Black H...

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R 2,509.63 - R 2,509.63
R 2,509.63
R 2,509.63 - R 2,509.63
R 2,509.63

direct rotary handle, ComPacT NSX 100/160/250, black handle, IP40

Schneider Electric
R 2,271.53 - R 2,271.53
R 2,271.53
R 2,271.53 - R 2,271.53
R 2,271.53
83 in stock

Direct Rotary Handle Compact Nsx 100 160 250 Black Handle Ip40 1Direct Rotary Handle Compact Nsx 100 160 250 Black Handle Ip40 1 is built for safe,...

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R 2,271.53 - R 2,271.53
R 2,271.53
R 2,271.53 - R 2,271.53
R 2,271.53

interphase barriers, ComPact NSX 100/160/250, set of 6 parts

Schneider Electric
R 267.27 - R 267.27
R 267.27
R 267.27 - R 267.27
R 267.27
3254 in stock

Interphase Barriers Compact Nsx 100 160 250 Set Of 6 PartsInterphase Barriers Compact Nsx 100 160 250 Set Of 6 Parts is built for safe, reliable us...

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R 267.27 - R 267.27
R 267.27
R 267.27 - R 267.27
R 267.27

connection adapter for plug in base, ComPact NSX 100/160/250, 4 poles

Schneider Electric
R 483.65 - R 483.65
R 483.65
R 483.65 - R 483.65
R 483.65
89 in stock

Connection Adapter for Plug In Base Compact Nsx 100 160 250 4 PolesConnection Adapter for Plug In Base Compact Nsx 100 160 250 4 Poles is built for...

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R 483.65 - R 483.65
R 483.65
R 483.65 - R 483.65
R 483.65

connection adapter for plug in base, ComPact NSX 100/160/250, 3 poles

Schneider Electric
R 349.81 - R 349.81
R 349.81
R 349.81 - R 349.81
R 349.81
51 in stock

Connection Adapter for Plug In Base Compact Nsx 100 160 250 3 PolesConnection Adapter for Plug In Base Compact Nsx 100 160 250 3 Poles is built for...

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R 349.81 - R 349.81
R 349.81
R 349.81 - R 349.81
R 349.81

long insulated right angle terminal extensions for plug-in base, ComPact NSX 100/160/250, set of 2 parts

Schneider Electric
R 861.20 - R 861.20
R 861.20
R 861.20 - R 861.20
R 861.20
7 in stock

Long Insulated Right Angle Terminal Extensions for Plug In Base Compact Nsx 100 160 250 Set Of 2 PartsLong Insulated Right Angle Terminal Extension...

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R 861.20 - R 861.20
R 861.20
R 861.20 - R 861.20
R 861.20

automatic auxiliary connector support, ComPact NSX 100/160/250, 2 moving connectors, for circuit breaker

Schneider Electric
R 246.51 - R 246.51
R 246.51
R 246.51 - R 246.51
R 246.51
326 in stock

Automatic Auxiliary Connector Support Compact Nsx 100 160 250 2 Moving Connectors for Circuit BreakerAutomatic Auxiliary Connector Support Compact ...

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R 246.51 - R 246.51
R 246.51
R 246.51 - R 246.51
R 246.51

automatic auxiliary connector, moving part, ComPact NSX 100/160/250, for circuit breaker, 1 to 9 wires

Schneider Electric
R 482.12 - R 482.12
R 482.12
R 482.12 - R 482.12
R 482.12
285 in stock

Automatic Auxiliary Connector Moving Part Compact Nsx 100 160 250 for Circuit Breaker 1 To 9 WiresAutomatic Auxiliary Connector Moving Part Compact...

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R 482.12 - R 482.12
R 482.12
R 482.12 - R 482.12
R 482.12

automatic auxiliary connector, fixed part, ComPact NSX 100 to NSX630, for plug-in base, 1 to 9 wires

Schneider Electric
R 753.57 - R 753.57
R 753.57
R 753.57 - R 753.57
R 753.57
523 in stock

Automatic Auxiliary Connector Fixed Part Compact Nsx 100 To Nsx630 for Plug In Base 1 To 9 WiresAutomatic Auxiliary Connector Fixed Part Compact Ns...

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R 753.57 - R 753.57
R 753.57
R 753.57 - R 753.57
R 753.57

manual auxiliary connector, fixed and moving part, ComPact NSX 100 to NSX630, withdrawable circuit breakers, 1 to 9 wires

Schneider Electric
R 1,053.10 - R 1,053.10
R 1,053.10
R 1,053.10 - R 1,053.10
R 1,053.10
96 in stock

Manual Auxiliary Connector Fixed and Moving Part Compact Nsx 100 To Nsx630 Withdrawable Circuit Breakers 1 To 9 WiresManual Auxiliary Connector Fix...

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R 1,053.10 - R 1,053.10
R 1,053.10
R 1,053.10 - R 1,053.10
R 1,053.10

safety trip interlock for ComPact NSX 100/160/250 plug-in kit

Schneider Electric
R 351.06 - R 351.06
R 351.06
R 351.06 - R 351.06
R 351.06
118 in stock

Safety Trip Interlock for Compact Nsx 100 160 250 Plug In KitSafety Trip Interlock for Compact Nsx 100 160 250 Plug In Kit is built for safe, relia...

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R 351.06 - R 351.06
R 351.06
R 351.06 - R 351.06
R 351.06

power connections, ComPact NSX100/160/250 plug-in kit, set of 2 parts

Schneider Electric
R 425.94 - R 425.94
R 425.94
R 425.94 - R 425.94
R 425.94
548 in stock

Power Connections Compact Nsx100 160 250 Plug In Kit Set Of 2 PartsPower Connections Compact Nsx100 160 250 Plug In Kit Set Of 2 Parts is built for...

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R 425.94 - R 425.94
R 425.94
R 425.94 - R 425.94
R 425.94

plug in base, ComPact NSX 100/160/250, front/rear connected, 4 poles

Schneider Electric
R 4,382.31 - R 4,382.31
R 4,382.31
R 4,382.31 - R 4,382.31
R 4,382.31
17 in stock

Plug In Base Compact Nsx 100 160 250 Front Rear Connected 4 PolesPlug In Base Compact Nsx 100 160 250 Front Rear Connected 4 Poles is built for saf...

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R 4,382.31 - R 4,382.31
R 4,382.31
R 4,382.31 - R 4,382.31
R 4,382.31

plug in base, ComPact NSX 100/160/250, front/rear connected, 3 poles

Schneider Electric
R 3,071.85 - R 3,071.85
R 3,071.85
R 3,071.85 - R 3,071.85
R 3,071.85
226 in stock

Plug In Base Compact Nsx 100 160 250 Front Rear Connected 3 PolesPlug In Base Compact Nsx 100 160 250 Front Rear Connected 3 Poles is built for saf...

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R 3,071.85 - R 3,071.85
R 3,071.85
R 3,071.85 - R 3,071.85
R 3,071.85

steel bare cable connectors, ComPact NSX, EasyPact CVS, for 1 cable 1.5 to 95 mm², 160 A, set of 4 parts

Schneider Electric
R 449.33 - R 449.33
R 449.33
R 449.33 - R 449.33
R 449.33
451 in stock

Steel Bare Cable Connectors Compact Nsx Easypact Cvs for 1 Cable 1 5 To 95 Mm 160 A Set Of 4 PartsSteel Bare Cable Connectors Compact Nsx Easypact ...

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R 449.33 - R 449.33
R 449.33
R 449.33 - R 449.33
R 449.33

steel bare cable connectors, ComPact NSX, EasyPact CVS, for 1 cable 1.5 to 95 mm², 160 A, set of 3 parts

Schneider Electric
R 400.98 - R 400.98
R 400.98
R 400.98 - R 400.98
R 400.98
73 in stock

Steel Bare Cable Connectors Compact Nsx Easypact Cvs for 1 Cable 1 5 To 95 Mm 160 A Set Of 3 PartsSteel Bare Cable Connectors Compact Nsx Easypact ...

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R 400.98 - R 400.98
R 400.98
R 400.98 - R 400.98
R 400.98

long rear connections, ComPact NSX, EasyPact CVS, 250 A, set of 2 parts

Schneider Electric
R 1,115.50 - R 1,115.50
R 1,115.50
R 1,115.50 - R 1,115.50
R 1,115.50
1365 in stock

Long Rear Connections Compact Nsx Easypact Cvs 250 A Set Of 2 PartsLong Rear Connections Compact Nsx Easypact Cvs 250 A Set Of 2 Parts is built for...

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R 1,115.50 - R 1,115.50
R 1,115.50
R 1,115.50 - R 1,115.50
R 1,115.50

short rear connections, ComPact NSX, EasyPact CVS, 250 A, set of 2 parts

Schneider Electric
R 881.49 - R 881.49
R 881.49
R 881.49 - R 881.49
R 881.49
2073 in stock

Short Rear Connections Compact Nsx Easypact Cvs 250 A Set Of 2 PartsShort Rear Connections Compact Nsx Easypact Cvs 250 A Set Of 2 Parts is built f...

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R 881.49 - R 881.49
R 881.49
R 881.49 - R 881.49
R 881.49

double L terminal extensions, ComPact NSX 100/160/250, set of 3 parts

Schneider Electric
R 361.96 - R 361.96
R 361.96
R 361.96 - R 361.96
R 361.96
Only 2 left!

Double L Terminal Extensions Compact Nsx 100 160 250 Set Of 3 PartsDouble L Terminal Extensions Compact Nsx 100 160 250 Set Of 3 Parts is built for...

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R 361.96 - R 361.96
R 361.96
R 361.96 - R 361.96
R 361.96

trip unit MicroLogic 5.2 E for ComPact NSX 100/160/250 circuit breakers, electronic, rating 100A, 4 poles 4d

Schneider Electric
R 4,303.20 - R 4,303.20
R 4,303.20
R 4,303.20 - R 4,303.20
R 4,303.20
17 in stock

Trip Unit Micrologic 5 2 E for Compact Nsx 100 160 250 Circuit Breakers Electronic Rating 100A 4 Poles 4D 1Trip Unit Micrologic 5 2 E for Compact N...

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R 4,303.20 - R 4,303.20
R 4,303.20
R 4,303.20 - R 4,303.20
R 4,303.20