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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
Available for backorder

conversion accessory for direct rotary handle, ComPacT NSX400 to NSX630, CNOMO machine tool control, IP54

Schneider Electric
R 1,996.25 - R 1,996.25
R 1,996.25
R 1,996.25 - R 1,996.25
R 1,996.25
Available for backorder

Conversion Accessory for Direct Rotary Handle Compact Nsx400 To Nsx630 Cnomo Machine Tool Control Ip54Conversion Accessory for Direct Rotary Handle...

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R 1,996.25 - R 1,996.25
R 1,996.25
R 1,996.25 - R 1,996.25
R 1,996.25
Available for backorder
Available for backorder

extended rotary handle, ComPacT NSX 400/630, red handle on yellow front, shaft length 209 to 600 mm, IP55

Schneider Electric
R 3,755.18 - R 3,755.18
R 3,755.18
R 3,755.18 - R 3,755.18
R 3,755.18
Available for backorder

Extended Rotary Handle Compact Nsx 400 630 Red Handle On Yellow Front Shaft Length 209 To 600 Mm Ip55 1Extended Rotary Handle Compact Nsx 400 630 R...

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R 3,755.18 - R 3,755.18
R 3,755.18
R 3,755.18 - R 3,755.18
R 3,755.18
Available for backorder
Available for backorder

extended rotary handle, ComPact NSX 400/630, red handle on yellow front, shaft length 209 to 600 mm, IP55

Schneider Electric
R 3,755.18 - R 3,755.18
R 3,755.18
R 3,755.18 - R 3,755.18
R 3,755.18
Available for backorder

Extended Rotary Handle Compact Nsx 400 630 Red Handle On Yellow Front Shaft Length 209 To 600 Mm Ip55Extended Rotary Handle Compact Nsx 400 630 Red...

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R 3,755.18 - R 3,755.18
R 3,755.18
R 3,755.18 - R 3,755.18
R 3,755.18
Available for backorder
Available for backorder

direct rotary handle, ComPacT NSX 400/630, red handle on yellow front, IP40

Schneider Electric
R 2,026.59 - R 2,026.59
R 2,026.59
R 2,026.59 - R 2,026.59
R 2,026.59
Available for backorder

Direct Rotary Handle Compact Nsx 400 630 Red Handle On Yellow Front Ip40 1Direct Rotary Handle Compact Nsx 400 630 Red Handle On Yellow Front Ip40 ...

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R 2,026.59 - R 2,026.59
R 2,026.59
R 2,026.59 - R 2,026.59
R 2,026.59
Available for backorder
Available for backorder

direct rotary handle, ComPact NSX 400/630, red handle on yellow front, IP40

Schneider Electric
R 2,026.58 - R 2,026.58
R 2,026.58
R 2,026.58 - R 2,026.58
R 2,026.58
Available for backorder

Direct Rotary Handle Compact Nsx 400 630 Red Handle On Yellow Front Ip40Direct Rotary Handle Compact Nsx 400 630 Red Handle On Yellow Front Ip40 is...

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R 2,026.58 - R 2,026.58
R 2,026.58
R 2,026.58 - R 2,026.58
R 2,026.58
Available for backorder
Available for backorder

LV432596 - long terminal shield for spreaders, Compact NSX, EasyPact CVS, 4 poles, pitch 52.5 mm

Schneider Electric
R 1,795.21 - R 1,795.21
R 1,795.21
R 1,795.21 - R 1,795.21
R 1,795.21
Available for backorder

Lv432596 Long Terminal Shield for Spreaders Compact Nsx Easypact Cvs 4 Poles Pitch 52 5 MmLv432596 Long Terminal Shield for Spreaders Compact Nsx E...

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R 1,795.21 - R 1,795.21
R 1,795.21
R 1,795.21 - R 1,795.21
R 1,795.21
Available for backorder
Available for backorder

45° terminal extensions, ComPact NSX 400/630, set of 3 parts

Schneider Electric
R 959.70 - R 959.70
R 959.70
R 959.70 - R 959.70
R 959.70
Available for backorder

45 Terminal Extensions Compact Nsx 400 630 Set Of 3 Parts45 Terminal Extensions Compact Nsx 400 630 Set Of 3 Parts is built for safe, reliable use ...

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R 959.70 - R 959.70
R 959.70
R 959.70 - R 959.70
R 959.70
Available for backorder
Available for backorder

connection adapter for plug in base, ComPact NSX 400/630, 4 poles

Schneider Electric
R 327.95 - R 327.95
R 327.95
R 327.95 - R 327.95
R 327.95
Available for backorder

Connection Adapter for Plug In Base Compact Nsx 400 630 4 PolesConnection Adapter for Plug In Base Compact Nsx 400 630 4 Poles is built for safe, r...

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R 327.95 - R 327.95
R 327.95
R 327.95 - R 327.95
R 327.95
Available for backorder
Available for backorder

rear insulation screens, ComPact NSX400/630, 4 poles, pitch 70mm, set of 2 parts

Schneider Electric
R 949.80 - R 949.80
R 949.80
R 949.80 - R 949.80
R 949.80
Available for backorder

Rear Insulation Screens Compact Nsx400 630 4 Poles Pitch 70Mm Set Of 2 PartsRear Insulation Screens Compact Nsx400 630 4 Poles Pitch 70Mm Set Of 2 ...

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R 949.80 - R 949.80
R 949.80
R 949.80 - R 949.80
R 949.80
Available for backorder
Available for backorder

rear insulation screens, ComPact NSX400/630, 3 poles, pitch 70mm, set of 2 parts

Schneider Electric
R 678.42 - R 678.42
R 678.42
R 678.42 - R 678.42
R 678.42
Available for backorder

Rear Insulation Screens Compact Nsx400 630 3 Poles Pitch 70Mm Set Of 2 PartsRear Insulation Screens Compact Nsx400 630 3 Poles Pitch 70Mm Set Of 2 ...

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R 678.42 - R 678.42
R 678.42
R 678.42 - R 678.42
R 678.42
Available for backorder
Available for backorder

NS retrofit escutcheon, ComPact NSX400/630, small cut-out

Schneider Electric
R 419.71 - R 419.71
R 419.71
R 419.71 - R 419.71
R 419.71
Available for backorder

Ns Retrofit Escutcheon Compact Nsx400 630 Small Cut OutNs Retrofit Escutcheon Compact Nsx400 630 Small Cut Out is built for safe, reliable use in h...

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R 419.71 - R 419.71
R 419.71
R 419.71 - R 419.71
R 419.71
Available for backorder
Available for backorder

escutcheon for toggle with trip unit access, fixed ComPact NSX400/630, IP30

Schneider Electric
R 376.01 - R 376.01
R 376.01
R 376.01 - R 376.01
R 376.01
Available for backorder

Escutcheon for Toggle With Trip Unit Access Fixed Compact Nsx400 630 Ip30Escutcheon for Toggle With Trip Unit Access Fixed Compact Nsx400 630 Ip30 ...

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R 376.01 - R 376.01
R 376.01
R 376.01 - R 376.01
R 376.01
Available for backorder
Available for backorder

escutcheon for all control types, fixed ComPact NSX400/630, IP40

Schneider Electric
R 948.57 - R 948.57
R 948.57
R 948.57 - R 948.57
R 948.57
Available for backorder

Escutcheon for All Control Types Fixed Compact Nsx400 630 Ip40Escutcheon for All Control Types Fixed Compact Nsx400 630 Ip40 is built for safe, rel...

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R 948.57 - R 948.57
R 948.57
R 948.57 - R 948.57
R 948.57
Available for backorder
Available for backorder

escutcheon for all control types, fixed ComPact NSX400/630, IP30

Schneider Electric
R 873.68 - R 873.68
R 873.68
R 873.68 - R 873.68
R 873.68
Available for backorder

Escutcheon for All Control Types Fixed Compact Nsx400 630 Ip30Escutcheon for All Control Types Fixed Compact Nsx400 630 Ip30 is built for safe, rel...

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R 873.68 - R 873.68
R 873.68
R 873.68 - R 873.68
R 873.68
Available for backorder
Available for backorder

toggle extension, ComPact NSX400/630, set of 5 spare parts

Schneider Electric
R 1,163.85 - R 1,163.85
R 1,163.85
R 1,163.85 - R 1,163.85
R 1,163.85
Available for backorder

Toggle Extension Compact Nsx400 630 Set Of 5 Spare PartsToggle Extension Compact Nsx400 630 Set Of 5 Spare Parts is built for safe, reliable use in...

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R 1,163.85 - R 1,163.85
R 1,163.85
R 1,163.85 - R 1,163.85
R 1,163.85
Available for backorder
Available for backorder

bag of screws, ComPact NSX400/630, EasyPact CVS CVS400/630

Schneider Electric
R 435.84 - R 435.84
R 435.84
R 435.84 - R 435.84
R 435.84
Available for backorder

Bag Of Screws Compact Nsx400 630 Easypact Cvs Cvs400 630Bag Of Screws Compact Nsx400 630 Easypact Cvs Cvs400 630 is built for safe, reliable use in...

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R 435.84 - R 435.84
R 435.84
R 435.84 - R 435.84
R 435.84
Available for backorder
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

Plug In Kit Compact Nsx 400 630 With Vigi Add On Module 4 PolesPlug In Kit Compact Nsx 400 630 With Vigi Add On Module 4 Poles is built for safe, r...

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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

plug-in kit, ComPact NSX 400/630 with Vigi add-on module, 3 poles

Schneider Electric
R 8,683.48 - R 8,683.48
R 8,683.48
R 8,683.48 - R 8,683.48
R 8,683.48
Available for backorder

Plug In Kit Compact Nsx 400 630 With Vigi Add On Module 3 PolesPlug In Kit Compact Nsx 400 630 With Vigi Add On Module 3 Poles is built for safe, r...

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R 8,683.48 - R 8,683.48
R 8,683.48
R 8,683.48 - R 8,683.48
R 8,683.48
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

Escutcheon With Collar for Toggle Drawout Compact Nsx400 630 Ip40Escutcheon With Collar for Toggle Drawout Compact Nsx400 630 Ip40 is built for saf...

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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

shutters, ComPact NSX400/630, for plug-in base, IP40

Schneider Electric
R 346.36 - R 346.36
R 346.36
R 346.36 - R 346.36
R 346.36
Available for backorder

Shutters Compact Nsx400 630 for Plug In Base Ip40Shutters Compact Nsx400 630 for Plug In Base Ip40 is built for safe, reliable use in homes, office...

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R 346.36 - R 346.36
R 346.36
R 346.36 - R 346.36
R 346.36
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

Power Connections Compact Nsx400 630 Plug In Kit With Vigi Add On Set Of 2 PartsPower Connections Compact Nsx400 630 Plug In Kit With Vigi Add On S...

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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

torque limiting screws, ComPact NSX 400/630, power connections, set of 12 parts

Schneider Electric
R 457.15 - R 457.15
R 457.15
R 457.15 - R 457.15
R 457.15
Available for backorder

Torque Limiting Screws Compact Nsx 400 630 Power Connections Set Of 12 PartsTorque Limiting Screws Compact Nsx 400 630 Power Connections Set Of 12 ...

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R 457.15 - R 457.15
R 457.15
R 457.15 - R 457.15
R 457.15
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

Spreaders 45 Mm To 70 Mm Pitch Compact Nsx 400 630 4 Poles Set Of 4 PartsSpreaders 45 Mm To 70 Mm Pitch Compact Nsx 400 630 4 Poles Set Of 4 Parts ...

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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

Right Angle Terminal Extensions Compact Nsx 400 630 Set Of 3 PartsRight Angle Terminal Extensions Compact Nsx 400 630 Set Of 3 Parts is built for s...

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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