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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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trip unit MA25 for ComPacT NSX 100/160 circuit breakers, magnetic, rating 25 A, 3 poles 3d

Schneider Electric
R 2,253.29 - R 2,253.29
R 2,253.29
R 2,253.29 - R 2,253.29
R 2,253.29
229 in stock

Trip Unit Ma25 for Compact Nsx 100 160 Circuit Breakers Magnetic Rating 25 A 3 Poles 3DTrip Unit Ma25 for Compact Nsx 100 160 Circuit Breakers Magn...

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R 2,253.29 - R 2,253.29
R 2,253.29
R 2,253.29 - R 2,253.29
R 2,253.29

trip unit MA12.5 for ComPacT NSX 100 circuit breakers, magnetic, rating 12.5 A, 3 poles 3d

Schneider Electric
R 2,253.29 - R 2,253.29
R 2,253.29
R 2,253.29 - R 2,253.29
R 2,253.29
1768 in stock

Trip Unit Ma12 5 for Compact Nsx 100 Circuit Breakers Magnetic Rating 12 5 A 3 Poles 3DTrip Unit Ma12 5 for Compact Nsx 100 Circuit Breakers Magnet...

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R 2,253.29 - R 2,253.29
R 2,253.29
R 2,253.29 - R 2,253.29
R 2,253.29

trip unit MA6.3 for ComPacT NSX 100 circuit breakers, magnetic, rating 6.3 A, 3 poles 3d

Schneider Electric
R 2,253.29 - R 2,253.29
R 2,253.29
R 2,253.29 - R 2,253.29
R 2,253.29
66 in stock

Trip Unit Ma6 3 for Compact Nsx 100 Circuit Breakers Magnetic Rating 6 3 A 3 Poles 3DTrip Unit Ma6 3 for Compact Nsx 100 Circuit Breakers Magnetic ...

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R 2,253.29 - R 2,253.29
R 2,253.29
R 2,253.29 - R 2,253.29
R 2,253.29

trip unit MA2.5 for ComPacT NSX 100 circuit breakers, magnetic, rating 2.5 A, 3 poles 3d

Schneider Electric
R 2,253.29 - R 2,253.29
R 2,253.29
R 2,253.29 - R 2,253.29
R 2,253.29
29 in stock

Trip Unit Ma2 5 for Compact Nsx 100 Circuit Breakers Magnetic Rating 2 5 A 3 Poles 3DTrip Unit Ma2 5 for Compact Nsx 100 Circuit Breakers Magnetic ...

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R 2,253.29 - R 2,253.29
R 2,253.29
R 2,253.29 - R 2,253.29
R 2,253.29

trip unit MicroLogic 5.2 E for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 100A, 3 poles 3d

Schneider Electric
R 3,310.15 - R 3,310.15
R 3,310.15
R 3,310.15 - R 3,310.15
R 3,310.15
1366 in stock

Trip Unit Micrologic 5 2 E for Compact Nsx 100 160 250 Circuit Breakers Electronic Rating 100A 3 Poles 3DTrip Unit Micrologic 5 2 E for Compact Nsx...

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R 3,310.15 - R 3,310.15
R 3,310.15
R 3,310.15 - R 3,310.15
R 3,310.15

trip unit MicroLogic 5.2 E for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 40A, 3 poles 3d

Schneider Electric
R 3,164.50 - R 3,164.50
R 3,164.50
R 3,164.50 - R 3,164.50
R 3,164.50
319 in stock

Trip Unit Micrologic 5 2 E for Compact Nsx 100 160 250 Circuit Breakers Electronic Rating 40A 3 Poles 3DTrip Unit Micrologic 5 2 E for Compact Nsx ...

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R 3,164.50 - R 3,164.50
R 3,164.50
R 3,164.50 - R 3,164.50
R 3,164.50

trip unit MicroLogic 2.2 M for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 100 A, 3 poles 3d

Schneider Electric
R 3,830.59 - R 3,830.59
R 3,830.59
R 3,830.59 - R 3,830.59
R 3,830.59
2476 in stock

Trip Unit Micrologic 2 2 M for Compact Nsx 100 160 250 Circuit Breakers Electronic Rating 100 A 3 Poles 3DTrip Unit Micrologic 2 2 M for Compact Ns...

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R 3,830.59 - R 3,830.59
R 3,830.59
R 3,830.59 - R 3,830.59
R 3,830.59

trip unit MicroLogic 2.2 M for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 50 A, 3 poles 3d

Schneider Electric
R 3,830.59 - R 3,830.59
R 3,830.59
R 3,830.59 - R 3,830.59
R 3,830.59
31 in stock

Trip Unit Micrologic 2 2 M for Compact Nsx 100 160 250 Circuit Breakers Electronic Rating 50 A 3 Poles 3DTrip Unit Micrologic 2 2 M for Compact Nsx...

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R 3,830.59 - R 3,830.59
R 3,830.59
R 3,830.59 - R 3,830.59
R 3,830.59

trip unit MicroLogic 2.2 M for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 25 A, 3 poles 3d

Schneider Electric
R 3,830.59 - R 3,830.59
R 3,830.59
R 3,830.59 - R 3,830.59
R 3,830.59
129 in stock

Trip Unit Micrologic 2 2 M for Compact Nsx 100 160 250 Circuit Breakers Electronic Rating 25 A 3 Poles 3DTrip Unit Micrologic 2 2 M for Compact Nsx...

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R 3,830.59 - R 3,830.59
R 3,830.59
R 3,830.59 - R 3,830.59
R 3,830.59

trip unit MicroLogic 2.2 for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 100A, 3 poles 3d

Schneider Electric
R 2,616.72 - R 2,616.72
R 2,616.72
R 2,616.72 - R 2,616.72
R 2,616.72
152 in stock

Trip Unit Micrologic 2 2 for Compact Nsx 100 160 250 Circuit Breakers Electronic Rating 100A 3 Poles 3DTrip Unit Micrologic 2 2 for Compact Nsx 100...

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R 2,616.72 - R 2,616.72
R 2,616.72
R 2,616.72 - R 2,616.72
R 2,616.72

trip unit MicroLogic 2.2 for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 40A, 3 poles 3d

Schneider Electric
R 2,501.59 - R 2,501.59
R 2,501.59
R 2,501.59 - R 2,501.59
R 2,501.59
39 in stock

Trip Unit Micrologic 2 2 for Compact Nsx 100 160 250 Circuit Breakers Electronic Rating 40A 3 Poles 3DTrip Unit Micrologic 2 2 for Compact Nsx 100 ...

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R 2,501.59 - R 2,501.59
R 2,501.59
R 2,501.59 - R 2,501.59
R 2,501.59

keylock Ronis 1351B.500, set of 2 parts,keylock adapter not included, 1 key only

Merlin Gerin
R 1,853.39 - R 1,853.39
R 1,853.39
R 1,853.39 - R 1,853.39
R 1,853.39
50 in stock

Keylock Ronis 1351B 500 Set Of 2 Parts Keylock Adapter Not Included 1 Key OnlyKeylock Ronis 1351B 500 Set Of 2 Parts Keylock Adapter Not Included 1...

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R 1,853.39 - R 1,853.39
R 1,853.39
R 1,853.39 - R 1,853.39
R 1,853.39

keylock Ronis 1351B.500, set of 1 part, keylock adapter not included

Schneider Electric
R 1,560.64 - R 1,560.64
R 1,560.64
R 1,560.64 - R 1,560.64
R 1,560.64
66 in stock

Keylock Ronis 1351B 500 Set Of 1 Part Keylock Adapter Not IncludedKeylock Ronis 1351B 500 Set Of 1 Part Keylock Adapter Not Included is built for s...

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R 1,560.64 - R 1,560.64
R 1,560.64
R 1,560.64 - R 1,560.64
R 1,560.64

1 FRONT CONNECTION TERMINAL FOR NS630B/1

Schneider Electric
R 234.79 - R 234.79
R 234.79
R 234.79 - R 234.79
R 234.79
2629 in stock

1 Front Connection Terminal for Ns630B 11 Front Connection Terminal for Ns630B 1 is built for safe, reliable use in homes, offices, or industrial i...

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R 234.79 - R 234.79
R 234.79
R 234.79 - R 234.79
R 234.79

support brackets - for mounting NS630b..1600 fixed

Schneider Electric
R 2,583.03 - R 2,583.03
R 2,583.03
R 2,583.03 - R 2,583.03
R 2,583.03
40 in stock

Support Brackets for Mounting Ns630B 1600 FixedSupport Brackets for Mounting Ns630B 1600 Fixed is built for safe, reliable use in homes, offices, o...

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R 2,583.03 - R 2,583.03
R 2,583.03
R 2,583.03 - R 2,583.03
R 2,583.03

rectangular sensor for earth leakage protection, MasterPact NW, ComPact NS1600b to NS3200, 3200A, inside dimensions 470mm x 160mm

Schneider Electric
R 39,841.73 - R 39,841.73
R 39,841.73
R 39,841.73 - R 39,841.73
R 39,841.73
10 in stock

Rectangular Sensor for Earth Leakage Protection Masterpact Nw Compact Ns1600B To Ns3200 3200A Inside Dimensions 470Mm X 160MmRectangular Sensor for...

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R 39,841.73 - R 39,841.73
R 39,841.73
R 39,841.73 - R 39,841.73
R 39,841.73

rectangular sensor for earth leakage protection, MasterPact NT, ComPact NS630b to NS1600, 1600A, inside dimensions 280mm x 115mm

Schneider Electric
R 30,952.82 - R 30,952.82
R 30,952.82
R 30,952.82 - R 30,952.82
R 30,952.82
9 in stock

Rectangular Sensor for Earth Leakage Protection Masterpact Nt Compact Ns630B To Ns1600 1600A Inside Dimensions 280Mm X 115MmRectangular Sensor for ...

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R 30,952.82 - R 30,952.82
R 30,952.82
R 30,952.82 - R 30,952.82
R 30,952.82

CB NS630B/1000 N MANUAL 3P

Schneider Electric
R 9,897.63 - R 9,897.63
R 9,897.63
R 9,897.63 - R 9,897.63
R 9,897.63
801 in stock

Cb Ns630B 1000 N Manual 3PCb Ns630B 1000 N Manual 3P is built for safe, reliable use in homes, offices, or industrial installations. Designed with ...

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R 9,897.63 - R 9,897.63
R 9,897.63
R 9,897.63 - R 9,897.63
R 9,897.63

1 REAR CONNECTION TERMINAL FOR NS630B 16

Schneider Electric
R 1,052.79 - R 1,052.79
R 1,052.79
R 1,052.79 - R 1,052.79
R 1,052.79
2114 in stock

1 Rear Connection Terminal for Ns630B 161 Rear Connection Terminal for Ns630B 16 is built for safe, reliable use in homes, offices, or industrial i...

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R 1,052.79 - R 1,052.79
R 1,052.79
R 1,052.79 - R 1,052.79
R 1,052.79

1 FRONT CONNECTION TERMINAL FOR NS1600 F

Schneider Electric
R 564.00 - R 564.00
R 564.00
R 564.00 - R 564.00
R 564.00
429 in stock

R 564.00 - R 564.00
R 564.00
R 564.00 - R 564.00
R 564.00

NS630/1600 NA 3P

Schneider Electric
R 33,985.41 - R 33,985.41
R 33,985.41
R 33,985.41 - R 33,985.41
R 33,985.41
13 in stock

Ns630 1600 Na 3PNs630 1600 Na 3P is built for safe, reliable use in homes, offices, or industrial installations. Designed with durable materials an...

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R 33,985.41 - R 33,985.41
R 33,985.41
R 33,985.41 - R 33,985.41
R 33,985.41

NS630B/1600N/H ELEC. OP. OR NT630/1600N/3 POLE

Schneider Electric
R 40,172.26 - R 40,172.26
R 40,172.26
R 40,172.26 - R 40,172.26
R 40,172.26
67 in stock

Ns630B 1600N H Elec Op Or Nt630 1600N 3 PoleNs630B 1600N H Elec Op Or Nt630 1600N 3 Pole is built for safe, reliable use in homes, offices, or indu...

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R 40,172.26 - R 40,172.26
R 40,172.26
R 40,172.26 - R 40,172.26
R 40,172.26

NS630B/1600NA MANUAL 3P

Schneider Electric
R 19,226.85 - R 19,226.85
R 19,226.85
R 19,226.85 - R 19,226.85
R 19,226.85
52 in stock

Ns630B 1600Na Manual 3PNs630B 1600Na Manual 3P is built for safe, reliable use in homes, offices, or industrial installations. Designed with durabl...

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R 19,226.85 - R 19,226.85
R 19,226.85
R 19,226.85 - R 19,226.85
R 19,226.85

NS630B/1600N/H MANUAL 4P

Schneider Electric
R 39,394.58 - R 39,394.58
R 39,394.58
R 39,394.58 - R 39,394.58
R 39,394.58
51 in stock

Ns630B 1600N H Manual 4PNs630B 1600N H Manual 4P is built for safe, reliable use in homes, offices, or industrial installations. Designed with dura...

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R 39,394.58 - R 39,394.58
R 39,394.58
R 39,394.58 - R 39,394.58
R 39,394.58