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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 TM80D for ComPacT NSX 100/160/250 circuit breakers, thermal magnetic, rating 80 A, 3 poles 3d

Schneider Electric
R 2,180.60 - R 2,180.60
R 2,180.60
R 2,180.60 - R 2,180.60
R 2,180.60
340 in stock

This TM80D is a 3 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 80A rating thermal-magnetic trip unit ...

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R 2,180.60 - R 2,180.60
R 2,180.60
R 2,180.60 - R 2,180.60
R 2,180.60

trip unit TM63D for ComPacT NSX 100/160/250 circuit breakers, thermal magnetic, rating 63 A, 3 poles 3d

Schneider Electric
R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67
691 in stock

This TM63D is a 3 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 63A rating thermal-magnetic trip unit ...

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R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67

trip unit TM50D for ComPacT NSX 100/160 circuit breakers, thermal magnetic, rating 50 A, 3 poles 3d

Schneider Electric
R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67
133 in stock

This TM50D is a 3 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 50A rating thermal-magnetic trip unit is a...

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R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67

trip unit TM40D for ComPacT NSX 100/160 circuit breakers, thermal magnetic, rating 40 A, 3 poles 3d

Schneider Electric
R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67
387 in stock

This TM40D is a 3 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 40A rating thermal-magnetic trip unit is a...

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R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67

trip unit TM32D for ComPacT NSX 100/160 circuit breakers, thermal magnetic, rating 32 A, 3 poles 3d

Schneider Electric
R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67
145 in stock

This TM32D is a 3 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 32A rating thermal-magnetic trip unit is a...

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R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67

trip unit TM25D for ComPacT NSX 100 circuit breakers, thermal magnetic, rating 25 A, 3 poles 3d

Schneider Electric
R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67
153 in stock

This TM25D is a 3 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100 circuit breakers. This 25A rating thermal-magnetic trip unit is an op...

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R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67

trip unit TM16D for ComPacT NSX 100 circuit breakers, thermal magnetic, rating 16 A, 3 poles 3d

Schneider Electric
R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67
567 in stock

This TM16D is a 3 poles 3d thermal-magnetic trip unit used on ComPacT NSX 100 circuit breakers. This 16A rating thermal-magnetic trip unit is an op...

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R 2,084.67 - R 2,084.67
R 2,084.67
R 2,084.67 - R 2,084.67
R 2,084.67

trip unit MA100 for ComPacT NSX 100/160/250 circuit breakers, magnetic, rating 100 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
318 in stock

This MA100 is a 3 poles 3d magnetic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 100A rating magnetic trip unit is an optimum c...

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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 MA50 for ComPacT NSX 100/160 circuit breakers, magnetic, rating 50 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
350 in stock

This MA50 is a 3 poles 3d magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 50A rating magnetic trip unit is an optimum choice ...

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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 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
220 in stock

This MA25 is a 3 poles 3d magnetic trip unit used on ComPacT NSX 100/160 circuit breakers. This 25A rating magnetic trip unit is an optimum choice ...

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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
1593 in stock

This MA12.5 is a 3 poles 3d magnetic trip unit used on ComPacT NSX 100 circuit breakers. This 12.5A rating magnetic trip unit is an optimum choice ...

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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
29 in stock

This MA6.3 is a 3 poles 3d magnetic trip unit used on ComPacT NSX 100 circuit breakers. This 6.3A rating magnetic trip unit is an optimum choice fo...

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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
21 in stock

This MA2.5 is a 3 poles 3d magnetic trip unit used on ComPacT NSX 100 circuit breakers. This 2.5A rating magnetic trip unit is an optimum choice fo...

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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
1281 in stock

This MicroLogic 5.2 E (Energy) is a 3 poles 3d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 100A rating electronic t...

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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
234 in stock

This MicroLogic 5.2 E (Energy) is a 3 poles 3d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 40A rating electronic tr...

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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
4229 in stock

This MicroLogic 2.2 M is a 3 poles 3d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 100A rating magnetic trip unit is...

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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
9 in stock

This MicroLogic 2.2 M is a 3 poles 3d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 50A rating electronic trip unit i...

View full details
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
128 in stock

This MicroLogic 2.2 M is a 3 poles 3d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 25A rating electronic trip unit i...

View full details
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 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
19 in stock

This MicroLogic 2.2 is a 3 poles 3d electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This 40A rating electronic trip unit is ...

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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
18 in stock

It is a keylock kit for Compact NSX, EasyPact CVS and PowerPact Multistandard devices. It is used for rotary handle locking. The set includes a key...

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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
228 in stock

It is a keylock kit for Compact NSX, EasyPact CVS and PowerPact Multistandard devices. It is used for rotary handle locking. The set includes a ke...

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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
2600 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
50 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
6 in stock

This is a rectangular sensor for earth leakage protection for Compact NS 1600b to 3200 devices equipped with Micrologic 7 A/P trip unit. The sensor...

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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