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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
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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
Only 1 left!

Trip Unit Micrologic 5 2 E for Compact Nsx 100 160 250 Circuit Breakers Electronic Rating 100A 3 Poles 3D 1Trip Unit Micrologic 5 2 E for Compact N...

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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

standard auxiliary contact, ComPact NSXm, circuit breaker status OF/SD, 1 changeover contact type

Square D
R 936.77 - R 936.77
R 936.77
R 936.77 - R 936.77
R 936.77
135 in stock

Standard Auxiliary Contact Compact Nsxm Circuit Breaker Status Of Sd 1 Changeover Contact TypeStandard Auxiliary Contact Compact Nsxm Circuit Break...

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R 936.77 - R 936.77
R 936.77
R 936.77 - R 936.77
R 936.77

extended rotary handle, ComPacT NSXm, black handle, shaft length 200 to 600 mm, IP54

Schneider Electric
R 2,886.07 - R 2,886.07
R 2,886.07
R 2,886.07 - R 2,886.07
R 2,886.07
49 in stock

Extended Rotary Handle Compact Nsxm Black Handle Shaft Length 200 To 600 Mm Ip54 1Extended Rotary Handle Compact Nsxm Black Handle Shaft Length 200...

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R 2,886.07 - R 2,886.07
R 2,886.07
R 2,886.07 - R 2,886.07
R 2,886.07

standard MX shunt release, ComPact NSXm, rated voltage 250 VDC, 220/240 VAC 50 Hz, 208/240 VAC 60Hz, 277 VAC 60 Hz

Square D
R 2,041.72 - R 2,041.72
R 2,041.72
R 2,041.72 - R 2,041.72
R 2,041.72
Only 2 left!

Standard Mx Shunt Release Compact Nsxm Rated Voltage 250 Vdc 220 240 Vac 50 Hz 208 240 Vac 60Hz 277 Vac 60 HzStandard Mx Shunt Release Compact Nsxm...

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R 2,041.72 - R 2,041.72
R 2,041.72
R 2,041.72 - R 2,041.72
R 2,041.72

standard MX shunt release, ComPact NSXm, rated voltage 125 VDC, 110/130 VAC 50/60Hz

Schneider Electric
R 2,041.73 - R 2,041.73
R 2,041.73
R 2,041.73 - R 2,041.73
R 2,041.73
Only 1 left!

Standard Mx Shunt Release Compact Nsxm Rated Voltage 125 Vdc 110 130 Vac 50 60HzStandard Mx Shunt Release Compact Nsxm Rated Voltage 125 Vdc 110 13...

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R 2,041.73 - R 2,041.73
R 2,041.73
R 2,041.73 - R 2,041.73
R 2,041.73

Circuit breaker ComPacT NSX630HB1, 75kA at 690VAC, MicroLogic 2.3 trip unit, 630A, 3 poles 3d

Schneider Electric
R 32,811.49 - R 32,811.49
R 32,811.49
R 32,811.49 - R 32,811.49
R 32,811.49
Only 4 left!

Circuit Breaker Compact Nsx630Hb1 75Ka At 690Vac Micrologic 2 3 Trip Unit 630A 3 Poles 3DCircuit Breaker Compact Nsx630Hb1 75Ka At 690Vac Micrologi...

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R 32,811.49 - R 32,811.49
R 32,811.49
R 32,811.49 - R 32,811.49
R 32,811.49

Circuit breaker ComPacT NSX600S DC, 100kA at 750 VDC, TM-DC trip unit, 600 A rating, 4 poles

Schneider Electric
R 46,519.30 - R 46,519.30
R 46,519.30
R 46,519.30 - R 46,519.30
R 46,519.30
Only 2 left!

Circuit Breaker Compact Nsx600S Dc 100Ka At 750 Vdc Tm Dc Trip Unit 600 A Rating 4 PolesCircuit Breaker Compact Nsx600S Dc 100Ka At 750 Vdc Tm Dc T...

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R 46,519.30 - R 46,519.30
R 46,519.30
R 46,519.30 - R 46,519.30
R 46,519.30

circuit breaker basic frame, ComPacT NSX630N, 50 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 21,210.26 - R 21,210.26
R 21,210.26
R 21,210.26 - R 21,210.26
R 21,210.26
44 in stock

Circuit Breaker Basic Frame Compact Nsx630N 50 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 PolesCircuit Breaker Basic Frame Compact Nsx630N 50...

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R 21,210.26 - R 21,210.26
R 21,210.26
R 21,210.26 - R 21,210.26
R 21,210.26

circuit breaker basic frame, ComPacT NSX630N, 50 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 3 poles

Schneider Electric
R 15,907.71 - R 15,907.71
R 15,907.71
R 15,907.71 - R 15,907.71
R 15,907.71
449 in stock

Circuit Breaker Basic Frame Compact Nsx630N 50 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx630N 50...

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R 15,907.71 - R 15,907.71
R 15,907.71
R 15,907.71 - R 15,907.71
R 15,907.71

circuit breaker basic frame, ComPacT NSX630L, 150 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 3 poles

Schneider Electric
R 21,173.14 - R 21,173.14
R 21,173.14
R 21,173.14 - R 21,173.14
R 21,173.14
30 in stock

Circuit Breaker Basic Frame Compact Nsx630L 150 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx630L 1...

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R 21,173.14 - R 21,173.14
R 21,173.14
R 21,173.14 - R 21,173.14
R 21,173.14

circuit breaker basic frame, ComPacT NSX630H, 70 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 3 poles

Schneider Electric
R 17,498.48 - R 17,498.48
R 17,498.48
R 17,498.48 - R 17,498.48
R 17,498.48
89 in stock

Circuit Breaker Basic Frame Compact Nsx630H 70 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx630H 70...

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R 17,498.48 - R 17,498.48
R 17,498.48
R 17,498.48 - R 17,498.48
R 17,498.48

circuit breaker basic frame, ComPacT NSX630F, 36 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 4 poles

Schneider Electric
R 19,282.06 - R 19,282.06
R 19,282.06
R 19,282.06 - R 19,282.06
R 19,282.06
45 in stock

Circuit Breaker Basic Frame Compact Nsx630F 36 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 4 PolesCircuit Breaker Basic Frame Compact Nsx630F 36...

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R 19,282.06 - R 19,282.06
R 19,282.06
R 19,282.06 - R 19,282.06
R 19,282.06

circuit breaker basic frame, ComPacT NSX630F, 36 kA at 415 VAC 50/60 Hz, 630 A, without trip unit, 3 poles

Schneider Electric
R 14,461.56 - R 14,461.56
R 14,461.56
R 14,461.56 - R 14,461.56
R 14,461.56
172 in stock

Circuit Breaker Basic Frame Compact Nsx630F 36 Ka At 415 Vac 50 60 Hz 630 A Without Trip Unit 3 PolesCircuit Breaker Basic Frame Compact Nsx630F 36...

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R 14,461.56 - R 14,461.56
R 14,461.56
R 14,461.56 - R 14,461.56
R 14,461.56

trip unit MicroLogic 2.3 for ComPacT NSX 630 circuit breakers, electronic, rating 630A, 4 poles 4d

Schneider Electric
R 8,977.63 - R 8,977.63
R 8,977.63
R 8,977.63 - R 8,977.63
R 8,977.63
85 in stock

Trip Unit Micrologic 2 3 for Compact Nsx 630 Circuit Breakers Electronic Rating 630A 4 Poles 4DTrip Unit Micrologic 2 3 for Compact Nsx 630 Circuit...

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R 8,977.63 - R 8,977.63
R 8,977.63
R 8,977.63 - R 8,977.63
R 8,977.63

trip unit MicroLogic 5.3 E for ComPacT NSX 630 circuit breakers, electronic, rating 630A, 3 poles 3d

Schneider Electric
R 8,887.86 - R 8,887.86
R 8,887.86
R 8,887.86 - R 8,887.86
R 8,887.86
354 in stock

Click here to view spec sheet.

R 8,887.86 - R 8,887.86
R 8,887.86
R 8,887.86 - R 8,887.86
R 8,887.86

trip unit MicroLogic 2.3 M for ComPacT NSX 630 circuit breakers, electronic, rating 500 A, 3 poles 3d

Schneider Electric
R 6,387.46 - R 6,387.46
R 6,387.46
R 6,387.46 - R 6,387.46
R 6,387.46
Only 4 left!

Trip Unit Micrologic 2 3 M for Compact Nsx 630 Circuit Breakers Electronic Rating 500 A 3 Poles 3DTrip Unit Micrologic 2 3 M for Compact Nsx 630 Ci...

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R 6,387.46 - R 6,387.46
R 6,387.46
R 6,387.46 - R 6,387.46
R 6,387.46

trip unit MicroLogic 2.3 for ComPacT NSX 630 circuit breakers, electronic, rating 630A, 3 poles 3d

Schneider Electric
R 6,733.22 - R 6,733.22
R 6,733.22
R 6,733.22 - R 6,733.22
R 6,733.22
414 in stock

Trip Unit Micrologic 2 3 for Compact Nsx 630 Circuit Breakers Electronic Rating 630A 3 Poles 3DTrip Unit Micrologic 2 3 for Compact Nsx 630 Circuit...

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R 6,733.22 - R 6,733.22
R 6,733.22
R 6,733.22 - R 6,733.22
R 6,733.22

trip unit MicroLogic 1.3 M for ComPacT NSX 630 circuit breakers, electronic, rating 500 A, 3 poles 3d

Schneider Electric
R 3,757.33 - R 3,757.33
R 3,757.33
R 3,757.33 - R 3,757.33
R 3,757.33
25 in stock

Trip Unit Micrologic 1 3 M for Compact Nsx 630 Circuit Breakers Electronic Rating 500 A 3 Poles 3DTrip Unit Micrologic 1 3 M for Compact Nsx 630 Ci...

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R 3,757.33 - R 3,757.33
R 3,757.33
R 3,757.33 - R 3,757.33
R 3,757.33

Circuit breaker ComPacT NSX400HB2, 100kA at 690VAC, MicroLogic 1.3 M trip unit 320A, 3 poles 3d

Schneider Electric
R 20,913.97 - R 20,913.97
R 20,913.97
R 20,913.97 - R 20,913.97
R 20,913.97
Only 1 left!

Circuit Breaker Compact Nsx400Hb2 100Ka At 690Vac Micrologic 1 3 M Trip Unit 320A 3 Poles 3DCircuit Breaker Compact Nsx400Hb2 100Ka At 690Vac Micro...

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R 20,913.97 - R 20,913.97
R 20,913.97
R 20,913.97 - R 20,913.97
R 20,913.97

Circuit breaker ComPacT NSX400HB1, 75kA at 690VAC, MicroLogic 5.3 E trip unit 400A, 3 poles 3d

Schneider Electric
R 35,089.10 - R 35,089.10
R 35,089.10
R 35,089.10 - R 35,089.10
R 35,089.10
Only 1 left!

Circuit Breaker Compact Nsx400Hb1 75Ka At 690Vac Micrologic 5 3 E Trip Unit 400A 3 Poles 3DCircuit Breaker Compact Nsx400Hb1 75Ka At 690Vac Microlo...

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R 35,089.10 - R 35,089.10
R 35,089.10
R 35,089.10 - R 35,089.10
R 35,089.10

Circuit breaker ComPacT NSX400HB1, 75kA at 690VAC, MicroLogic 2.3 trip unit, 400A, 3 poles 3d

Schneider Electric
R 26,456.77 - R 26,456.77
R 26,456.77
R 26,456.77 - R 26,456.77
R 26,456.77
20 in stock

Circuit Breaker Compact Nsx400Hb1 75Ka At 690Vac Micrologic 2 3 Trip Unit 400A 3 Poles 3DCircuit Breaker Compact Nsx400Hb1 75Ka At 690Vac Micrologi...

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R 26,456.77 - R 26,456.77
R 26,456.77
R 26,456.77 - R 26,456.77
R 26,456.77

Circuit breaker ComPacT NSX400HB1, 75kA at 690VAC, MicroLogic 1.3 M trip unit 320A, 3 poles 3d

Schneider Electric
R 24,874.62 - R 24,874.62
R 24,874.62
R 24,874.62 - R 24,874.62
R 24,874.62
11 in stock

Circuit Breaker Compact Nsx400Hb1 75Ka At 690Vac Micrologic 1 3 M Trip Unit 320A 3 Poles 3DCircuit Breaker Compact Nsx400Hb1 75Ka At 690Vac Microlo...

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R 24,874.62 - R 24,874.62
R 24,874.62
R 24,874.62 - R 24,874.62
R 24,874.62

Circuit breaker ComPacT NSX400R, 200kA at 415VAC, MicroLogic 1.3 M trip unit 320A, 3 poles 3d

Schneider Electric
R 36,599.43 - R 36,599.43
R 36,599.43
R 36,599.43 - R 36,599.43
R 36,599.43
Only 2 left!

Circuit Breaker Compact Nsx400R 200Ka At 415Vac Micrologic 1 3 M Trip Unit 320A 3 Poles 3DCircuit Breaker Compact Nsx400R 200Ka At 415Vac Micrologi...

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R 36,599.43 - R 36,599.43
R 36,599.43
R 36,599.43 - R 36,599.43
R 36,599.43

circuit breaker basic frame, ComPacT NSX400N, 50 kA at 415 VAC 50/60 Hz, 400 A, without trip unit, 4 poles

Schneider Electric
R 11,783.49 - R 11,783.49
R 11,783.49
R 11,783.49 - R 11,783.49
R 11,783.49
29 in stock

Circuit Breaker Basic Frame Compact Nsx400N 50 Ka At 415 Vac 50 60 Hz 400 A Without Trip Unit 4 PolesCircuit Breaker Basic Frame Compact Nsx400N 50...

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R 11,783.49 - R 11,783.49
R 11,783.49
R 11,783.49 - R 11,783.49
R 11,783.49