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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
Available for backorder

communication terminal block, insulated NSX cord, ComPact NSX, system voltage above 480 V AC, 1.3 m length

Schneider Electric
R 5,366.74 - R 5,366.74
R 5,366.74
R 5,366.74 - R 5,366.74
R 5,366.74
Available for backorder

Communication Terminal Block Insulated Nsx Cord Compact Nsx System Voltage Above 480 V Ac 1 3 M LengthCommunication Terminal Block Insulated Nsx Co...

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R 5,366.74 - R 5,366.74
R 5,366.74
R 5,366.74 - R 5,366.74
R 5,366.74
Available for backorder

communication terminal block, NSX cord, ComPact NSX, 3 m length

Schneider Electric
R 1,357.28 - R 1,357.28
R 1,357.28
R 1,357.28 - R 1,357.28
R 1,357.28
1371 in stock

Communication Terminal Block Nsx Cord Compact Nsx 3 M LengthCommunication Terminal Block Nsx Cord Compact Nsx 3 M Length is built for safe, reliabl...

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R 1,357.28 - R 1,357.28
R 1,357.28
R 1,357.28 - R 1,357.28
R 1,357.28

communication terminal block, NSX cord, ComPact NSX, 1.3 m length

Schneider Electric
R 1,250.35 - R 1,250.35
R 1,250.35
R 1,250.35 - R 1,250.35
R 1,250.35
Only 4 left!

Communication Terminal Block Nsx Cord Compact Nsx 1 3 M LengthCommunication Terminal Block Nsx Cord Compact Nsx 1 3 M Length is built for safe, rel...

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R 1,250.35 - R 1,250.35
R 1,250.35
R 1,250.35 - R 1,250.35
R 1,250.35

communication terminal block, NSX cord, ComPact NSX, 0.35 m length

Schneider Electric
R 1,201.28 - R 1,201.28
R 1,201.28
R 1,201.28 - R 1,201.28
R 1,201.28
8 in stock

Communication Terminal Block Nsx Cord Compact Nsx 0 35 M LengthCommunication Terminal Block Nsx Cord Compact Nsx 0 35 M Length is built for safe, r...

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R 1,201.28 - R 1,201.28
R 1,201.28
R 1,201.28 - R 1,201.28
R 1,201.28
Available for backorder

circuit breaker ComPact NSX630HB2, 100 kA at 690 VAC, MicroLogic 5.3 E trip unit 630 A, 3 poles 3d

Schneider Electric
R 45,481.30 - R 45,481.30
R 45,481.30
R 45,481.30 - R 45,481.30
R 45,481.30
Available for backorder

Circuit Breaker Compact Nsx630Hb2 100 Ka At 690 Vac Micrologic 5 3 E Trip Unit 630 A 3 Poles 3DCircuit Breaker Compact Nsx630Hb2 100 Ka At 690 Vac ...

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R 45,481.30 - R 45,481.30
R 45,481.30
R 45,481.30 - R 45,481.30
R 45,481.30
Available for backorder
Available for backorder

circuit breaker ComPact NSX630HB1, 75 kA at 690 VAC, MicroLogic 6.3 E trip unit 630 A, 3 poles 3d

Schneider Electric
R 44,423.03 - R 44,423.03
R 44,423.03
R 44,423.03 - R 44,423.03
R 44,423.03
Available for backorder

Circuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Micrologic 6 3 E Trip Unit 630 A 3 Poles 3DCircuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Mi...

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R 44,423.03 - R 44,423.03
R 44,423.03
R 44,423.03 - R 44,423.03
R 44,423.03
Available for backorder
Available for backorder

circuit breaker ComPact NSX630HB1, 75 kA at 690 VAC, MicroLogic 5.3 E trip unit 630 A, 4 poles 4d

Schneider Electric
R 44,480.92 - R 44,480.92
R 44,480.92
R 44,480.92 - R 44,480.92
R 44,480.92
Available for backorder

Circuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Micrologic 5 3 E Trip Unit 630 A 4 Poles 4DCircuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Mi...

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R 44,480.92 - R 44,480.92
R 44,480.92
R 44,480.92 - R 44,480.92
R 44,480.92
Available for backorder
Available for backorder

circuit breaker ComPact NSX630HB1, 75 kA at 690 VAC, MicroLogic 5.3 E trip unit 630 A, 3 poles 3d

Schneider Electric
R 42,096.10 - R 42,096.10
R 42,096.10
R 42,096.10 - R 42,096.10
R 42,096.10
Available for backorder

Circuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Micrologic 5 3 E Trip Unit 630 A 3 Poles 3DCircuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Mi...

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R 42,096.10 - R 42,096.10
R 42,096.10
R 42,096.10 - R 42,096.10
R 42,096.10
Available for backorder
Available for backorder

circuit breaker ComPact NSX630HB1, 75 kA at 690 VAC, MicroLogic 2.3 M trip unit 500 A, 3 poles 3d

Schneider Electric
R 33,340.43 - R 33,340.43
R 33,340.43
R 33,340.43 - R 33,340.43
R 33,340.43
Available for backorder

Circuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Micrologic 2 3 M Trip Unit 500 A 3 Poles 3DCircuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Mi...

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R 33,340.43 - R 33,340.43
R 33,340.43
R 33,340.43 - R 33,340.43
R 33,340.43
Available for backorder
Available for backorder

circuit breaker ComPact NSX630HB1, 75 kA at 690 VAC, MicroLogic 1.3 M trip unit 500 A, 3 poles 3d

Schneider Electric
R 31,224.73 - R 31,224.73
R 31,224.73
R 31,224.73 - R 31,224.73
R 31,224.73
Available for backorder

Circuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Micrologic 1 3 M Trip Unit 500 A 3 Poles 3DCircuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Mi...

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R 31,224.73 - R 31,224.73
R 31,224.73
R 31,224.73 - R 31,224.73
R 31,224.73
Available for backorder
Available for backorder

circuit breaker ComPact NSX630HB1, 75 kA at 690 VAC, MicroLogic 2.3 trip unit 630 A, 4 poles 4d

Schneider Electric
R 39,543.90 - R 39,543.90
R 39,543.90
R 39,543.90 - R 39,543.90
R 39,543.90
Available for backorder

Circuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Micrologic 2 3 Trip Unit 630 A 4 Poles 4DCircuit Breaker Compact Nsx630Hb1 75 Ka At 690 Vac Micr...

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R 39,543.90 - R 39,543.90
R 39,543.90
R 39,543.90 - R 39,543.90
R 39,543.90
Available for backorder

circuit breaker ComPact NSX630HB1, 75 kA at 690 VAC, MicroLogic 2.3 trip unit, 630 A, 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 1 left!

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

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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
Available for backorder

circuit breaker ComPact NSX630R, 200 kA at 415 VAC, MicroLogic 2.3 trip unit, 630 A, 3 poles 3d

Schneider Electric
R 41,852.36 - R 41,852.36
R 41,852.36
R 41,852.36 - R 41,852.36
R 41,852.36
Available for backorder

Circuit Breaker Compact Nsx630R 200 Ka At 415 Vac Micrologic 2 3 Trip Unit 630 A 3 Poles 3DCircuit Breaker Compact Nsx630R 200 Ka At 415 Vac Microl...

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R 41,852.36 - R 41,852.36
R 41,852.36
R 41,852.36 - R 41,852.36
R 41,852.36
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB2, 100 kA at 690 VAC, MicroLogic 2.3 trip unit 400 A, 3 poles 3d

Schneider Electric
R 22,738.81 - R 22,738.81
R 22,738.81
R 22,738.81 - R 22,738.81
R 22,738.81
Available for backorder

Circuit Breaker Compact Nsx400Hb2 100 Ka At 690 Vac Micrologic 2 3 Trip Unit 400 A 3 Poles 3DCircuit Breaker Compact Nsx400Hb2 100 Ka At 690 Vac Mi...

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R 22,738.81 - R 22,738.81
R 22,738.81
R 22,738.81 - R 22,738.81
R 22,738.81
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB1, 75 kA at 690 VAC, MicroLogic 6.3 E trip unit 400 A, 3 poles 3d

Schneider Electric
R 37,416.02 - R 37,416.02
R 37,416.02
R 37,416.02 - R 37,416.02
R 37,416.02
Available for backorder

Circuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Micrologic 6 3 E Trip Unit 400 A 3 Poles 3DCircuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Mi...

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R 37,416.02 - R 37,416.02
R 37,416.02
R 37,416.02 - R 37,416.02
R 37,416.02
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB1, 75 kA at 690 VAC, MicroLogic 5.3 E trip unit 400 A, 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
Available for backorder

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

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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
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB1, 75 kA at 690 VAC, MicroLogic 2.3 M trip unit 320 A, 3 poles 3d

Schneider Electric
R 25,576.41 - R 25,576.41
R 25,576.41
R 25,576.41 - R 25,576.41
R 25,576.41
Available for backorder

Circuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Micrologic 2 3 M Trip Unit 320 A 3 Poles 3DCircuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Mi...

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R 25,576.41 - R 25,576.41
R 25,576.41
R 25,576.41 - R 25,576.41
R 25,576.41
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB1, 75 kA at 690 VAC, MicroLogic 1.3 M trip unit 320 A, 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
Available for backorder

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

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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
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB1, 75 kA at 690 VAC, MicroLogic 2.3 trip unit 400 A, 4 poles 4d

Schneider Electric
R 32,624.90 - R 32,624.90
R 32,624.90
R 32,624.90 - R 32,624.90
R 32,624.90
Available for backorder

Circuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Micrologic 2 3 Trip Unit 400 A 4 Poles 4DCircuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Micr...

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R 32,624.90 - R 32,624.90
R 32,624.90
R 32,624.90 - R 32,624.90
R 32,624.90
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB1, 75 kA at 690 VAC, MicroLogic 2.3 trip unit, 400 A, 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
Available for backorder

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

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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
Available for backorder
Available for backorder

circuit breaker ComPact NSX400HB1, 75 kA at 690 VAC, MicroLogic 2.3 trip unit 250 A, 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
Available for backorder

Circuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Micrologic 2 3 Trip Unit 250 A 3 Poles 3DCircuit Breaker Compact Nsx400Hb1 75 Ka At 690 Vac Micr...

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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
Available for backorder
Available for backorder

circuit breaker ComPact NSX400R, 200 kA at 415 VAC, MicroLogic 5.3 E trip unit 400 A, 4 poles 4d

Schneider Electric
R 42,657.95 - R 42,657.95
R 42,657.95
R 42,657.95 - R 42,657.95
R 42,657.95
Available for backorder

Circuit Breaker Compact Nsx400R 200 Ka At 415 Vac Micrologic 5 3 E Trip Unit 400 A 4 Poles 4DCircuit Breaker Compact Nsx400R 200 Ka At 415 Vac Micr...

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R 42,657.95 - R 42,657.95
R 42,657.95
R 42,657.95 - R 42,657.95
R 42,657.95
Available for backorder
Available for backorder

circuit breaker ComPact NSX400R, 200 kA at 415 VAC, MicroLogic 2.3 trip unit 400 A, 3 poles 3d

Schneider Electric
R 34,597.60 - R 34,597.60
R 34,597.60
R 34,597.60 - R 34,597.60
R 34,597.60
Available for backorder

Circuit Breaker Compact Nsx400R 200 Ka At 415 Vac Micrologic 2 3 Trip Unit 400 A 3 Poles 3DCircuit Breaker Compact Nsx400R 200 Ka At 415 Vac Microl...

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R 34,597.60 - R 34,597.60
R 34,597.60
R 34,597.60 - R 34,597.60
R 34,597.60
Available for backorder
Available for backorder

circuit breaker ComPact NSX250HB1, 75 kA at 690 VAC, MicroLogic 5.2 E trip unit 250 A, 3 poles 3d

Schneider Electric
R 28,527.77 - R 28,527.77
R 28,527.77
R 28,527.77 - R 28,527.77
R 28,527.77
Available for backorder

Circuit Breaker Compact Nsx250Hb1 75 Ka At 690 Vac Micrologic 5 2 E Trip Unit 250 A 3 Poles 3DCircuit Breaker Compact Nsx250Hb1 75 Ka At 690 Vac Mi...

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R 28,527.77 - R 28,527.77
R 28,527.77
R 28,527.77 - R 28,527.77
R 28,527.77
Available for backorder