Skip to content
About Us Contact Us Latest Articles

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.

Filters

R
R
Available for backorder

circuit breaker, ComPact NSX1000 TM-DC, 2 poles, 1000 A, 50 kA at 600 VDC, with bare cable connector

Schneider Electric
R 32,944.39 - R 32,944.39
R 32,944.39
R 32,944.39 - R 32,944.39
R 32,944.39
Available for backorder

Circuit Breaker Compact Nsx1000 Tm Dc 2 Poles 1000 A 50 Ka At 600 Vdc With Bare Cable ConnectorCircuit Breaker Compact Nsx1000 Tm Dc 2 Poles 1000 A...

View full details
R 32,944.39 - R 32,944.39
R 32,944.39
R 32,944.39 - R 32,944.39
R 32,944.39
Available for backorder
Available for backorder

circuit breaker, ComPact NSX800 TM-DC, 2 poles, 800 A, 50 kA at 600 VDC, with bare cable connector

Schneider Electric
R 31,530.84 - R 31,530.84
R 31,530.84
R 31,530.84 - R 31,530.84
R 31,530.84
Available for backorder

Circuit Breaker Compact Nsx800 Tm Dc 2 Poles 800 A 50 Ka At 600 Vdc With Bare Cable ConnectorCircuit Breaker Compact Nsx800 Tm Dc 2 Poles 800 A 50 ...

View full details
R 31,530.84 - R 31,530.84
R 31,530.84
R 31,530.84 - R 31,530.84
R 31,530.84
Available for backorder
Available for backorder

terminal shield, ComPact NSX100/160/250 DC, upstream and downstream, 3P, 3 poles in series

Schneider Electric
R 1,000.02 - R 1,000.02
R 1,000.02
R 1,000.02 - R 1,000.02
R 1,000.02
Available for backorder

Terminal Shield Compact Nsx100 160 250 Dc Upstream and Downstream 3P 3 Poles In SeriesTerminal Shield Compact Nsx100 160 250 Dc Upstream and Downst...

View full details
R 1,000.02 - R 1,000.02
R 1,000.02
R 1,000.02 - R 1,000.02
R 1,000.02
Available for backorder
Available for backorder

circuit breaker ComPact NSX600S DC, 100 kA at 750 VDC, TM-DC trip unit, 600 A rating, 3 poles

Schneider Electric
R 35,784.08 - R 35,784.08
R 35,784.08
R 35,784.08 - R 35,784.08
R 35,784.08
Available for backorder

Circuit Breaker Compact Nsx600S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 600 A Rating 3 Poles 1Circuit Breaker Compact Nsx600S Dc 100 Ka At 750 Vdc Tm ...

View full details
R 35,784.08 - R 35,784.08
R 35,784.08
R 35,784.08 - R 35,784.08
R 35,784.08
Available for backorder
Available for backorder

circuit breaker ComPact NSX500S DC, 100 kA at 750 VDC, TM-DC trip unit, 500 A rating, 3 poles

Schneider Electric
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder

Circuit Breaker Compact Nsx500S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 500 A Rating 3 PolesCircuit Breaker Compact Nsx500S Dc 100 Ka At 750 Vdc Tm Dc...

View full details
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder
Available for backorder

circuit breaker ComPact NSX400S DC, 100 kA at 750 VDC, TM-DC trip unit, 400 A rating, 3 poles

Schneider Electric
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder

Circuit Breaker Compact Nsx400S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 400 A Rating 3 PolesCircuit Breaker Compact Nsx400S Dc 100 Ka At 750 Vdc Tm Dc...

View full details
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder
Available for backorder

circuit breaker ComPact NSX320S DC, 100 kA at 750 VDC, TM-DC trip unit, 320 A rating, 3 poles

Schneider Electric
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder

Circuit Breaker Compact Nsx320S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 320 A Rating 3 PolesCircuit Breaker Compact Nsx320S Dc 100 Ka At 750 Vdc Tm Dc...

View full details
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder
Available for backorder

circuit breaker ComPact NSX250S DC, 100 kA at 750 VDC, TM-DC trip unit, 250 A rating, 3 poles

Schneider Electric
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder

Circuit Breaker Compact Nsx250S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 250 A Rating 3 PolesCircuit Breaker Compact Nsx250S Dc 100 Ka At 750 Vdc Tm Dc...

View full details
R 29,183.63 - R 29,183.63
R 29,183.63
R 29,183.63 - R 29,183.63
R 29,183.63
Available for backorder
Available for backorder

circuit breaker ComPact NSX600S DC, 100 kA 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
Available for backorder

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

View full details
R 46,519.30 - R 46,519.30
R 46,519.30
R 46,519.30 - R 46,519.30
R 46,519.30
Available for backorder
Available for backorder

circuit breaker ComPact NSX500S DC, 100 kA at 750 VDC, TM-DC trip unit, 500 A rating, 4 poles

Schneider Electric
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder

Circuit Breaker Compact Nsx500S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 500 A Rating 4 PolesCircuit Breaker Compact Nsx500S Dc 100 Ka At 750 Vdc Tm Dc...

View full details
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder
Available for backorder

circuit breaker ComPact NSX400S DC, 100 kA at 750 VDC, TM-DC trip unit, 400 A rating, 4 poles

Schneider Electric
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder

Circuit Breaker Compact Nsx400S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 400 A Rating 4 PolesCircuit Breaker Compact Nsx400S Dc 100 Ka At 750 Vdc Tm Dc...

View full details
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder
Available for backorder

circuit breaker ComPact NSX320S DC, 100 kA at 750 VDC, TM-DC trip unit, 320 A rating, 4 poles

Schneider Electric
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder

Circuit Breaker Compact Nsx320S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 320 A Rating 4 PolesCircuit Breaker Compact Nsx320S Dc 100 Ka At 750 Vdc Tm Dc...

View full details
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder
Available for backorder

circuit breaker ComPact NSX250S DC, 100 kA at 750 VDC, TM-DC trip unit, 250 A rating, 4 poles

Schneider Electric
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder

Circuit Breaker Compact Nsx250S Dc 100 Ka At 750 Vdc Tm Dc Trip Unit 250 A Rating 4 PolesCircuit Breaker Compact Nsx250S Dc 100 Ka At 750 Vdc Tm Dc...

View full details
R 37,938.75 - R 37,938.75
R 37,938.75
R 37,938.75 - R 37,938.75
R 37,938.75
Available for backorder
Available for backorder

circuit breaker ComPact NSX600F DC, 36 kA at 750 VDC,TM-DC trip unit, 600 A rating, 3 poles

Schneider Electric
R 22,090.91 - R 22,090.91
R 22,090.91
R 22,090.91 - R 22,090.91
R 22,090.91
Available for backorder

Circuit Breaker Compact Nsx600F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 600 A Rating 3 PolesCircuit Breaker Compact Nsx600F Dc 36 Ka At 750 Vdc Tm Dc T...

View full details
R 22,090.91 - R 22,090.91
R 22,090.91
R 22,090.91 - R 22,090.91
R 22,090.91
Available for backorder
Available for backorder

circuit breaker ComPact NSX500F DC, 36 kA at 750 VDC, TM-DC trip unit, 500 A rating, 3 poles

Schneider Electric
R 17,130.14 - R 17,130.14
R 17,130.14
R 17,130.14 - R 17,130.14
R 17,130.14
Available for backorder

Circuit Breaker Compact Nsx500F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 500 A Rating 3 PolesCircuit Breaker Compact Nsx500F Dc 36 Ka At 750 Vdc Tm Dc T...

View full details
R 17,130.14 - R 17,130.14
R 17,130.14
R 17,130.14 - R 17,130.14
R 17,130.14
Available for backorder
Available for backorder

circuit breaker ComPact NSX400F DC, 36 kA at 750 VDC, TM-DC trip unit, 400 A rating, 3 poles

Schneider Electric
R 17,130.14 - R 17,130.14
R 17,130.14
R 17,130.14 - R 17,130.14
R 17,130.14
Available for backorder

Circuit Breaker Compact Nsx400F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 400 A Rating 3 PolesCircuit Breaker Compact Nsx400F Dc 36 Ka At 750 Vdc Tm Dc T...

View full details
R 17,130.14 - R 17,130.14
R 17,130.14
R 17,130.14 - R 17,130.14
R 17,130.14
Available for backorder
Available for backorder

circuit breaker ComPact NSX320F DC, 36 kA at 750 VDC, TM-DC trip unit, 320 A rating, 3 poles

Schneider Electric
R 16,512.30 - R 16,512.30
R 16,512.30
R 16,512.30 - R 16,512.30
R 16,512.30
Available for backorder

Circuit Breaker Compact Nsx320F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 320 A Rating 3 PolesCircuit Breaker Compact Nsx320F Dc 36 Ka At 750 Vdc Tm Dc T...

View full details
R 16,512.30 - R 16,512.30
R 16,512.30
R 16,512.30 - R 16,512.30
R 16,512.30
Available for backorder
Available for backorder

circuit breaker ComPact NSX250F DC, 36 kA at 750 VDC, TM-DC trip unit, 250 A rating, 3 poles

Schneider Electric
R 16,512.30 - R 16,512.30
R 16,512.30
R 16,512.30 - R 16,512.30
R 16,512.30
Available for backorder

Circuit Breaker Compact Nsx250F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 250 A Rating 3 PolesCircuit Breaker Compact Nsx250F Dc 36 Ka At 750 Vdc Tm Dc T...

View full details
R 16,512.30 - R 16,512.30
R 16,512.30
R 16,512.30 - R 16,512.30
R 16,512.30
Available for backorder
Available for backorder

circuit breaker ComPact NSX600F DC, 36 kA at 750 VDC,TM-DC trip unit, 600 A rating, 4 poles

Schneider Electric
R 28,718.18 - R 28,718.18
R 28,718.18
R 28,718.18 - R 28,718.18
R 28,718.18
Available for backorder

Circuit Breaker Compact Nsx600F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 600 A Rating 4 PolesCircuit Breaker Compact Nsx600F Dc 36 Ka At 750 Vdc Tm Dc T...

View full details
R 28,718.18 - R 28,718.18
R 28,718.18
R 28,718.18 - R 28,718.18
R 28,718.18
Available for backorder
Available for backorder

circuit breaker ComPact NSX500F DC, 36 kA at 750 VDC, TM-DC trip unit, 500 A rating, 4 poles

Schneider Electric
R 22,269.19 - R 22,269.19
R 22,269.19
R 22,269.19 - R 22,269.19
R 22,269.19
Available for backorder

Circuit Breaker Compact Nsx500F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 500 A Rating 4 PolesCircuit Breaker Compact Nsx500F Dc 36 Ka At 750 Vdc Tm Dc T...

View full details
R 22,269.19 - R 22,269.19
R 22,269.19
R 22,269.19 - R 22,269.19
R 22,269.19
Available for backorder
Available for backorder

circuit breaker ComPact NSX320F DC, 36 kA at 750 VDC, TM-DC trip unit, 320 A rating, 4 poles

Schneider Electric
R 21,466.01 - R 21,466.01
R 21,466.01
R 21,466.01 - R 21,466.01
R 21,466.01
Available for backorder

Circuit Breaker Compact Nsx320F Dc 36 Ka At 750 Vdc Tm Dc Trip Unit 320 A Rating 4 PolesCircuit Breaker Compact Nsx320F Dc 36 Ka At 750 Vdc Tm Dc T...

View full details
R 21,466.01 - R 21,466.01
R 21,466.01
R 21,466.01 - R 21,466.01
R 21,466.01
Available for backorder
Available for backorder

trip unit TM250DC, ComPact NSX 250 DC, thermal magnetic, 250 A rating, 4P 4d

Schneider Electric
R 4,644.31 - R 4,644.31
R 4,644.31
R 4,644.31 - R 4,644.31
R 4,644.31
Available for backorder

R 4,644.31 - R 4,644.31
R 4,644.31
R 4,644.31 - R 4,644.31
R 4,644.31
Available for backorder
Available for backorder

trip unit TM200DC, ComPact NSX 250 DC, thermal magnetic, 200 A rating, 3P 3d

Schneider Electric
R 4,038.56 - R 4,038.56
R 4,038.56
R 4,038.56 - R 4,038.56
R 4,038.56
Available for backorder

R 4,038.56 - R 4,038.56
R 4,038.56
R 4,038.56 - R 4,038.56
R 4,038.56
Available for backorder
Available for backorder

trip unit TM250DC, ComPact NSX 250 DC, thermal magnetic, 250 A rating, 3P 3d

Schneider Electric
R 4,038.56 - R 4,038.56
R 4,038.56
R 4,038.56 - R 4,038.56
R 4,038.56
Available for backorder

R 4,038.56 - R 4,038.56
R 4,038.56
R 4,038.56 - R 4,038.56
R 4,038.56
Available for backorder