Industrial and process manufacturing
Main-distribution or critical-feeder protection for manufacturing and process facilities.
Schneider Electric · Air Circuit Breaker
MasterPact NW DC Air Circuit Breaker
DC air circuit breakers for 1000–4000 A applications, selected by voltage, grounding arrangement and L/R time constant.
This page supports range identification and project communication. Confirm the complete catalog number against the nameplate, ratings, poles, mounting, trip or control unit and auxiliary circuits.
- 1000–4000 A
- Rated current
- UL 3P; IEC 3P / 4P
- Poles
- Fixed / drawout
- Mounting
- MicroLogic DC1.0
- Control unit
PRODUCT OVERVIEW
MasterPact NW DC
DC air circuit breakers for 1000–4000 A applications, selected by voltage, grounding arrangement and L/R time constant.
MasterPact NW DC is not selected by current alone. DC voltage, grounding topology, L/R time constant, pole arrangement and N/H performance level must be confirmed for each application.
- Rated current1000–4000 A
- PolesUL 3P; IEC 3P / 4P
- MountingFixed / drawout
- Control unitMicroLogic DC1.0
PLATFORM STRUCTURE AND REVIEW POINTS
- 01
Range architecture
NW10DC (1000 A); NW20DC (2000 A); NW40DC (4000 A)
- 02
Breaking and withstand performance
NW10DC: N / H; breaking capacity depends on voltage and L/R time constant；NW20DC: N / H; breaking capacity depends on voltage and L/R time constant；NW40DC: N / H; up to 100 kA at 500 Vdc under specified conditions
- 03
Poles and mounting
UL 3P; IEC 3P / 4P；Fixed / drawout
- 04
Trip and control systems
MicroLogic DC1.0
TECHNICAL OVERVIEW
- Product range
- MasterPact NW DC
- Rated current
- 1000–4000 A
- Poles
- UL 3P; IEC 3P / 4P
- Mounting
- Fixed / drawout
- Control unit
- MicroLogic DC1.0
- Frames / branches
- NW10DC (1000 A); NW20DC (2000 A); NW40DC (4000 A)
INQUIRY CHECKLIST
- Complete designation and nameplate
- System voltage and frequency
- Rated current and breaking duty
- Poles and connection arrangement
- Fixed or drawout mounting
- Trip or control unit
- Auxiliary voltage and accessories
- Quantity and application duty
APPLICATIONS
Commercial buildings and data centers
Low-voltage distribution where uptime and maintenance efficiency are important.
Power and public infrastructure
Distribution applications in energy, water, transport and large public facilities.
Renewable energy and infrastructure
Confirm applicability against AC or DC system data, grounding arrangement and project duty.
RECOMMENDED SERIES RANGES
NW10DC
1000 A
- Breaking / withstand
- N / H; breaking capacity depends on voltage and L/R time constant
- Poles
- UL 3P; IEC 3P / 4P
- Mounting
- Fixed / drawout
- Trip / control unit
- MicroLogic DC1.0
NW20DC
2000 A
- Breaking / withstand
- N / H; breaking capacity depends on voltage and L/R time constant
- Poles
- UL 3P; IEC 3P / 4P
- Mounting
- Fixed / drawout
- Trip / control unit
- MicroLogic DC1.0
NW40DC
4000 A
- Breaking / withstand
- N / H; up to 100 kA at 500 Vdc under specified conditions
- Poles
- UL 3P; IEC 3P / 4P
- Mounting
- Fixed / drawout
- Trip / control unit
- MicroLogic DC1.0
These values identify the range. Confirm final configuration and full ordering information against the nameplate, system data, mounting, cradle interfaces and auxiliary circuits.
