Industrial and process manufacturing
Main-distribution or critical-feeder protection for manufacturing and process facilities.
Schneider Electric · Air Circuit Breaker
MasterPact NW Air Circuit Breaker
High-current ACB family covering 800–6300 A in two principal frame sizes.
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.
- 800–6300 A
- Rated current
- 3P / 4P
- Poles
- Fixed / drawout
- Mounting
- MicroLogic 2.0 / 5.0 / 6.0; A / P / H families
- Control units
PRODUCT OVERVIEW
MasterPact NW
High-current ACB family covering 800–6300 A in two principal frame sizes.
MasterPact NW covers standard and high-breaking applications. Current code, performance class, pole count, mounting form and MicroLogic unit should all be read from the complete designation or nameplate.
- Rated current800–6300 A
- Poles3P / 4P
- MountingFixed / drawout
- Control unitsMicroLogic 2.0 / 5.0 / 6.0; A / P / H families
PLATFORM STRUCTURE AND REVIEW POINTS
- 01
Range architecture
NW08–NW40 (800–4000 A); NW40b / NW50 / NW63 (4000–6300 A)
- 02
Breaking and withstand performance
NW08–NW40: N1 / H1 / H2 / H3 / L1 / H10; up to 150 kA at 415/440 V, rating-dependent；NW40b / NW50 / NW63: H1 / H2; up to 150 kA at 415/440 V
- 03
Poles and mounting
3P / 4P；Fixed / drawout
- 04
Trip and control systems
MicroLogic 2.0 / 5.0 / 6.0; A / P / H families
TECHNICAL OVERVIEW
- Product range
- MasterPact NW
- Rated current
- 800–6300 A
- Poles
- 3P / 4P
- Mounting
- Fixed / drawout
- Control units
- MicroLogic 2.0 / 5.0 / 6.0; A / P / H families
- Frames / branches
- NW08–NW40 (800–4000 A); NW40b / NW50 / NW63 (4000–6300 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
NW08–NW40
800–4000 A
- Breaking / withstand
- N1 / H1 / H2 / H3 / L1 / H10; up to 150 kA at 415/440 V, rating-dependent
- Poles
- 3P / 4P
- Mounting
- Fixed / drawout
- Trip / control unit
- MicroLogic 2.0 / 5.0 / 6.0; A / P / H families
NW40b / NW50 / NW63
4000–6300 A
- Breaking / withstand
- H1 / H2; up to 150 kA at 415/440 V
- Poles
- 3P / 4P
- Mounting
- Fixed / drawout
- Trip / control unit
- MicroLogic 2.0 / 5.0 / 6.0; A / P / H families
These values identify the range. Confirm final configuration and full ordering information against the nameplate, system data, mounting, cradle interfaces and auxiliary circuits.
