Industrial and process manufacturing
Main-distribution or critical-feeder protection for manufacturing and process facilities.
Schneider Electric · Air Circuit Breaker
MasterPact NT / NW Navy Air Circuit Breaker
Marine-duty NT and NW air circuit-breaker families covering 630–4000 A.
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.
- 630–4000 A
- Rated current
- 3P / 4P
- Poles
- Fixed / drawout
- Mounting
- MicroLogic; project-specific verification required
- Control units
PRODUCT OVERVIEW
MasterPact NT / NW Navy
Marine-duty NT and NW air circuit-breaker families covering 630–4000 A.
The Navy family uses NT and NW frame concepts with project-specific marine certification requirements. Final selection depends on the vessel specification, classification requirements and the complete circuit-breaker designation.
- Rated current630–4000 A
- Poles3P / 4P
- MountingFixed / drawout
- Control unitsMicroLogic; project-specific verification required
PLATFORM STRUCTURE AND REVIEW POINTS
- 01
Range architecture
NT Navy (630–1600 A); NW Navy (800–4000 A)
- 02
Breaking and withstand performance
NT Navy: Per marine classification and project configuration；NW Navy: Up to 150 kA at 440 Vac for applicable high-performance configurations
- 03
Poles and mounting
3P / 4P；Fixed / drawout
- 04
Trip and control systems
MicroLogic
TECHNICAL OVERVIEW
- Product range
- MasterPact NT / NW Navy
- Rated current
- 630–4000 A
- Poles
- 3P / 4P
- Mounting
- Fixed / drawout
- Control units
- MicroLogic; project-specific verification required
- Frames / branches
- NT Navy (630–1600 A); NW Navy (800–4000 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
NT Navy
630–1600 A
- Breaking / withstand
- Per marine classification and project configuration
- Poles
- 3P / 4P
- Mounting
- Fixed / drawout
- Trip / control unit
- MicroLogic
NW Navy
800–4000 A
- Breaking / withstand
- Up to 150 kA at 440 Vac for applicable high-performance configurations
- Poles
- 3P / 4P
- Mounting
- Fixed / drawout
- Trip / control unit
- MicroLogic
These values identify the range. Confirm final configuration and full ordering information against the nameplate, system data, mounting, cradle interfaces and auxiliary circuits.
