NB5LE Residual Current Operated Circuit Breaker with Over-current Protection (Electronic)
NB5LE-63 /B residual current operated circuit breaker is suitable for AC 50/60 Hz, rated voltage to 400V and rated current to 63A, which plays the role of overload, short circuit and residual current protection, and can also be used for infrequent on-off of lines under normal conditions.
NB5LE-63 /B residual current operated circuit breaker is suitable for AC 50/60 Hz, rated voltage to 400V and rated current to 63A, which plays the role of overload, short circuit and residual current protection, and can also be used for infrequent on-off of lines under normal conditions.
Features:
Comprehensive Protection:
• B-type leakage protection covers AC/A curves, pulsating DC, and smooth DC curve
High Reliability:
• Supports up to 63A rated current with a 10kA high breaking capacity
Efficient Operation & Maintenance:
• Leakage indicator lever allows quick fault identification
Application Scenario:
•New Energy→EV Charging Application Scenarios→NB5LE B Type
Learn how surge protection and electrical protection strategies support small business power needs, reduce downtime, and keep equipment reliable as demand grows.
Learn how smart maintenance strategies protect electrical safety across distributed facilities, reducing downtime and keeping multi-site operations predictable and reliable.
Grid automation allows for better management of distribution systems and your network. See how automated distribution systems improve outage management.
Learn why IEC standards and electrical safety certification matter for high-voltage equipment, improving reliability, protection accuracy, and risk control across power networks.
Ensure reliable airport power with robust critical power systems and layered resilience. Explore how redundancy, monitoring, and design keep aviation operations running smoothly.
Designing an IEC switchboard is necessary for every operation, whether industrial or commercial. Acquiring IEC 61439 design verification for MDBs is important.
Great building energy management makes use of smart meters to gauge energy consumption. Learn why smart metering is a sign of good energy monitoring practice.
Solve nuisance tripping problems for good. Our guide helps you diagnose why your breaker trips on startup and shows how to select the correct B, C, or D curve for motors, pumps, and other loads.