Why Choose the Chint NB310L-3N-C32 RCBO?
The Chint NB310L-3N-C32 is a dependable 3P+N RCBO (Residual Current Circuit Breaker with Overcurrent Protection) designed to protect three-phase electrical circuits against earth leakage, overload and short circuit faults. By combining residual current protection and overcurrent protection in one compact DIN rail mounted unit, it helps improve electrical safety while reducing space requirements inside distribution boards and control panels.
As part of the Chint NB310L Series, this RCBO features a 32A rated current, C Curve tripping characteristic and Type A residual current protection. It is suitable for circuits with moderate inrush currents, including machinery supplies, control equipment, commercial distribution boards and industrial low-voltage installations.
With a 230/400V AC rated voltage, 30mA residual operating current and 6kA short circuit breaking capacity, the NB310L-3N-C32 provides reliable circuit protection for modern three-phase electrical systems where safety, compliance and compact panel design are essential.
Key Advantages
- Combined RCBO protection against earth leakage, overload and short circuit faults.
- 32A rated current for three-phase distribution and equipment circuits.
- C Curve trip characteristic for mixed resistive and inductive loads.
- Type A residual current detection for AC and pulsating DC leakage currents.
- 30mA sensitivity provides additional protection against electric shock.
- Compact 3P+N DIN rail mounted design for efficient distribution board layouts.
Key Features
- Chint NB310L Series RCBO.
- 32A rated current.
- 3P+N pole configuration.
- C Curve magnetic trip characteristic.
- Type A residual current protection.
- 30mA rated residual operating current.
- 6kA short circuit breaking capacity.
- 35mm DIN rail mounting for quick installation.
Reliable Protection for Three Phase Circuits
The Chint NB310L-3N-C32 helps protect personnel, cables and connected equipment by automatically disconnecting the circuit when earth leakage, overload or short circuit conditions are detected. This makes it a practical choice for electricians, panel builders and industrial engineers working with compact three-phase distribution systems.
Its Type A residual current protection makes it suitable for modern installations containing electronic equipment, power supplies, automation components and control circuits where pulsating DC residual currents may occur alongside standard AC leakage currents.
Typical Applications
- Commercial electrical distribution boards.
- Control panels and automation systems.
- Three-phase machinery circuits.
- Building services and infrastructure installations.
- Industrial low-voltage power distribution.
- Circuits requiring combined RCBO protection.
