Chint Residual Current Operated Circuit Breaker 300mA – NL1

NL1 Residual Current Operated Circuit Breaker without Over-current Protection (Magnetic)

Function

• Control electric circuits.
• Protect people against indirect contacts and additional protection against direct contacts.
• Protect installations against fire hazard due to insulation faults.
• Residual current circuit breakers are used in housing, tertiary sector and industry.

Selection

• Detectable wave form
• AC class
• Tripping is ensured for slowly increasing sinusoidal AC residual currents.
• A class
• Tripping is ensured for sinusoidal AC residual currents and for pulsed DC residual currents, whether applied suddenly or increasing slowly.
• S, G/SI class
• Tripping is ensured not only for sinusoidal AC residual currents but also for pulsed DC residual currents whether applied suddenly or increasing slowly. S, G/SI type with filters against spurious tripping caused by harmonics and transient surges.
• With the impact of 8/20us surge 3000A, this high immunity
• RCCB will still be in stable status.