The CHINT NB3LEG RCBO is a compact and reliable solution for combined overcurrent and residual current protection. Designed with a 1P+N configuration and single-module width, it saves space while delivering high-performance safety for modern electrical installations.

With a 30mA sensitivity and 6kA breaking capacity, this RCBO ensures effective protection against overloads, short circuits, and earth leakage faults. The C-curve tripping characteristic allows it to handle moderate inrush currents, making it suitable for a wide range of applications. 

The Type A RCD functionality provides enhanced protection by detecting both AC and pulsating DC residual currents, making it ideal for circuits with electronic devices.

Technical Specification:

Complies with IEC/EN 61009-1 safety standard for RCBOs. Ensures the device provides reliable protection and meets strict performance and safety requirements for electrical safety.

Rated Current (In): 20A
Poles: 1P+N
Tripping Curve: C-Curve
Leakage Detection Type: Type A (AC + pulsing DC)
Rated Voltage (Ue): 240V AC
Rated Sensitivity (I△n): 30mA
Rated Insulation Voltage (Ui): 500V
Rated Short-circuit Capacity (Icn): 6kA
Mounting Method: 35 mm DIN rail (EN 60715), quick clip-on design.
Dimensions (mm): 98 H x 18 W x 77 D

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