Chint Residual Current Operated Circuit Breaker NB1L2 40A 1P+N 6KA 30MA AC 2 Modules 203299
Chint NB1L2 Residual Current Operated Circuit Breaker with the following characteristics:
- Number of Poles: 1P+N
- Rated current: 40A
- Type: AC
- Curve C
- Rated differential current: 30 mA
- Rated breaking capacity: 6 kA
- Rated voltage: 230 Vac
- Number of Modules: 2
- Degree of protection: IP20

Tax included
The Residual Current Operated Circuit Breaker is located next to the circuit breaker and integrates a magnetic protection to a thermal one, and in case of need it interrupts the electric current. The thermal-magnetic circuit breaker is, therefore, a system that combines the functions of the circuit breaker with magnetic and thermal features.
The Residual Current Operated Circuit Breaker in the electrical system integrates three different protections:
- The magnetic one for short circuits that can endanger an entire building with the danger of fire
- The thermal one for overloads in the supply of electricity (for example, more than one appliance in operation)
- The differential one proper to the earth leakage circuit breaker, which protects the subject from a current leakage
The AC-type Residual Current Operated Circuit Breaker the tripping is ensured for suddenly or slowly increasing applied sine-wave alternating differential currents (IEC EN 61008-1).
NB1L2 series 6 kA magnetothermal/differential circuit breakers. Particularly suitable for line protection against overloads and short circuits, as well as against direct contacts. Intended for civil, tertiary and industrial applications.
Features:
- Reference standard: IEC/EN 61009-1
- Number of Poles: 1P+N
- Rated current: 40 A
- Tripping curve: C
- Rated voltage: 230 Vac
- Rated frequency: 50/60 Hz
- Isolation voltage: 500 Vac
- Impulse voltage: 6 kV
- Rated breaking capacity: 6 kA
- Extreme breaking capacity: 10 kA
- Rated service interrupting capacity: 6 kA
- Power Dissipation: 10.5 W
- Number of DIN modules (1 DIN = 18 mm): 2
- Degree of protection: IP20
- Dimensions: 86x36x77 mm (HxWxD)
Data sheet
- Voltage: 230VAC
- Modules: 2
- Poles: 1P+N
- Curve: C
- Breaking capacity: 6KA
- RCD Type: AC
- Differential current : 0.03A
- Degree of protection: IP20
- Amps: 40A
- Circuit Protections: RCBO