Hager 4P 40A 300MA B Magnetothermal Residual Current Circuit Breaker 4 Modules CFB640E
Hager magneto-thermal differential circuit breaker with the following characteristics:
- Rated operating voltage: 230 - 400V
- Type of supply voltage: AC
- Number of poles: 4P
- Rated current: 40 amperes
- Rated differential current: 300 mA
- Type B
- Number of modules: 4

Hager 4P 40A 300MA B Magnetothermal Residual Current Circuit Breaker 4 Modules CFB640E
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Frequently bought together
The thermal-magnetic 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 magneto-thermal differential switch 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 power leakage
The AC type differential circuit breaker the tripping is ensured for suddenly or slowly increasing applied sine differential alternating currents (IEC EN 61008-1).
Features:
- Fixing mode: DIN rail type O (symmetrical)
- Type of supply voltage: AC
- Rated frequency: 50 Hz
- Rated insulation voltage: 400 V
- Maximum utilization voltage: 440 V
- Rated fault holding current: 4000 V
- Total power dissipation: 6.77 W
- High connection type for modular products: screw terminal
- High connection type for modular products: plastic
- Low connection type for modular products: plastic
- Low connection type for modular products: quickconnect clamp
- Top removal for modular fixtures
- Bottom removal for modular products
- Enclosure degree of protection: IP20
- Type of differential protection: B
- Operating temperature: -25/+70 °C
- Pollution degree: 2
- Altitude: 2000m
- Storage/transportation temperature: -55/+70 °C
- Product depth: 70mm
- Product height: 85 mm
- Product width: 72 mm
Data sheet
- Voltage:
- 230/400VAC
- Modules:
- 4
- Poles:
- 4P
- RCD Type:
- B
- Differential current :
- 0.3A
- Amps:
- 40A
- Circuit Protections:
- RCBO