The thermal-magnetic circuit breaker is located next to the circuit breaker and combines magnetic and thermal protection and, if necessary, interrupts the electrical current.

The thermal-magnetic circuit breaker is, therefore, a system that combines the functions of the circuit breaker with magnetic and thermal characteristics.

The thermal-magnetic differential switch in the electrical system integrates three different protections:

• the magnetic one for short circuits that can put an entire building at risk of fire;
• the thermal one for overloads in the supply of electrical energy (e.g. more than one household appliance in operation);
• the differential which protects the subject from a current leakage.
  
  

The C curve, trip threshold from 5 to 10 times In, for application of ohmic-inductive circuits with medium inrush currents. It is widely used in domestic installations.

The AC residual current circuit breaker type the tripping is ensured for suddenly or slowly increasing applied sinusoidal alternating currents (CEI EN 61008-1).

Features:

• Hager series
• Rated voltage AC 230/400 Vac
• Current In 40A
• Interrupting capacity Icn 6kA
• Intervention curve C
• Rated differential current 30 mA
• Dielectric constant 2 kV
• Rated insulation voltage 500V
• Rated fault withstand current 4 kV
• 4 modules
• 4P
• Rated frequency 50 Hz
• Type of protection AC differential
• Depth 70 mm
• Height 84 mm
• Width 71 mm
• Type of connection screw terminal
• Tightening torque 2 Nm
• Degree of protection IP20
• DIN rail mounting method

• Tropicalised design for all climates
• Operating temperature -25...40 °C