Siemens Kit Residual Current Operated Circuit Breaker 20A 1P+N 30MA 4.5KA 5SU13531KK20

The Residual Current Operated Circuit Breaker is located next to the circuit breaker and integrates a magnetic protection with a thermal one and interrupts the electric current if necessary.

The Residual Current Operated Circuit Breaker is, therefore, a system that combines the functions of the circuit breaker with magnetic and thermal characteristics.

 

The Residual Current Operated Circuit Breaker present 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 (for example, more than one household appliance in operation);
• the differential one, typical of the lifesaver, which protects the subject from a current leakage.
  
   

The AC type differential switch intervention is ensured for sinusoidal alternating currents applied suddenly or slowly increasing (CEI EN 61008-1).

Features:
 

• Bticino series
• Voltage 230/240 Vac
• Current In 20A
• Interrupting capacity Icn 4,5kA
• Intervention curve C
• Differential current Idn 30mA
• AC differential type
• Frequency of use 50 Hz
• 2 modules
• 1P+N poles
• Height 90 mm
• Width 36 mm
• Depth 77 mm
• Recessed depth 70 mm
• Any mounting position
• Net weight 271 g
• tightening torque / with screw terminals min 2.5 Nm, max 3 Nm
• Degree of protection IP20, for installation in a distribution board, with connected conductors