Siemens 5SV33443 SENTRON RCCB 4-Pole 40A 30mA Type A 400V

The Siemens 5SV33443 is a high-quality residual current circuit breaker (RCCB) from the SENTRON series, designed for reliable protection against electric shock and fire hazards. With 4 poles, a rated current of 40 A, and a rated residual current of 30 mA, it ensures safety in residential, commercial, and industrial installations. This Type A device detects sinusoidal AC and pulsating DC residual currents, making it suitable for modern electrical systems with electronic loads.

Advantages

Compact 4-module design saves space on DIN rails. High breaking capacity of 10 kA ensures robust fault handling. Wide operating temperature range (-25 to +45 °C) allows use in various environments. Screw terminals accommodate conductors up to 35 mm² for easy installation.

Suitable for

• Residential and commercial distribution boards
• Protection of circuits supplying electronic equipment
• Systems requiring Type A residual current protection

Key specifications

• Product Type: Residual Current Circuit Breaker (RCCB)
• Series: SENTRON
• Number of Poles: 4-pole (3P+N)
• Rated Current (In): 40 A
• Rated Residual Current (IΔn): 30 mA
• Rated Voltage (Un): 400 V AC
• Type of Residual Current: Type A
• Rated Frequency: 50/60 Hz
• Rated Short-Circuit Current (Inc): 10 kA
• Mounting Type: DIN rail
• Module Width: 4 modules
• Degree of Protection (Terminals): IP20
• Operating Temperature Range: -25 to +45 °C
• Storage Temperature Range: -40 to +75 °C
• Electrical Endurance: 10,000 operating cycles
• Mechanical Endurance: 20,000 operating cycles
• Terminal Type: Screw terminals
• Terminal Capacity (Solid/Stranded): 0.75 - 35 mm²
• Standards: IEC 61008-1

Recommendations

For optimal safety, pair this RCCB with a compatible MCB or RCBO from the Siemens SENTRON range. Always follow local electrical regulations and installation guidelines.