The 3VA2063-5HN42-0AA0 is a 4-pole molded case circuit breaker from the Siemens SENTRON 3VA2 series (IEC Frame 100), designed for reliable line and system protection in industrial low-voltage distribution. Equipped with the ETU350 electronic trip unit, it provides essential LSI protection – adjustable overload (L), short-time short-circuit (S), and instantaneous (I) – with neutral conductor protection configurable OFF or 100% of the rated current. Note: This model does not include communication or ground-fault monitoring functions, making it a cost-effective solution for standard protection applications.

Key Protection & Functionality

• ETU350 electronic trip unit with LSI protection: Ir = 25…63 A (I²t characteristic, tr = 0.5…17 s adjustable).
• Short-circuit protection Isd = 1.5…10 × Ir (tsd = 0.0001…0.4 s). Unlike the ETU550 (Isd based on In), ETU350 Isd is based on Ir for simplified coordination.
• Instantaneous protection Ii = 12 × In (756 A).
• Neutral conductor protection: adjustable OFF or 100% of In (no intermediate settings).
• No communication function – suitable for standalone installations without remote monitoring.
• No ground-fault monitoring – designed for systems where earth leakage is detected externally or not required.
• Solid-state overcurrent trip unit with integrated display for measured values.

Technical Specifications

• Rated Insulation Voltage Ui: 800 V AC
• Rated Operating Voltage Ue: 690 V AC
• Breaking Capacity Icu: 240 V / 85 kA, 415 V / 55 kA, 440 V / 55 kA, 500 V / 36 kA, 690 V / 2 kA
• Service Breaking Capacity Ics: 240 V / 85 kA, 415 V / 55 kA, 440 V / 55 kA, 500 V / 36 kA, 690 V / 2 kA
• Short-Circuit Making Capacity Icm: 240 V / 187 kA, 415 V / 121 kA, 440 V / 121 kA, 500 V / 75.6 kA, 690 V / 3 kA
• Mechanical Life: 25,000 operations
• Electrical Life: 15,000 operations (at 415 V AC-1), 10,500 operations (at 690 V AC-1)
• Power Loss: 5.4 W total (1.8 W per pole at rated current, hot operating state)
• Operating Temperature: 40 °C to 70 °C (full 63 A rating throughout range)
• Degree of Protection: IP40 (front face, with connected conductors)
• Net Weight: 2.708 kg
• Standard: IEC/EN 60947-2
• Country of Origin: Czech Republic

Installation & Applications

• Mounting: Fixed on standard 35 mm DIN rail.
• Terminal: Nut keeper kit for secure high-current lug or busbar connections.
• Typical Applications: Low-voltage main distribution boards, motor control centers, and infrastructure systems where 4-pole switching with basic neutral protection is required, and communication/G-fault monitoring are not needed.