产品特点 FEATURES

1 Brand: Siemens (SIRIUS series)

2 Model:3RV2431-4XA10

3 Product type: Circuit breaker designed for transformer protection (size S2)

4 Adjustable overload release current range:49-59A

5 Rated voltage: Up to690V AC (AC-3e rated value maximum:690V)

6 Breaking capacity:

7 At AC400V rated value:65kA (maximum short-circuit current Icu),8kA (operating short-circuit current Ics)

8 At AC690V rated value:4kA (maximum short-circuit current Icu),2kA (operating short-circuit current Ics)

9 Protection functions: Phase failure detection (supported), thermal trip class 10, magnetic short-circuit protection

10 Mechanical service life of main contacts:20000 cycles (typical)

11 Installation: Screw and snap-on mounting to 35mm standard DIN rail (compliant with DIN EN60715)

12 Terminal specifications: Screw-type terminals (top and bottom arrangement), tightening torque for main contacts:3-4.5Nm; conductor cross-sections for main contacts: Solid/stranded (2x1.35mm²,1x5.0mm²)、Finely stranded with core end processing (2x1.25mm²,1x3.5mm²)、AWG cables (18-21 AWG,18-11 AWG)

13 Safety ratings: Front protection class IP20 (per IEC60529), finger-safe touch protection on the front

14 Certifications: Compliant with multiple standards including CE, UL, UKCA, DNV, Lloyd's Register, ABS, RINA, RMRS, VDE

15 Reliability indicators: B10 value (high demand rate per SN31920:5000), T1 value (low demand rate per IEC61508:50 FIT)

使用场景 APPLICATIONS

1 Industrial transformer protection: Suitable for safeguarding transformers in manufacturing plants, processing facilities, and industrial power distribution systems against overload and short-circuit faults

2 Low-voltage distribution cabinets: Integratable into low-voltage distribution cabinets to protect transformer circuits and ensure stable power supply

3 Renewable energy systems: Applicable in solar or wind power installations where transformer circuit protection is essential for system reliability

4 Commercial building electrical networks: Ideal for use in commercial complexes, office buildings, and shopping malls to protect transformer-related circuits

5 Heavy machinery electrical systems: Can be used in the electrical setups of heavy-duty machinery to provide reliable transformer circuit protection

注意事项 PRECAUTIONS

1 Installation guidelines: Mount the device on a 35mm DIN rail (per DIN EN60715) using the specified screw and snap-on method; ensure terminal tightening torque (3-4.5Nm for main contacts) to avoid loose connections and potential hazards

2 Operating environment limits: Do not exceed the allowed ambient temperature range (-20~+60°C during operation, -50~+80°C during transport/storage) or relative humidity (10-96% non-condensing)

3 Maintenance practices: Conduct regular inspections for phase failure; keep the front of the device clean and away from dust/water to maintain IP20 protection

4 Parameter compliance: Use the circuit breaker only within its rated voltage, current, and breaking capacity limits to prevent device damage or safety risks

5 Tool usage: Use a screwdriver with a diameter of5-6mm for terminal tightening to avoid screw stripping or improper connections

6 Safety precautions: Ensure the circuit is fully de-energized before performing installation, maintenance, or repair work to prevent electric shock

3RV24314XA10-PDF数据手册-参考资料