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Rapid Online - Rapid Electronics Ltd.£45.00Visit shop Siemens 5SV33446KL rccb A 4-pin 40A 0.03A 400V fi-protection Switch
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The Siemens 5SV3344-6 is a 4-pole Residual Current Circuit Breaker (RCCB) designed for robust personnel and fire protection in electrical installations. It offers highly reliable performance and excellent quality, making it suitable for demanding environments. A key benefit is its surge current withstand capability, protecting against transient overvoltages. However, it is designed for DIN rail mounting, which might limit placement options in some retrofitting scenarios.
| Series | Sentron |
|---|---|
| Model Part Number | 5SV3344-6 |
| Brand | Siemens |
A circuit breaker primarily protects against overcurrents (overloads and short circuits), while an RCCB specifically detects and interrupts residual (earth leakage) currents to protect against electric shock.
Type A RCCBs are sensitive to both sinusoidal AC residual currents and pulsating DC residual currents. This makes them suitable for most household appliances.
No, this is a 4-pole device designed for three-phase systems. Siemens offers 2-pole versions in other product series if required.
The 30mA rating is the threshold for residual current that will cause the RCCB to trip. This level is considered safe for protecting persons from dangerous electric shock.
This indicates that the RCCB can safely interrupt a fault current of up to 10,000 Amperes without being damaged, providing protection against severe short circuits.
It is recommended to test the functionality of an RCCB monthly using the built-in test button, and to have it professionally inspected periodically according to local regulations.
The Siemens 5SV3344-6 operates reliably in ambient temperatures ranging from -25 °C to +45 °C.
Check for insulation faults in the connected wiring or appliances. Test individual circuits by disconnecting loads. Ensure the ambient temperature is within the operational range (-25 to +45 °C).
Verify that the RCCB is correctly wired, especially the neutral connection. Ensure the fault current injected is sufficient to exceed the 30mA rating. If the issue persists, the device may be faulty and require replacement.
Immediately de-energize the circuit and replace the damaged RCCB. Do not attempt to repair a physically damaged device.
Setup: The 5SV3344-6 is designed for mounting on a standard 35mm DIN rail. Ensure the rail is securely fastened and the breaker is firmly clipped into place. Connect the incoming power conductors to the designated terminals and the outgoing load conductors to the corresponding terminals. Always follow local electrical codes and regulations during installation.
Compatibility: This RCCB is compatible with standard 400V AC electrical systems operating at 50 Hz. It is designed for Type A residual currents, meaning it responds to AC and pulsating DC residual currents. Ensure the rated current (40A) and rated fault current (30mA) are appropriate for the circuit being protected.
Care: The enclosure is rated IP20, meaning it is protected against solid objects larger than 12.5mm but offers no protection against water. It should be installed in an enclosure or distribution board that provides adequate protection against dust and moisture. Regular visual inspection for damage is recommended. Cleaning should only be done with a dry cloth; avoid solvents or liquids.
