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Tameson UK£174.49Visit shop Siemens 5Sm2 Residual Current Device - 5Sm23426
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This Siemens 5SM2342-6 Residual Current Circuit Breaker (RCCB) is designed for electrical installations requiring protection against earth leakage faults. It is ideal for residential, commercial, and industrial applications where safety and reliable power distribution are paramount. A key benefit is its Type A functionality, offering protection against AC and pulsating DC fault currents. However, it is crucial to ensure the overall system design accounts for the 10kA short-circuit resistance rating.
| Series | 5SM2 |
|---|---|
| Model Part Number | 5SM2342-6 |
| Brand | Siemens |
This is a Type A residual current device, meaning it protects against AC fault currents and pulsating DC fault currents.
The device can connect conductors with a cross-section ranging from 1.5mm² to 25mm².
It is recommended to test the functionality of the device using its test button at least once a month.
It means the device can withstand and interrupt a short-circuit current of up to 10,000 Amperes without being damaged.
While it is a 4-pole device, it can be used in single-phase systems by appropriately connecting the poles for phase and neutral, provided the system voltage matches.
Type AC RCDs only detect sinusoidal AC residual currents. Type A RCDs offer enhanced protection by detecting AC residual currents as well as pulsating DC residual currents, which can be generated by electronic devices.
Check for a residual current in the circuit. This could be due to a faulty appliance or incorrect wiring. Verify all connections and test individual circuits/appliances if necessary. Ensure proper phase and neutral configuration for 4-pole operation.
The device may be faulty or the wiring may be incorrect. Ensure power is applied and the device is correctly wired. If the issue persists after checking wiring, the device may need replacement.
Intermittent tripping can be caused by minor leakage currents or RFI from connected equipment. Investigate appliances connected to the circuit, check insulation resistance of the circuit, or consider a device with a higher trip threshold if nuisance tripping is frequent and the cause cannot be isolated.
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