Schneider Electric RKN4P 32A 300mA Type A Residual Current Circuit Breaker 4P

The Schneider Electric RKN4P 32A 300mA Type A residual current circuit breaker is a high-quality 4-pole protection device engineered to monitor electrical circuits for leakage currents. By detecting imbalances between phase and neutral conductors, this device automatically disconnects the power supply when a fault is identified, thereby preventing potential electrical hazards and protecting connected equipment from damage. Its robust design ensures consistent performance in both residential and industrial electrical distribution networks.

Advantages

This residual current circuit breaker offers superior reliability due to its Type A classification, which allows it to detect both alternating current and pulsating direct current fault components. The 4-pole configuration provides comprehensive coverage for three-phase systems, ensuring that all conductors are monitored simultaneously. Its durable construction meets stringent safety standards, providing long-term operational stability and peace of mind for electrical installations requiring high-sensitivity protection against fire risks and accidental contact.

Suitable for

• Residential electrical distribution boards
• Industrial power supply systems
• Protection of three-phase electrical equipment
• Installations where pulsating DC components may be present

When it may not be suitable

This device is not intended for use in circuits exceeding its rated current of 32A, as this could lead to overheating or nuisance tripping. It is also not suitable for applications requiring a higher sensitivity, such as 10mA or 30mA devices used specifically for direct human life protection in wet areas.

Key specifications

• Rated current: 32A
• Rated residual operating current: 300mA
• Type: A
• Number of poles: 4
• Function: Residual current protection

How to use

The device must be installed by a qualified electrician within a standard distribution board on a DIN rail. Ensure that all line and neutral conductors are correctly connected to the designated terminals according to the wiring diagram provided on the device housing. After installation, the device should be tested using the integrated test button to verify that the mechanical tripping mechanism functions correctly under simulated fault conditions.

What to consider before purchase

• Verify that the 300mA sensitivity is appropriate for your specific fire protection or equipment safety requirements.
• Ensure the 32A rating matches the load requirements of your electrical circuit.
• Confirm that the 4-pole configuration is compatible with your existing three-phase electrical installation.

Usage recommendations

Regularly test the device using the test button at least every six months to ensure the internal mechanism remains operational and free from debris or mechanical sticking.