Siemens Residual Current Circuit Breaker with Overload Protection, 6A, 4-Pole, 300 mA, 400V AC, Type B, 6kA 5SU1646-6FP06

The Siemens 5SU1646-6FP06 Residual Current Circuit Breaker with Overload Protection is engineered for safeguarding modern electrical systems, providing a reliable solution to protect circuits from overload, short circuits, and earth leakage currents. Its 6A current rating and 4-pole Type B configuration make it well-suited for demanding three-phase installations in commercial, industrial, and critical infrastructure environments.

This RCBO features a precise 300 mA trip sensitivity, offering responsive detection and disconnection during imbalance events, thereby minimizing the risk of shock hazards and equipment damage. With a breaking capacity of 6kA and rated for 400V AC, the device ensures robust performance even in high-load applications. Its lever reset actuator and screw terminal design support straightforward installation and routine maintenance.

Installation is efficient thanks to DIN rail mounting, and the RCBO's compact form factor (85x72x72 mm) enables dense allocation within control panels. The unit is compliant with CE and EAC safety standards, reflecting Siemens’ commitment to quality and reliability. Additional product features include halogen and silicon-free construction, making it suitable for environmentally-sensitive industrial and laboratory settings.

Integrates overload, short circuit, and earth leakage protection for comprehensive electrical safety. 6A current rating suitable for numerous low-current branch circuit applications. 300 mA trip sensitivity is optimal for selective protection without nuisance interruptions.

High 6kA breaking capacity for robust operation in dynamic electrical environments. Mounts easily on standard DIN rails for straightforward panel assembly or retrofits. Lever actuator provides quick and easy reset functionality after tripping.

Meets international safety standards, supporting industrial, laboratory, building management, and power distribution use cases.

Common applications include industrial distribution boards, commercial facilities, laboratories, building infrastructure, and critical safety circuits where both overload and earth fault protection are mandatory. Its design helps ensure continuous operation and enhanced safety for personnel and equipment.

This RCBO belongs to Siemens SENTRON series, recognized for durability and extended service life. Country of origin is Portugal, further supporting quality assurance. For professionals seeking reliable earth leakage and overload protection integrated in one device, the 5SU1646-6FP06 is an optimal choice.

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