2CCG001740R0001 ABB FS403MK-B10/0.03 RCBO 3P+N Type F 10 A 30 mA

Why Choose the ABB FS403MK-B10/0.03 RCBO?

The ABB FS403MK-B10/0.03 is a 3P+N Type F residual current circuit breaker with overcurrent protection (RCBO) designed for the ABB SMISSLINE TP plug-in system. It combines overload, short-circuit and residual-current protection in one four-pole protective device, simplifying circuit protection within compatible distribution assemblies.

This FS403MK model has a 10 A rated current, B tripping characteristic and 30 mA rated residual operating current. Its short-time-delayed Type F characteristic is designed for circuits with modern electronic and frequency-dependent loads, while the APR design provides increased resistance to unwanted tripping and supports continuity of service.

The FS403MK-B10/0.03 operates at 415 V AC and provides a 10 kA rated short-circuit breaking capacity according to EN 61009-1. Integrated DTI earth-fault indication assists fault identification, while direct connection to the SMISSLINE TP plug-in system supports efficient installation, servicing and circuit replacement.

Key Advantages

• Combines overload, short-circuit and residual-current protection in one RCBO.
• 3P+N configuration with three protected poles.
• 10 A B-curve rating for suitable protected circuits.
• Type F residual-current protection for modern loads incorporating electronic and frequency-dependent equipment.
• 30 mA residual-current sensitivity provides additional protection against direct contact in appropriate installations.
• Short-time-delayed APR characteristic provides increased resistance to unwanted tripping.
• 10 kA rated short-circuit breaking capacity according to EN 61009-1.
• Integrated DTI earth-fault indication supports efficient fault identification.
• Direct integration with the ABB SMISSLINE TP plug-in system supports efficient installation and maintenance.

Key Features

• ABB FS403MK RCBO series.
• 3P+N / four-pole configuration.
• Three protected poles.
• 10 A rated current.
• B tripping characteristic.
• 30 mA rated residual operating current.
• Type F residual-current detection.
• Short-time-delayed APR characteristic.
• 415 V AC rated operational voltage.
• 10 kA rated short-circuit breaking capacity according to EN 61009-1.
• Current-limiting class 3.
• 3 kA surge-current withstand.
• Integrated DTI differential-trip indication.
• Direct plug-in connection to the SMISSLINE TP system.
• Compact four-module format.

Reliable Type F Protection with Increased Immunity

The ABB FS403MK-B10/0.03 combines miniature circuit-breaker and residual-current functions within one device, protecting connected circuits against overload, short-circuit and earth-fault conditions. Its 30 mA residual-current sensitivity also provides additional protection against direct contact in appropriate installations.

The short-time-delayed APR Type F characteristic provides an effective balance between electrical safety and continuity of service. Type F protection is suited to modern loads containing electronic or frequency-dependent components, while increased resistance to transient disturbances helps reduce unwanted tripping.

Typical Applications

• SMISSLINE TP electrical distribution systems.
• Residential and commercial distribution boards.
• Industrial control and auxiliary circuits.
• Circuits supplying loads incorporating electronic or frequency-dependent components.
• Applications where increased resistance to unwanted residual-current tripping is beneficial.
• Circuits requiring combined 10 A B-curve overcurrent and 30 mA Type F residual-current protection.