2CCG001770R0001 ABB FS402MKC200.03 FS402MK-C20/0.03 RCBO 1P+N Type F 20 A 30 mA

Why Choose the ABB FS402MKC200.03 RCBO?

The ABB FS402MKC200.03, type designation FS402MK-C20/0.03, is a 1P+N 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 compact device, with a protected neutral for dependable single-phase circuit protection.

This FS402MK series RCBO has a 20 A rated current, C tripping characteristic and 30 mA rated residual operating current. Its Type F AP-R high-immunity characteristic provides increased resistance to unwanted tripping and is suitable for circuits containing modern electronic, resistive and inductive loads.

With a 240/415 V AC rated operational voltage and 10 kA rated short-circuit breaking capacity according to IEC/EN 61009-1, the FS402MK-C20/0.03 provides robust combined circuit protection. ABB's integrated DTI earth-fault indicator helps identify differential trips, while the SMISSLINE TP plug-in format supports efficient installation, replacement and maintenance.

Key Advantages

• Combines residual-current, overload and short-circuit protection in one device.
• 20 A rated current with C tripping characteristic.
• 30 mA residual-current sensitivity for additional protection against electric shock.
• Type F AP-R high-immunity protection helps reduce unwanted tripping with modern electronic loads.
• 10 kA Icn breaking capacity according to IEC/EN 61009-1.
• 1P+N configuration with protected neutral.
• DTI earth-fault indication assists fault identification and maintenance.
• Direct plug-in connection to the ABB SMISSLINE TP system.

Key Features

• ABB FS402MK series RCBO.
• 1P+N configuration with protected neutral.
• 20 A rated current.
• C tripping characteristic.
• 30 mA rated residual operating current.
• Type F AP-R high-immunity residual-current characteristic.
• 240/415 V AC rated operational voltage.
• 10 kA Icn rated breaking capacity according to IEC/EN 61009-1.
• 15 kA Icu ultimate short-circuit breaking capacity according to IEC/EN 60947-2.
• 7.5 kA Ics service short-circuit breaking capacity.
• 500 V rated insulation voltage.
• 50/60 Hz rated frequency.
• IP20 protection rating.
• DTI earth-fault indicator and contact position indication.
• Three-module plug-in format for the SMISSLINE TP system.

Reliable Protection for SMISSLINE Distribution Systems

The ABB FS402MK-C20/0.03 combines miniature circuit-breaker and residual-current protective functions within one device. It protects connected circuits against overload and short-circuit currents while detecting residual currents, providing fault protection and 30 mA additional protection against electric shock.

Its Type F AP-R high-immunity characteristic is particularly suitable for circuits containing electronic equipment and provides increased resistance to transient disturbances that can otherwise cause unwanted operation. The SMISSLINE TP plug-in architecture simplifies installation and maintenance, while the DTI indicator provides a separate visual indication when the RCBO has operated because of a residual-current fault.

Typical Applications

• ABB SMISSLINE TP electrical distribution boards.
• Single-phase final circuits requiring combined RCBO protection.
• Industrial control and power distribution panels.
• Commercial and building electrical distribution.
• Circuits requiring 20 A C-curve overcurrent protection.
• Circuits requiring 30 mA Type F residual-current protection.
• Circuits supplying modern electronic, resistive and inductive loads.