2CSR272001R1255 ABB DS202MACB250.03 DS202 M AC-B25/0.03 2P Type AC RCBO 25A 30mA 10kA

Why Choose the ABB DS202MACB250.03 RCBO?

The ABB DS202MACB250.03 is a 2-pole residual current circuit breaker with overcurrent protection (RCBO) designed to combine overload, short-circuit and residual earth-fault protection within a single modular device. Part of ABB's DS200 / DSH200 RCBO portfolio, it provides coordinated circuit protection while reducing the need for separate overcurrent and residual-current protective devices.

This model has a 25 A rated current, B tripping characteristic and Type AC residual-current characteristic with 30 mA sensitivity. Type AC protection responds to sinusoidal alternating residual currents, while the B characteristic is suited to appropriately designed circuits with relatively low starting and inrush currents.

The DS202MACB250.03 provides a 10 kA rated short-circuit breaking capacity, supporting use in installations where robust fault-current interruption is required. Its 2-pole configuration provides simultaneous switching of both conductors, making it a practical protection solution for suitable single-phase final and distribution circuits.

Key Advantages

• Combines residual-current, overload and short-circuit protection in one RCBO.
• 25 A rated current for appropriately rated circuits and loads.
• B tripping characteristic for circuits with relatively low starting and inrush currents.
• Type AC residual-current characteristic for sinusoidal alternating residual currents.
• 30 mA rated residual operating current.
• 10 kA breaking capacity for robust short-circuit protection.
• 2-pole configuration provides switching of both circuit conductors.
• DIN-rail modular construction supports straightforward integration into distribution equipment.

Key Features

• ABB DS202 M RCBO.
• 2-pole configuration.
• 25 A rated current.
• B tripping characteristic.
• Type AC residual-current protection.
• 30 mA rated residual operating current.
• 10 kA rated short-circuit breaking capacity.
• Combined overcurrent and residual-current protection.
• Modular DIN-rail construction for electrical distribution boards.

Reliable Combined Circuit and Residual-Current Protection

The ABB DS202MACB250.03 integrates the functions of an overcurrent circuit breaker and a residual-current protective device. Its overcurrent section protects against overload and short-circuit conditions, while the residual-current section detects sinusoidal AC leakage currents and disconnects the circuit when the specified residual-current threshold is reached.

Its 30 mA sensitivity provides a high level of residual-current protection, while the 10 kA breaking capacity enables the device to interrupt substantial prospective short-circuit currents within its specified application conditions. The B characteristic makes the RCBO particularly suitable for appropriately designed circuits with relatively low inrush currents.

Typical Applications

• Single-phase commercial electrical distribution circuits.
• Residential and light-commercial distribution boards.
• Final circuits requiring 30 mA residual-current protection.
• Lighting circuits with relatively low inrush currents.
• General electrical loads suitable for Type AC residual-current protection.
• Distribution boards requiring a 10 kA RCBO.
• DIN-rail switchboards and modular electrical panels.