2TAZ264114R1251 ABB DSN201E B25 A10 RCBO 1P+N 25 A Type A 10 mA 6 kA

Why Choose the ABB DSN201E B25 A10 RCBO?

The ABB DSN201E B25 A10 is a compact 1P+N electronic residual current circuit breaker with overcurrent protection (RCBO) designed to protect single-phase final circuits against overloads, short circuits and earth leakage faults. Combining residual current and overcurrent protection in one device provides comprehensive circuit protection while conserving valuable distribution-board space.

This DSN201E variant combines a 25 A rated current, B tripping characteristic, 10 mA residual current sensitivity and Type A residual current detection. Type A protection responds to sinusoidal alternating and pulsating DC residual currents, making the RCBO suitable for appropriately selected circuits containing modern electronic equipment.

With a 6 kA breaking capacity, 240 V AC rating and switched neutral, the DSN201E B25 A10 provides space-efficient protection in a compact 18 mm single-module format. Its non-directional design and DIN-rail construction support straightforward integration into residential, commercial and industrial distribution systems.

Key Advantages

• Combines overload, short-circuit and residual current protection in one compact RCBO.
• 25 A rated current for appropriately rated single-phase final circuits.
• B tripping characteristic suited to circuits with relatively low starting and inrush currents.
• Sensitive 10 mA residual operating current for enhanced earth leakage protection.
• Type A residual current protection detects sinusoidal AC and pulsating DC earth fault currents.
• 6 kA breaking capacity for low-voltage circuit protection.
• 1P+N configuration with switched neutral.
• Compact 18 mm single-module width conserves distribution-board space.
• Non-directional connection provides additional installation flexibility.

Key Features

• ABB DSN201E electronic RCBO.
• 1P+N pole configuration.
• 25 A rated current.
• B tripping characteristic.
• Type A residual current protection.
• 10 mA rated residual operating current.
• 6 kA breaking capacity.
• 240 V AC rated voltage.
• 50/60 Hz rated frequency.
• Switched neutral.
• Voltage-dependent electronic RCBO construction.
• Compact single-module DIN-rail format.

Type A Residual Current and Overcurrent Protection

The ABB DSN201E B25 A10 combines miniature circuit breaker and residual current protective functions in a single compact device. It protects the connected circuit against overload and short-circuit currents while monitoring current balance between the phase and neutral conductors to detect potentially hazardous leakage to earth.

Its Type A residual current characteristic responds to both sinusoidal alternating and pulsating DC residual currents. Combined with a sensitive 10 mA trip threshold, this makes the DSN201E B25 A10 suitable for applications where enhanced residual current protection is specified, while the B characteristic is appropriate for suitably selected loads with relatively low inrush currents.

Typical Applications

• Residential single-phase final circuits.
• Commercial electrical distribution boards.
• Industrial low-voltage control and distribution panels.
• Circuits supplying compatible electronic equipment.
• Final circuits requiring sensitive 10 mA residual current protection.
• Loads with relatively low starting and inrush currents.
• Distribution boards requiring compact individual RCBO protection.
• Applications requiring combined overload, short-circuit and earth leakage protection.