2CSR252001R1405 ABB DS202 AC-B40/0.03 RCBO 2P Type AC 30mA B40 6kA

Why Choose the ABB DS202 AC-B40/0.03 RCBO?

The ABB DS202 AC-B40/0.03 is a two-pole Type AC residual current circuit breaker with overcurrent protection (RCBO) designed to combine residual-current, overload and short-circuit protection within a single modular device. Part of ABB’s DS200 series 6000, it provides dedicated circuit protection for residential, commercial and industrial electrical distribution systems.

With a rated current of 40 A, a B-curve tripping characteristic and a rated residual operating current of 30 mA, the DS202 AC-B40/0.03 protects against overload and short-circuit currents while responding to sinusoidal alternating earth-fault currents. Its 30 mA sensitivity provides protection against indirect contact and additional protection against direct contact.

The DS202 AC-B40/0.03 operates at 230 V AC and provides a rated short-circuit breaking capacity of 6 kA. Its two-pole configuration, B-curve overcurrent characteristic and integrated Type AC residual-current protection make it a practical choice for circuits requiring individual fault isolation and comprehensive electrical protection.

Key Advantages

• Combined RCBO protection against residual current, overload and short circuit within one device.
• 30 mA residual-current sensitivity provides additional protection against electric shock.
• 40 A rated current for suitable higher-current final circuits.
• B-curve characteristic is suited to circuits with relatively low normal starting and inrush currents.
• Type AC residual-current detection responds to sinusoidal alternating earth-fault currents.
• 6 kA rated short-circuit breaking capacity under IEC/EN 61009 requirements.
• Two-pole configuration provides protection and isolation for both poles.

Key Features

• ABB DS200 series 6000 RCBO.
• 40 A rated current.
• 30 mA rated residual operating current (IΔn).
• B tripping characteristic.
• Type AC residual-current characteristic.
• Two-pole configuration.
• 230 V AC rated voltage.
• 6 kA rated short-circuit breaking capacity (Icn).
• IP20 protection degree.
• Protection against overload and short-circuit currents.
• Protection against sinusoidal alternating earth-fault currents.
• Protection against indirect contact and additional protection against direct contact.

Combined Residual-Current and Overcurrent Protection

An RCBO combines residual-current protection with miniature circuit breaker functionality in a single protective device. The ABB DS202 AC-B40/0.03 protects its circuit against sinusoidal alternating earth-fault currents as well as overload and short-circuit conditions, allowing an individual circuit to receive comprehensive protection without separate RCCB and MCB devices for these functions.

Its Type AC characteristic is designed for sinusoidal alternating residual currents, while the B-curve 40 A overcurrent characteristic is suited to circuits with relatively low normal inrush currents. Combined with 30 mA residual-current sensitivity and a 6 kA rated short-circuit breaking capacity, the DS202 AC-B40/0.03 provides dependable protection for suitable residential, commercial and industrial circuits.

Typical Applications

• Residential electrical distribution boards.
• Commercial electrical distribution systems.
• Industrial electrical distribution and control systems.
• Final circuits requiring 40 A B-curve overcurrent protection.
• Circuits requiring 30 mA additional residual-current protection.
• Electrical installations requiring dedicated two-pole RCBO protection and individual fault isolation.