2CSR255187R1404 ABB DS201C40A30UL RCBO 1P+N 40A Type A 30mA 6kA UL

Why Choose the ABB DS201C40A30UL RCBO?

The ABB DS201C40A30UL is a compact 1P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect electrical circuits against overloads, short circuits and earth faults. As part of the ABB DS201 UL series, it combines residual-current and overcurrent protection in a single device suitable for electrical equipment, machinery and industrial control applications.

This RCBO features a 40 A rated current, 30 mA rated residual operating current and Type C tripping characteristic. Its Type A residual-current detection responds to sinusoidal alternating and pulsating DC residual currents, providing dependable earth-fault protection alongside conventional overcurrent protection.

With a 6 kA short-circuit breaking capacity and 1P+N configuration, the DS201C40A30UL provides effective combined circuit protection in a compact format. Its C characteristic accommodates moderate starting currents, making it well suited to commercial and industrial electrical loads, machinery and control systems.

Key Advantages

• Combined residual-current and overcurrent protection in one compact device.
• 40 A rated current for single-phase electrical circuits.
• 30 mA residual-current sensitivity for additional protection against electric shock.
• Type C tripping characteristic suitable for circuits with moderate inrush currents.
• Type A residual-current detection for sinusoidal AC and pulsating DC residual currents.
• 6 kA short-circuit breaking capacity.
• UL version for appropriate electrical equipment and machinery applications.

Key Features

• ABB DS201 UL RCBO series.
• 1P+N configuration.
• 40 A rated current.
• 30 mA rated residual operating current.
• C characteristic overcurrent tripping curve.
• Type A residual-current protection.
• 6 kA rated short-circuit breaking capacity.
• Combined overload, short-circuit and residual-current protection.
• DIN-rail mounting for straightforward panel integration.

Reliable Combined Circuit Protection

RCBOs such as the ABB DS201C40A30UL combine the functions of a miniature circuit breaker and residual-current protective device. This allows a single compact unit to disconnect a circuit in response to overloads, short circuits or potentially hazardous residual currents while reducing the need for separate protective devices.

The C tripping characteristic accommodates moderate transient starting currents while maintaining effective overload and short-circuit protection. Combined with Type A residual-current detection, the DS201C40A30UL provides versatile protection for electrical equipment, machinery, control systems and other single-phase loads.

Typical Applications

• Industrial machinery and electrical equipment.
• OEM machine control panels.
• Commercial electrical installations.
• Industrial control and automation systems.
• Single-phase circuits requiring combined protection.
• Electrical distribution and machine-building applications.