2CSR253101R1325 ABB DS203 A-B32/0.03 RCBO 3P Type A B32 30mA 6kA

Why Choose the ABB DS203 A-B32/0.03 RCBO?

The ABB DS203 A-B32/0.03 is a reliable 3-pole residual current circuit breaker with overcurrent protection (RCBO) designed to protect electrical circuits against overloads, short circuits and earth leakage faults. As part of the ABB DS200 RCBO series, it combines residual current and overcurrent protection in a single compact protective device for commercial and industrial electrical installations.

This Type A RCBO detects sinusoidal alternating residual currents as well as pulsating DC residual currents, providing dependable protection for circuits supplying modern electrical and electronic equipment. Its integrated thermal-magnetic protection also safeguards conductors and connected equipment against overload and short-circuit conditions.

With a rated current of 32 A, a B tripping characteristic, 30 mA residual current sensitivity and 6 kA rated short-circuit capacity, the DS203 A-B32/0.03 provides coordinated protection for three-phase circuits where reliable personal and installation protection is required.

Key Advantages

• Combines residual current and overcurrent protection in one device.
• 32 A rated current for three-phase electrical circuits.
• 30 mA residual current sensitivity for additional protection against electric shock.
• Type A residual current detection for AC and pulsating DC earth fault currents.
• B tripping characteristic suited to circuits with relatively low inrush currents.
• 6 kA rated short-circuit capacity for dependable circuit protection.

Key Features

• ABB DS200 series RCBO.
• 3-pole configuration.
• 32 A rated current.
• 30 mA rated residual operating current.
• Type A residual current characteristic.
• Type B overcurrent tripping characteristic.
• 6 kA rated short-circuit capacity.
• Provides overload, short-circuit and residual current protection.
• Designed for DIN rail installation in electrical distribution assemblies.

Reliable Protection for Three-Phase Circuits

RCBOs combine the functions of a miniature circuit breaker and residual current device in one unit. The ABB DS203 A-B32/0.03 therefore protects a circuit against excessive current caused by overloads or short circuits while simultaneously monitoring for potentially hazardous earth leakage currents.

Its Type A residual current characteristic makes it suitable for installations where electrical equipment may generate pulsating DC fault currents in addition to conventional sinusoidal AC residual currents. The 30 mA sensitivity provides additional protection against direct contact while supporting effective fault protection in commercial and industrial distribution systems.

Typical Applications

• Three-phase commercial electrical circuits.
• Industrial distribution boards and control panels.
• Machinery and equipment supply circuits.
• Lighting and general power distribution systems.
• Circuits requiring combined overload and earth leakage protection.
• Electrical installations requiring 30 mA Type A residual current protection.