ABB EPD24-TB-101-2A Electronic Circuit Breaker – 1 Channel – 2 A – 24 V DC

Why Choose the ABB EPD24-TB-101-2A Electronic Circuit Breaker?

The ABB 2CDE601101R2002, also known as the EPD24-TB-101-2A, is a compact electronic protection device for 24 V DC load circuits designed to provide selective overcurrent protection in industrial automation and control systems. As part of the ABB EPD24 series, it detects overloads and short circuits rapidly and selectively disconnects the affected load circuit while helping other load circuits remain operational.

The device uses active electronic current limitation and provides reliable protection against overload and short-circuit conditions. For the 2 A version, overload shutdown starts at approximately 1.1 × rated current, while the maximum overcurrent is limited to approximately 1.3–1.8 × the selected rated current. This selective protection helps simplify fault diagnosis and minimise unnecessary interruption of other 24 V DC load circuits.

With a 2 A rated current, 24 V DC nominal supply and a maximum operating voltage range of 18–32 V DC, the EPD24-TB-101-2A is suitable for PLCs, sensors, actuators, control components and other DC loads used in industrial automation. Its slim 12.5 mm module width and DIN-rail mounting make it well suited to space-conscious control cabinets.

Key Advantages

• Compact electronic circuit breaker for 24 V DC load circuits.
• 2 A rated current for individual DC load protection.
• Selective electronic protection helps isolate faults to the affected circuit.
• Active current limitation protects against overload and short-circuit conditions.
• Overload shutdown from approximately 1.1 × rated current.
• Manual ON/OFF operation for convenient circuit control.
• Integrated LED status and fault indication with auxiliary signalling contact.
• Space-saving 12.5 mm module width and DIN-rail mounting.

Key Features

• ABB EPD24 electronic protection device.
• EPD24-TB-101-2A model.
• 2 A rated current.
• 24 V DC nominal voltage.
• 18–32 V DC operating voltage range.
• Single protected output channel.
• Electronic trip characteristic for selective DC load protection.
• Active electronic current limitation during short circuits.
• Overload disconnection from approximately 1.1 × IN.
• Maximum load capacitance up to 20,000 µF.
• Manual ON/OFF control.
• LED status and fault indication.
• Potential-free auxiliary contact for fault signalling.
• DIN-rail mounting with screw terminals.

Selective Protection for 24 V DC Automation Systems

The ABB EPD24 series is designed specifically for selective protection of 24 V DC load circuits. When an overload or short circuit occurs, the electronic protection device detects the fault and switches off the affected output, helping prevent a fault in one branch from unnecessarily interrupting other connected load circuits.

The EPD24-TB-101-2A also supports capacitive loads up to 20,000 µF and provides clear status and fault indication through its integrated LED and auxiliary contact. Busbar-compatible LINE+ and 0 V connections can simplify wiring when multiple EPD24 devices are installed together.

Typical Applications

• 24 V DC industrial automation systems.
• PLC and control system load protection.
• Sensors, actuators and instrumentation circuits.
• Industrial control cabinets and electrical panels.
• Machine automation and manufacturing equipment.
• DC power distribution and control circuits.
• Protection of individual electronic and inductive loads.