ABB 3HAB5845-1/2 – Reliable Power Supply for Control Systems

The ABB 3HAB5845-1/2 converts AC line voltage into stable DC power for automation equipment. This power supply measures 200 mm in width and 150 mm in height. It has a depth of 110 mm, so it fits standard cabinet mounting plates. The unit weighs 2.1 kg, making installation secure and straightforward.

Internal Topology and Component Layout

This power supply contains four separate circuit boards inside its metal housing. One board handles AC input rectification, while another manages DC output regulation. The third board provides overcurrent protection, and the fourth controls fan operation. The ABB 3HAB5845-1/2 uses a flyback converter topology for efficient power conversion. Two large electrolytic capacitors store energy on the primary side.

Input Specifications and Energy Storage

You must supply 230V AC single-phase power to the input terminals. The unit accepts a voltage tolerance of ±15 percent from this nominal value. The ABB 3HAB5845-1/2 stores 1200 µF of capacitance across its primary DC bus. This storage rides through input interruptions lasting up to 30 milliseconds. Two additional capacitors of 470 µF each filter the output rails.

Output Ratings and Protection Features

The ABB 3HAB5845-1/2 delivers 24V DC at 10 amps continuously. It provides a peak output of 12 amps for up to 5 seconds during motor starts. Five screw terminals handle the DC output connections securely. The unit includes overvoltage protection set at 28V DC for load safety. It also features short-circuit protection with automatic recovery after fault removal.

Cooling, Environment, and Monitoring

A temperature-controlled fan activates when internal temperatures exceed 50°C. The ABB 3HAB5845-1/2 operates reliably from -10°C to 60°C ambient temperature. It tolerates humidity levels up to 90 percent without any condensation issues. An LED indicator on the front panel shows output status as normal or faulted. A relay contact provides remote monitoring of DC output health.

Below is a complete summary of its technical specifications.

The ABB 3HAB5845-1/2 replaces older power supplies in ABB robotic cabinets directly. You do not need any adapter plates or additional mounting hardware. This unit also accepts wide input frequency from 47 to 63 Hz. Consequently, it suits global installations without any configuration changes.