ABB DSQC 345B | Rectifier Unit DC1

Product Overview

The ABB DSQC 345B (3HAB8101-2/04B) is a high-capacity rectifier unit designed for the power conversion stage of ABB industrial robot controllers, specifically within the S4C+ drive system family. This module serves as the DC1 power supply stage, performing the critical task of converting AC line voltage into the stable DC bus voltage required to drive multiple servo motor amplifiers.

Technical Specifications

• Brand/Manufacturer: ABB

• Model Number: DSQC 345B

• Part Number: 3HAB8101-2/04B

• Function: AC to DC Rectification (DC1 Stage)

• System Series: S4C+ Robot Control

• Weight: 3.63 kg (8.00 lbs)

• Category: Bridge Rectifier / Power Module

Key Features

• High-Power Bridge Rectification: Engineered to handle heavy electrical loads, providing the primary DC link required for simultaneous multi-axis robot acceleration and deceleration.

• Integrated Drive System Design: Specifically designed to match the physical and electrical footprint of S4C+ drive modules, ensuring balanced and efficient power distribution across the rack.

• Rugged Thermal Management: Features a substantial heat-dissipation structure (heat sink) to maintain operational efficiency and prevent thermal runaway during high-duty cycle industrial operations.

• Critical System Node: As the DC1 unit, this module is the "heart" of the drive power chain. Its reliability is paramount, as it feeds the power required by all subsequent axis drive units.