ABB 4LA41100102V1.2 KB2 DC Power Module

Brief Description
ABB 4LA41100102V1.2 KB2 is an industrial-grade DC power module of the ABB brand. It adopts AC/DC conversion technology, converting the AC input (230V AC) into a stable DC output (+24V DC), providing high-reliability power supply for the core components of DCS/PLC systems, such as controllers, I/O modules, and communication boards. It features overcurrent/overvoltage/short-circuit protection, DIN rail installation, and IP20 protection level. It is widely used in industrial automation control cabinets for power generation, petrochemical, metallurgy, etc.
Product Description
Item Content
Product Full Name ABB DC Power Supply Module
Model 4LA41100102
Firmware Version V1.2
Suffix KB2
Manufacturer ABB (formerly Swiss GE-Alsthom)
Applicable System ABB DCS Control System (Infi 90 / 6000XA / Symphony, etc.) and independent control cabinets for power supply
Product Category Industrial DC Switching Power Supply / Isolation Power Module
Core Function AC→DC rectification conversion, providing stable +24V DC power supply for the control system, including multiple protections
Product Status Original import, in stock, with one-year warranty

Detailed Description
The ABB 4LA41100102V1.2 KB2 DC power supply module is a highly reliable DC power supply unit specially designed by ABB for industrial automation control systems. This module converts 230V AC (50/60Hz) alternating current into stable +24V DC direct current through rectification, filtering, and voltage stabilization, providing working power for DCS main control units (PM/PP), intelligent I/O modules (IT94-3, etc.), communication interface boards, safety relays, etc. The module is equipped with overcurrent protection (OCP), overvoltage protection (OVP), short circuit protection (SCP), and reverse connection protection functions. It is installed on the DIN rail and placed in standard control cabinets, with an IP20 protection level, wide operating temperature range, and is an indispensable power supply core in ABB’s control system’s “distributed control, centralized management” architecture.