Product Description
The ABB SA161 with part number 3BSE003387R1 is a high-reliability industrial AC-DC power supply unit designed for ABB industrial distributed control systems and automation rack equipment. As a dedicated power conversion and power distribution core module, it converts 115VAC industrial alternating current into stable 24VDC direct current, providing continuous and purified operating power for system controllers, I/O modules and communication units. It serves as the stable power foundation to ensure long-term stable and reliable operation of the entire industrial automation control rack.

This industrial-grade power supply module features a standard 10A large-current output capacity, meeting the full-load power demand of multi-module combined racks. It adopts professional power conversion circuit design with high conversion efficiency, low heat generation and strong load adaptability. Built-in complete overcurrent, overvoltage, short-circuit and surge protection mechanisms can automatically isolate abnormal power signals and protect rear-end precision control hardware from electrical damage. Equipped with intuitive operating status indicators, it supports real-time working state feedback and rapid fault judgment. Adopting standard rack-mounted modular structure and conformal coating treatment, it has excellent dust-proof, moisture-proof and anti-electromagnetic interference performance, adapting to harsh industrial cabinet environments and supporting 24/7 long-term uninterrupted power supply operation.
Main Specifications
- Full Part Number: SA161, 3BSE003387R1; Product Type: Industrial dedicated AC-DC power supply unit module
- Applicable System: ABB industrial distributed control system, automation rack and process control platform
- Core Function: AC-DC power conversion, stable DC power output, power purification and circuit fault protection
- Input Specification: Standard 115VAC industrial alternating current input
- Output Specification: Stable 24VDC direct current output with rated 10A large current capacity
- Conversion Performance: High power conversion efficiency, low power consumption and low operating heat generation
- Protection Mechanism: Integrated overcurrent, overvoltage, short-circuit and transient surge multi-stage protection
- Fuse Configuration: Built-in 10A dedicated safety fuse for over-current overload protection
- Status Indication: Onboard LED indicators for real-time power supply operating status feedback
- Load Adaptability: Strong load driving capability, supporting full-load stable operation of multi-module racks
- Surface Treatment: Industrial conformal coating for dust-proof, moisture-proof and anti-aging performance
- Operational Reliability: Strict industrial aging tests, low failure rate for long-term system power guarantee tasks
Core Functions
- Act as the core AC-DC power conversion and power supply unit for ABB industrial control racks.
- Convert 115VAC industrial alternating current into stable 24VDC standardized operating power.
- Provide continuous, low-ripple purified DC power for controllers, I/O and communication modules.
- Support 10A high-current output to meet full-load power demand of integrated automation racks.
- Trigger automatic protection isolation under power anomalies to protect rear-end control hardware.
- Real-time display power supply working status to facilitate on-site inspection and rapid troubleshooting.
- Maintain stable power output under complex industrial voltage fluctuation conditions.
- Guarantee uninterrupted and stable operation of industrial process control automation systems.
Application Scenarios
- Power plant industrial control cabinet DCS rack stable power supply and distribution systems
- Petrochemical and chemical process automation equipment power guarantee platforms
- Metallurgy, water treatment and manufacturing industrial control system power supply scenarios
- Industrial sites requiring 24VDC high-current stable power supply for control modules
- Old ABB automation rack power module replacement and system power stability upgrading projects
- Harsh industrial environments with voltage fluctuation, dust pollution and electromagnetic interference
- All industrial automation control applications based on ABB modular rack architecture