ABB BASC25H208 DATX100 – High Efficiency Power Unit for DCS

Product Overview

The ABB BASC25H208 (3ASC25H208) DATX100 is a high‑efficiency, integrated power supply and I/O module designed specifically for Distributed Control Systems (DCS) in industrial automation and power applications. It combines precision pulse transformation, signal conditioning, isolated I/O, and redundant power regulation into a compact, DIN‑rail mountable unit, serving as a critical power and signal interface for ABB S800 I/O, AC 800 DCS, and Relion® protection platforms. Engineered for 24/7 operation in harsh industrial environments, it delivers stable, high‑efficiency power conversion (up to 92%) and reliable signal integrity for mission‑critical DCS loops.

Key Features – High Efficiency & DCS‑Optimized

1. High‑Efficiency Power Conversion

• Wide‑range DC input: 24V DC ±10% (BASC25H208) / 18–56V DC (DATX100); accepts 125/250V DC or 120/240V AC for redundant backup.
• Ultra‑high efficiency: Up to 92% power conversion efficiency, minimizing heat generation and energy loss in DCS cabinets.
• Low power consumption: 4.8W typical, reducing load on DCS power buses.
• Robust protection: Overvoltage, overcurrent, short‑circuit, and reverse‑polarity protection; withstands ±20% voltage fluctuations.

2. DCS‑Centric I/O & Signal Processing

• 16 isolated channels: 8 analog inputs (0–10V / 4–20mA) + 8 digital outputs; 16‑bit resolution, 0.1% accuracy for DCS process data.
• High‑speed pulse conversion: Transforms CT/VT analog signals into precision pulses (10kHz–100kHz frequency range) for DCS power monitoring and control.
• Real‑time DCS communication: RS‑485 + 10/100Mbps Ethernet; supports Modbus RTU/TCP, PROFIBUS, IEC 61850; I/O refresh rate 1ms for tight DCS loop synchronization.
• Galvanic isolation: 500V isolation voltage, protecting DCS controllers from high‑voltage transients and ground loops.

3. Industrial‑Grade Reliability for DCS

• Wide temperature tolerance: ‑25°C to +70°C, suitable for unconditioned DCS rooms and field cabinets.
• Hot‑swap capability: Replaceable online without DCS shutdown, maximizing system uptime.
• Redundant power design: Dual‑input power support (e.g., mains + battery backup), eliminating single points of failure in DCS power distribution.
• Compact & durable: All‑metal housing with efficient heat dissipation; dimensions 150.5 × 48.1 × 109.8mm, weight 1.03kg; DIN‑rail mountable for easy DCS cabinet integration.

Technical Specifications

表格

Parameter	Specification
Model	BASC25H208 (3ASC25H208) DATX100
Type	High‑Efficiency Power Unit + DCS I/O Module
Power Input	DC 24V ±10% / DC 18–56V; dual redundancy (125/250VDC / 120/240VAC)
Efficiency	Up to 92%
Power Consumption	4.8W (typical)
I/O Channels	8AI (0–10V/4–20mA) + 8DO, 16 isolated channels
Resolution/Accuracy	16‑bit, 0.1%
Pulse Frequency	10kHz–100kHz
Communication	RS‑485, Ethernet 10/100Mbps; Modbus, PROFIBUS, IEC 61850
Isolation Voltage	500V
Operating Temperature	‑25°C ~ +70°C
Dimensions (mm)	150.5 × 48.1 × 109.8
Weight	Approx. 1.03kg
Certifications	CE, UL, CSA
Compatibility	ABB S800 I/O, AC 800 DCS, Relion® protection systems

DCS Applications

• Power DCS: Substation automation, generator excitation control, grid monitoring, and protective relaying.
• Process DCS: Oil & gas, chemical, water treatment, and metallurgy – high‑precision signal acquisition and closed‑loop control.
• Critical Infrastructure DCS: Data centers, rail transit, and smart grid WAMS – reliable power and signal conditioning for DCS nodes.
• ABB DCS Upgrades: Direct replacement for legacy ABB power I/O modules; seamless integration into existing AC 800/S800 DCS architectures.

Why Choose This High‑Efficiency Power Unit for DCS

• Optimized for DCS: Tailored power and I/O performance to meet DCS real‑time and reliability demands.
• Energy & Cost Savings: Industry‑leading 92% efficiency reduces DCS cabinet cooling loads and operational costs.
• Seamless ABB Integration: Native compatibility with ABB DCS platforms minimizes engineering effort and risk.
• Proven Durability: Field‑tested in thousands of industrial DCS installations; backed by 12‑month warranty.