ABB BASC25H208 DATX100 Power Supply Module

Product Overview

ABB BASC25H208 (Model No. 3ASC25H208) DATX100 is a high-performance module integrating pulse conversion, signal conditioning and power supply for ABB industrial automation. It is widely deployed in measurement and control systems of power facilities and process industries. Serving as a critical interface between primary equipment (CT/VT, sensors) and secondary control systems, it undertakes three core tasks: power distribution, isolated conversion of analog and digital signals, and high-speed pulse processing.

Core Functions

1. Power Supply & Redundancy

• Input voltage: DC 24V ±10% (BASC25H208); DC 18–56V (DATX100)
• Supports dual power redundancy, compatible with 125/250VDC and 120/240VAC for uninterrupted operation
• Built-in overvoltage, overcurrent and reverse polarity protection, suitable for harsh industrial power supply environments

2. High-Precision Signal Conversion (Pulse Transformer Board)

• 16 isolated channels, accepting 0–10V / 4–20mA analog input signals
• Converts CT/VT analog signals into high-precision digital pulses with accuracy up to 0.1% and maximum delay ≤100μs
• Equipped with anti-aliasing filter and automatic range adaptation, ideal for power harmonic and transient measurement

3. Digital I/O & Real-Time Communication

• 8 analog input channels + 8 digital output channels, 16-bit resolution, maximum sampling rate up to 100kHz
• Interfaces: RS-485, 10/100Mbps Ethernet; Protocols: Modbus RTU/TCP, PROFIBUS, IEC 61850
• I/O refresh cycle: 1ms; supports Sequence of Events (SOE) recording and network-wide time synchronization

Technical Specifications

表格

Parameter	Specification
Model	BASC25H208 (3ASC25H208) DATX100
Operating Voltage	DC 24V ±10%; DC 18–56V
Power Consumption	4.8W
Channels	16 isolated channels (8AI + 8DO)
Accuracy	0.1% grade, 16-bit
Communication	RS-485, Ethernet; Modbus, PROFIBUS, IEC 61850
Operating Temperature	-25°C ~ +70°C
Isolation Voltage	500V
Dimensions (mm)	150.5 × 48.1 × 109.8
Weight	Approx. 1.03kg
Certifications	CE, UL, CSA

Key Advantages

• Industrial-grade Reliability: Full metal housing, wide temperature tolerance and strong EMC performance, adaptable to harsh working conditions in substations and workshops.
• Excellent Compatibility: Part of ABB S800 I/O series, fully compatible with Relion® protection systems and AC 800 controllers; supports both traditional CT/VT and electronic current/voltage transformers (ECT/EVT).
• Easy Maintenance & High Availability: Hot-swap supported for on-site replacement without system shutdown. Redundant power design ensures normal operation against single-point failures.
• Digital Upgrade Enablement: Facilitates digital transformation of traditional stations, applicable for synchrophasor measurement and Wide Area Monitoring Systems (WAMS), compliant with smart grid and Industry 4.0 requirements.

Typical Applications

• Power industry: Substation automation, medium & high voltage distribution protection, generator excitation and measurement & control
• Process industry: High-precision signal acquisition and closed-loop control for oil & gas, chemical and water treatment sectors
• Critical infrastructure: Power monitoring and interlock protection for rail transit, data centers and metallurgical plants

Summary

ABB BASC25H208 DATX100 is a highly integrated module combining power supply, signal processing and communication functions. Featuring high precision, outstanding reliability and wide compatibility, it is a preferred component for industrial automation and power digitalization, guaranteeing safe, stable and efficient operation of core systems.