ACB: SENTRON 3WTPlus Microprocessor based trip unit – 3WT8081-6AA14-5AB3

Product Description

SENTRON 3WTPlus ACB – Microprocessor Based Trip Unit – 3WT8081-6AA14-5AB3

The Siemens 3WT8081-6AA14-5AB3 is an advanced microprocessor-based trip unit system used in the SENTRON 3WTPlus Air Circuit Breaker (ACB) range. It is designed for intelligent protection, monitoring, and control of low-voltage power distribution systems, ensuring high reliability, safety, and precise fault detection in critical electrical networks.

This trip unit provides comprehensive protection against overload, short circuit, and earth fault conditions, along with real-time monitoring, event logging, and diagnostic functions. It is widely used in industrial plants, commercial buildings, data centers, and infrastructure power systems, where uninterrupted and safe power distribution is essential.

The 3WTPlus platform is Siemens’ next-generation ACB system with advanced electronic architecture, LCD-based operation, and modular communication options, enabling integration into modern energy management systems.

🔹 Key Features

• Siemens SENTRON 3WTPlus ACB system
• Part Number: 3WT8081-6AA14-5AB3
• Microprocessor-based electronic trip unit (ETU37WT / LSING type)
• Protection functions: overload, short circuit & earth fault
• High-precision digital sensing for accurate fault detection
• Integrated LCD display for real-time monitoring
• Adjustable protection settings for selectivity & coordination
• Event logging and fault diagnostics
• Communication-ready architecture (system dependent)
• Designed for withdrawable ACB systems
• High reliability for critical power applications
• Complies with IEC 60947-2 standards