ACB: SENTRON 3WTPlus Microprocessor based trip unit – 3WT8081-6AA04-5AB2

Product Description

ENTRON 3WTPlus ACB – Microprocessor Based Trip Unit – 3WT8081-6AA04-5AB2

The Siemens 3WT8081-6AA04-5AB2 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 complete protection against overload, short circuit, and earth fault conditions, along with advanced monitoring, diagnostics, and system communication features. It is widely used in industrial plants, commercial buildings, data centers, and infrastructure power systems, where uninterrupted and secure power distribution is essential.

According to Siemens 3WTPlus technical documentation, this series supports high-performance withdrawable ACB systems with ETU37WT LSING protection, integrated LCD display, and advanced parameterization via Powerconfig, making it suitable for modern smart switchgear applications.

🔹 Key Features

• Siemens SENTRON 3WTPlus ACB system
• Part Number: 3WT8081-6AA04-5AB2
• Microprocessor-based electronic trip unit (ETU37WT / LSING type with display)
• Advanced protection: overload, short circuit & earth fault
• High-precision digital sensing for accurate fault detection
• Integrated LCD display for real-time status monitoring
• Adjustable protection settings for selectivity & coordination
• Event logging and diagnostic functions
• Communication-ready architecture (system dependent)
• Designed for withdrawable ACB systems
• High reliability for critical power applications
• Complies with IEC 60947-2 standards