ACB: SENTRON 3WTPlus Microprocessor based trip unit – 3WT8081-6QP34-5AB2

Product Description

SENTRON 3WTPlus ACB – Microprocessor Based Trip Unit – 3WT8081-6QP34-5AB2

The Siemens 3WT8081-6QP34-5AB2 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 electrical power distribution systems, ensuring high reliability and precise fault detection in critical installations.

This trip unit provides complete protection against overload, short-circuit, and earth fault conditions, along with advanced digital monitoring, diagnostics, and event logging. It is widely used in industrial plants, commercial buildings, data centers, and infrastructure networks, where uninterrupted and safe power distribution is essential.

Based on the Siemens 3WTPlus platform architecture, this model belongs to the ETU37WT LSING family, offering LCD-based operation, adjustable protection settings, and optional communication modules, making it suitable for modern smart switchgear and energy management systems.

🔹 Key Features

• Siemens SENTRON 3WTPlus ACB system
• Part Number: 3WT8081-6QP34-5AB2
• Microprocessor-based electronic trip unit (ETU37WT / LSING type)
• Protection functions: overload, short circuit & earth fault
• High-precision digital current sensing
• Integrated LCD display for real-time status monitoring
• Adjustable protection settings for coordination & selectivity
• Event logging and fault diagnostics capability
• Communication-ready design (system dependent)
• Suitable for withdrawable ACB systems
• High reliability for critical power applications
• Complies with IEC 60947-2 standards