SENTRON 3WT Air Circuit Breaker with Microprocessor Trip Unit – 3WT8165-6UN58-5AB2

🔹 Siemens SENTRON 3WT Air Circuit Breaker – 3WT8165-6UN58-5AB2 (Microprocessor Trip Unit ACB)

🔹 Product Description

The Siemens 3WT8165-6UN58-5AB2 is a SENTRON 3WT series Air Circuit Breaker (ACB) designed for high-capacity low-voltage power distribution systems with advanced intelligent protection features. It is equipped with a microprocessor-based electronic trip unit (ETU) that delivers precise, reliable, and adaptive protection for modern electrical networks.

This breaker is commonly used in industrial plants, manufacturing facilities, commercial buildings, data centers, infrastructure projects, and critical power distribution systems, where high fault levels, system stability, and selective coordination are required.

The integrated microprocessor trip unit provides protection against overload, short circuit, and earth fault conditions, along with adjustable settings, fault diagnostics, and coordination features. This ensures improved safety, reduced downtime, and better control of complex electrical distribution networks.

The SENTRON 3WT series is Siemens’ intelligent ACB platform designed for modular and smart power distribution systems, supporting withdrawable (draw-out) construction for safe maintenance and easy replacement without shutting down the entire system.

From Siemens SENTRON 3WT platform architecture, the series typically supports frame sizes up to 4000A with high breaking capacity up to ~85kA depending on configuration, making it suitable for demanding industrial environments.

🔹 Key Features

• Genuine Siemens SENTRON 3WT Air Circuit Breaker
• Model: 3WT8165-6UN58-5AB2
• Microprocessor-based electronic trip unit (intelligent protection system)
• Protection against overload, short circuit, and earth fault
• High breaking capacity for industrial-grade systems
• Withdrawable (draw-out) design for safe maintenance
• Supports selective coordination in complex networks
• Suitable for MCC, PCC, and LT distribution panels
• Advanced fault diagnostics and system monitoring
• Long operational life with high reliability