SENTRON 3WT Air Circuit Breaker with Microprocessor Trip Unit – 3WT8202-6AA18-5AB2

🔹 Siemens SENTRON 3WT Air Circuit Breaker – 3WT8202-6AA18-5AB2 (Microprocessor Trip Unit ACB)

🔹 Product Description

The Siemens 3WT8202-6AA18-5AB2 is a SENTRON 3WT series Air Circuit Breaker (ACB) designed for high-capacity low-voltage power distribution systems with advanced intelligent protection. It is equipped with a microprocessor-based electronic trip unit (ETU) that ensures precise, reliable, and adaptive protection for modern electrical installations.

This breaker is commonly used in industrial plants, commercial buildings, data centers, infrastructure projects, and large power distribution networks, where high fault levels and continuous uptime are critical.

The integrated microprocessor trip unit provides protection against overload, short circuit, and earth fault conditions, along with adjustable protection settings, fault diagnostics, and coordination features. This helps improve system stability, reduce downtime, and ensure safe operation in complex electrical distribution systems.

The SENTRON 3WT series is Siemens’ advanced intelligent ACB platform designed for modular, digital, and withdrawable power distribution systems, allowing safe maintenance without shutting down the entire installation.

Based on Siemens 3WT8202 frame architecture, this model typically belongs to the 2000A class (Frame size II) with high breaking capacity up to around 66kA at 500V AC, depending on configuration and trip unit type.

🔹 Key Features

• Genuine Siemens SENTRON 3WT Air Circuit Breaker
• Model: 3WT8202-6AA18-5AB2
• Microprocessor-based electronic trip unit (intelligent protection system)
• Protection against overload, short circuit, and earth fault
• High breaking capacity for industrial-grade applications
• Withdrawable (draw-out) design for safe maintenance
• Supports selective coordination in complex power networks
• Suitable for MCC, PCC, and main LT distribution panels
• Advanced fault diagnostics and system monitoring
• Designed for high reliability and long operational life