SENTRON 3WT Air Circuit Breaker with Microprocessor Trip Unit – 3WT8165-6UP38-5AY2

🔹 Siemens SENTRON 3WT Air Circuit Breaker – 3WT8165-6UP38-5AB2 (Microprocessor Trip Unit ACB)

🔹 Product Description

The Siemens 3WT8165-6UP38-5AB2 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 networks.

This breaker is widely used in industrial plants, manufacturing facilities, commercial buildings, data centers, infrastructure projects, and critical power distribution systems, where high fault levels, selectivity, and continuous uptime are essential.

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

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

Based on Siemens SENTRON 3WT architecture and similar 3WT8165 frame variants, this model typically belongs to the 1600A class with 4-pole configuration and high breaking capacity up to around 66kA at 500V AC (depending on exact release version).

🔹 Key Features

• Genuine Siemens SENTRON 3WT Air Circuit Breaker
• Model: 3WT8165-6UP38-5AB2
• Microprocessor-based electronic trip unit (intelligent protection system)
• Protection against overload, short circuit, and earth fault
• High breaking capacity for industrial power systems
• Withdrawable (draw-out) design for easy 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 industrial reliability