🔹 Siemens SENTRON 3WT Air Circuit Breaker – 3WT8206-6UA34-5AB2 (Microprocessor Trip Unit ACB, Vertical Installation)
🔹 Product Description
The Siemens 3WT8206-6UA34-5AB2 is a SENTRON 3WT series Air Circuit Breaker (ACB) designed for high-capacity low-voltage power distribution systems with advanced electronic protection and intelligent control features. It is equipped with a microprocessor-based electronic trip unit (ETU37WT class) that provides accurate and reliable protection for modern industrial electrical networks.
This model is commonly used in industrial plants, commercial buildings, data centers, and main power distribution panels, where high fault levels, system stability, and selective coordination are essential.
A key feature of this variant is its vertical installation design, making it suitable for switchgear configurations where space optimization, panel architecture, or mounting orientation requirements demand a vertical layout.
The integrated electronic trip unit provides protection against overload, short circuit, and earth fault conditions, along with adjustable protection settings, fault diagnostics, and coordination capabilities. This ensures improved safety, reduced downtime, and efficient fault isolation in complex power systems.
The SENTRON 3WT series is Siemens’ intelligent ACB platform designed for modular and withdrawable (draw-out) systems, enabling safe maintenance and replacement without shutting down the complete installation.
Based on Siemens technical documentation, the 3WT8206 frame belongs to the ~2000A class (Size II) with high breaking capacity up to approximately 66kA at 500V AC, depending on configuration and trip unit variant.
🔹 Key Features
• Genuine Siemens SENTRON 3WT Air Circuit Breaker
• Model: 3WT8206-6UA34-5AB2
• Vertical installation configuration
• Microprocessor-based electronic trip unit (ETU37WT class)
• Protection against overload, short circuit, and earth fault
• High breaking capacity suitable for industrial applications
• Withdrawable (draw-out) design for safe maintenance
• Supports selective coordination in complex networks
• Suitable for MCC, PCC, and main LT distribution panels
• Advanced fault diagnostics and monitoring capability
• Long service life and high operational reliability
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT |
| Model Number | 3WT8206-6UA34-5AB2 |
| Product Type | Air Circuit Breaker (ACB) |
| Rated Current | ~2000 A (frame class) |
| Poles | 3 / 4 Pole (variant dependent) |
| Trip Unit | Microprocessor-based Electronic Trip Unit (ETU37WT) |
| Protection Functions | Overload, Short Circuit, Earth Fault |
| Mounting Type | Withdrawable / Draw-out type |
| Installation Type | Vertical Installation |
| Breaking Capacity | Up to ~66 kA @ 500V AC |
| Application | Industrial / Commercial Power Distribution |
| Brand | Siemens |
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