🔹 Siemens SENTRON 3WT Air Circuit Breaker – 3WT8202-6UN34-5AB2 (Microprocessor Trip Unit ACB)
🔹 Product Description
The Siemens 3WT8202-6UN34-5AB2 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 (ETU37WT class) that delivers precise and reliable protection for modern electrical networks.
This breaker is commonly used in industrial plants, commercial buildings, infrastructure projects, data centers, and main LT distribution systems, where high fault levels, system reliability, and selective coordination are critical.
The integrated electronic trip unit provides protection against overload, short circuit, and earth fault conditions, along with adjustable settings, fault diagnostics, and coordination functions. This ensures better system stability, faster fault isolation, and reduced downtime in complex power distribution networks.
The SENTRON 3WT series is Siemens’ advanced intelligent ACB platform designed for modular, withdrawable (draw-out) power distribution systems, allowing safe maintenance without shutting down the complete electrical installation.
Based on Siemens SENTRON 3WT architecture, the 3WT8202 frame class typically represents the 2000A category (Size II) with high breaking capacity up to around 66kA at 500V AC (depending on configuration and trip unit variant).
🔹 Key Features
• Genuine Siemens SENTRON 3WT Air Circuit Breaker
• Model: 3WT8202-6UN34-5AB2
• Microprocessor-based electronic trip unit (ETU37WT class)
• Protection against overload, short circuit, and earth fault
• High breaking capacity 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
• Designed for long service life and high reliability
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT |
| Model Number | 3WT8202-6UN34-5AB2 |
| Product Type | Air Circuit Breaker (ACB) |
| Rated Current | 2000 A (typical 3WT8202 frame class) |
| Poles | 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 |
| Breaking Capacity | Up to ~66 kA @ 500V AC (variant dependent) |
| Application | Industrial / Commercial Power Distribution |
| Brand | Siemens |
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