🔹 Siemens SENTRON 3WT Air Circuit Breaker – 3WT8165-6UA38-5AB2 (Microprocessor Trip Unit ACB)
🔹 Product Description
The Siemens 3WT8165-6UA38-5AB2 is a SENTRON 3WT series Air Circuit Breaker (ACB) designed for high-capacity low-voltage power distribution systems with intelligent electronic 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 widely used in industrial plants, manufacturing units, commercial buildings, data centers, infrastructure projects, and critical power distribution systems, where high fault levels and uninterrupted power supply 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 improves system stability and helps achieve selective tripping in complex electrical 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 full system.
According to Siemens technical documentation, the 3WT8165 frame class typically corresponds to 1600A rated current with 4-pole configuration and high breaking capacity up to around 66kA at 500V AC, depending on configuration and release type.
🔹 Key Features
• Genuine Siemens SENTRON 3WT Air Circuit Breaker
• Model: 3WT8165-6UA38-5AB2
• Microprocessor-based electronic trip unit (ETU)
• Protection against overload, short circuit, and earth fault
• High breaking capacity for industrial applications
• Withdrawable (draw-out) design for easy maintenance
• Supports selective coordination in power networks
• Suitable for MCC, PCC, and LT distribution panels
• Advanced fault diagnostics and system monitoring
• Designed for long life and industrial reliability
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT |
| Model Number | 3WT8165-6UA38-5AB2 |
| Product Type | Air Circuit Breaker (ACB) |
| Rated Current | ~1600 A |
| Poles | 4 Pole |
| Trip Unit | Microprocessor-based Electronic Trip Unit (ETU) |
| Protection Functions | Overload, Short Circuit, Earth Fault |
| Mounting Type | Withdrawable / Draw-out type |
| Breaking Capacity | ~66 kA @ 500V AC (variant dependent) |
| Application | Industrial / Commercial Power Distribution |
| Brand | Siemens |
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