🔹 Siemens SENTRON 3WT Air Circuit Breaker – 3WT8165-6UA34-5AB2 (Microprocessor Trip Unit ACB)
🔹 Product Description
The Siemens 3WT8165-6UA34-5AB2 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, reliability, and selective coordination are required.
The integrated microprocessor trip unit (ETU37WT class as per Siemens documentation) provides protection against overload, short circuit, and earth fault conditions, along with adjustable settings, fault diagnostics, and coordination capability with other protective devices. This improves system stability and reduces downtime in complex electrical networks.
The SENTRON 3WT series is Siemens’ advanced ACB platform designed for modular and intelligent power distribution systems, supporting withdrawable (draw-out) construction for safe maintenance without shutting down the entire system.
According to Siemens technical documentation, this model belongs to the 1600A frame class with a breaking capacity of 66kA at 500V AC, making it suitable for demanding industrial applications.
🔹 Key Features
• Genuine Siemens SENTRON 3WT Air Circuit Breaker
• Model: 3WT8165-6UA34-5AB2
• Microprocessor-based electronic trip unit (ETU37WT class)
• Protection against overload, short circuit, and earth fault
• High breaking capacity (66 kA at 500V AC)
• Withdrawable (draw-out) design for safe maintenance
• Supports selective coordination in complex networks
• Suitable for MCC, PCC, and LT distribution panels
• Advanced fault diagnostics and system monitoring
• Industrial-grade durability and long service life
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT |
| Model Number | 3WT8165-6UA34-5AB2 |
| Product Type | Air Circuit Breaker (ACB) |
| Rated Current | 1600 A |
| Poles | 4 Pole |
| Breaking Capacity | 66 kA @ 500V AC |
| Trip Unit | Microprocessor-based ETU (ETU37WT class) |
| Protection Functions | Overload, Short Circuit, Earth Fault |
| Mounting Type | Withdrawable / Draw-out type |
| Application | Industrial / Commercial Power Distribution |
| Brand | Siemens |
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