🔹 Siemens SENTRON 3WT Air Circuit Breaker – 3WT8085-6AA04-5AB2 (ETU Protection Unit ACB)
🔹 Product Description
The Siemens 3WT8085-6AA04-5AB2 is a SENTRON 3WT series Air Circuit Breaker (ACB) designed for advanced low-voltage power distribution and high-performance protection applications. It is equipped with an ETU (Electronic Trip Unit) protection system, which provides intelligent and precise protection for modern electrical networks.
This ACB is widely used in industrial plants, commercial complexes, data centers, utility substations, and critical infrastructure systems, where reliable and selective protection of electrical distribution is required.
The breaker offers protection against overload, short circuit, and earth fault conditions, ensuring system safety and operational continuity. The ETU electronic trip unit enhances accuracy compared to traditional thermal-magnetic systems by enabling adjustable protection settings, fault diagnostics, and improved coordination with upstream/downstream devices.
It features a withdrawable design, allowing the breaker to be easily racked in/out for maintenance without shutting down the entire system, making it highly suitable for mission-critical power distribution panels (PCC/MCC).
According to Siemens 3WT series technical data, this model is rated for 800A frame size with 66kA breaking capacity at 500V AC, ensuring strong fault interruption capability in demanding industrial environments.
🔹 Key Features
• Genuine Siemens SENTRON 3WT Air Circuit Breaker
• Model: 3WT8085-6AA04-5AB2
• ETU (Electronic Trip Unit) based protection system
• Protection against overload, short circuit & earth fault
• High breaking capacity: up to 66 kA
• Withdrawable (draw-out) type design for easy maintenance
• Suitable for PCC, MCC, and LT power distribution panels
• Enables selective coordination in complex power networks
• Supports industrial automation and critical infrastructure use
• Designed for high reliability and operational safety
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT |
| Model Number | 3WT8085-6AA04-5AB2 |
| Product Type | Air Circuit Breaker (ACB) |
| Rated Current | 800 A |
| Poles | 4 Pole |
| Breaking Capacity | 66 kA @ 500V AC |
| Trip Unit | ETU (Electronic Trip Unit) |
| Protection Functions | Overload, Short Circuit, Earth Fault |
| Mounting Type | Withdrawable / Draw-out type |
| Application | Industrial power distribution systems |
| Brand | Siemens |
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