he Siemens 3WT8206-6AA08-5AB2 is a high-performance SENTRON 3WT8 Withdrawable Air Circuit Breaker (ACB) designed to provide advanced protection and reliable switching for low-voltage power distribution systems. Built with a Size 2 frame, 4-pole configuration, and a rated current of 2000A, this air circuit breaker offers an ultimate short-circuit breaking capacity (Icu) of 66kA at 500V AC, making it ideal for demanding industrial, commercial, utility, and infrastructure applications.
This withdrawable ACB is engineered for easy maintenance and safe operation. It comes complete with a guide frame, allowing the breaker to be quickly inserted or withdrawn without disconnecting the main power busbars. The integrated mechanical lockout device enhances operator safety by preventing unintended operation during maintenance, while the trip signaling switch and mechanical trip indicators provide clear visual and remote indication of breaker trip status for faster fault diagnosis and system restoration.
The 3WT8206-6AA08-5AB2 is equipped with a Siemens electronic trip unit, delivering precise protection against overloads, short circuits, and other electrical faults. Designed in accordance with IEC 60947-2, it ensures dependable performance, high electrical endurance, and long operational life. It is widely used as a main incomer, bus coupler, generator breaker, transformer protection breaker, and feeder breaker in critical power distribution systems.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3WT8206-6AA08-5AB2 |
| Product Series | SENTRON 3WT8 |
| Product Type | Withdrawable Air Circuit Breaker (ACB) |
| Frame Size | Size 2 |
| Rated Current (In) | 2000 A |
| Number of Poles | 4 Pole |
| Rated Operational Voltage | Up to 500 V AC |
| Frequency | 50/60 Hz |
| Ultimate Breaking Capacity (Icu) | 66 kA @ 500 V AC |
| Mounting Type | Withdrawable |
| Trip Unit | Siemens Electronic Trip Unit |
| Operating Mechanism | Stored Energy Mechanism |
| Mechanical Lockout Device | Yes |
| Trip Signaling Switch | Yes |
| Mechanical Trip Indicator | Yes |
| Guide Frame | Included |
| Application | Main Incomer, Feeder, Bus Coupler |
| Standard | IEC 60947-2 |
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