The Siemens 3WT8081-6AA08-5AB2 is a SENTRON 3WT series Air Circuit Breaker (ACB) designed for reliable protection, switching, and isolation of low-voltage power distribution systems. This 3-pole draw-out type ACB is equipped with an advanced electronic trip unit (ETU37WT) offering overload, short-circuit, and earth fault protection. It is suitable for critical power distribution applications in industrial plants, commercial buildings, PCC panels, MCC systems, and generator incomer/outgoing feeders. The breaker provides high breaking capacity, excellent operational reliability, and long service life for demanding electrical installations.
• Siemens SENTRON 3WT series Air Circuit Breaker (ACB)
• Part Number: 3WT8081-6AA08-5AB2
• 3-Pole draw-out type circuit breaker
• Rated current: 800A
• Electronic Trip Unit ETU37WT
• LSING protection functions (Long Time, Short Time, Instantaneous & Ground Fault)
• High breaking capacity: 66kA
• Rated operational voltage up to 500V AC
• Draw-out execution for easy maintenance and replacement
• Overload, short-circuit and earth fault protection
• Mechanical lockout and trip indication facility
• Manual operating mechanism with stored energy system
• Suitable for PCC, MCC and main LT distribution panels
• High mechanical and electrical endurance
• Busbar connection arrangement
• Complies with IEC 60947-2 standards
• Ideal for industrial, infrastructure and commercial power distribution applications
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT |
| Part Number | 3WT8081-6AA08-5AB2 |
| Product Type | Air Circuit Breaker (ACB) |
| Number of Poles | 3 Pole |
| Rated Current (In) | 800A |
| Trip Unit Type | Electronic Trip Unit ETU37WT |
| Protection Functions | LSING (Overload, Short Circuit & Ground Fault) |
| Breaking Capacity (Icu) | 66kA |
| Rated Operational Voltage | Up to 500V AC |
| Frequency | 50/60 Hz |
| Mounting Type | Draw-Out / Withdrawable |
| Operating Mechanism | Manual Stored Energy Mechanism |
| Connection Type | Busbar Connection |
| Protection Class | IP20 |
| Insulation Voltage (Ui) | 1000V |
| Impulse Withstand Voltage (Uimp) | 12kV |
| Mechanical Life | Up to 10,000 Operations |
| Electrical Endurance | Up to 6,000 Operations |
| Standard Compliance | IEC 60947-2 |
| Application | PCC Panels, MCC Panels, LT Distribution Boards, Generator Incomers, Industrial Power Distribution |
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