The Siemens 3WT8105-6UA34-5AK2 is a high-performance SENTRON 3WT8 series Air Circuit Breaker (ACB) designed for protection, control, and isolation of low-voltage electrical power distribution systems. It ensures safe and reliable operation by offering advanced protection against overload, short circuit, and earth fault conditions.
This breaker is a withdrawable (draw-out) type ACB used in critical industrial applications such as PCC panels, MCC panels, generator incomers, and transformer feeders, where high fault level protection and operational reliability are essential.
• Siemens SENTRON 3WT8 Series ACB
• Part Number: 3WT8105-6UA34-5AK2
• 4-Pole withdrawable (draw-out) construction
• Rated current: 1000A
• Frame size: Size 1
• Breaking capacity: 66 kA @ 500V AC
• Electronic Trip Unit: ETU37WT (LSING protection)
• Protection functions: Overload, Short circuit, Instantaneous, Earth fault
• High short-time withstand capacity (Icw 66kA/s)
• Motorized + manual stored energy mechanism
• Electrical and mechanical operation support
• Tripped indication & signaling contacts
• Mechanical lockout safety system
• Guide frame for smooth racking in/out
• IEC 60947-2 compliant
• Suitable for heavy industrial duty applications
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT8 |
| Part Number | 3WT8105-6UA34-5AK2 |
| Product Type | Air Circuit Breaker (ACB) |
| Number of Poles | 4 Pole |
| Rated Current (In) | 1000A |
| Frame Size | Size 1 |
| Breaking Capacity (Icu) | 66 kA @ 500V AC |
| Short-Time Withstand (Icw) | 66 kA/s |
| Trip Unit | ETU37WT (Microprocessor-based) |
| Protection | LSING (Overload, Short, Instantaneous, Earth Fault) |
| Rated Voltage (Ue) | Up to 500V AC |
| Insulation Voltage (Ui) | 1000V |
| Frequency | 50/60 Hz |
| Mounting Type | Withdrawable / Draw-out |
| Operating Mechanism | Motorized + Manual stored energy |
| Standard | IEC 60947-2 |
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