The Siemens 3WT8105-6UA34-5AB2 is a high-performance SENTRON 3WT8 series Air Circuit Breaker (ACB) designed for reliable protection, switching, and isolation of low-voltage power distribution systems. It is built for critical industrial applications where high fault level protection and continuous system reliability are required.
This model is a 4-pole withdrawable (draw-out) ACB rated at 1000A, equipped with an advanced ETU37WT electronic trip unit that provides LSING protection (Long-time, Short-time, Instantaneous, Ground fault). It is widely used in PCC panels, MCC panels, generator incomers, transformer feeders, and large industrial distribution systems.
• Siemens SENTRON 3WT8 Series ACB
• Part Number: 3WT8105-6UA34-5AB2
• 4-Pole withdrawable (draw-out) design
• Rated current: 1000A
• Frame size: Size 1
• Breaking capacity: 66 kA @ 500V AC
• Electronic Trip Unit: ETU37WT
• Protection functions: LSING (Overload, Short-circuit, Instantaneous, Earth fault)
• High short-time withstand capability (Icw 66kA/s)
• Motorized + manual stored-energy mechanism
• Withdrawable design for easy maintenance
• Mechanical lockout safety system
• Tripped indication & auxiliary signaling contacts
• Guide frame for smooth racking operation
• IEC 60947-2 compliant
• Suitable for heavy industrial duty applications
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT8 |
| Part Number | 3WT8105-6UA34-5AB2 |
| 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 |
| Rated Voltage (Ue) | Up to 500V AC |
| Insulation Voltage (Ui) | 1000V |
| Frequency | 50/60 Hz |
| Mounting Type | Withdrawable / Draw-out |
| Operating Mechanism | Manual + Motorized stored energy |
| Standard | IEC 60947-2 |
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