The Siemens 3WT8105-6UP34-5AB2 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 is built for heavy industrial applications where high fault levels, reliable switching, and system safety are critical.
This model is a 4-pole withdrawable (draw-out) ACB rated at 1000A, equipped with an advanced ETU37WT microprocessor-based trip unit that ensures precise protection against overload, short circuit, instantaneous faults, and earth leakage conditions.
• Siemens SENTRON 3WT8 Series ACB
• Part Number: 3WT8105-6UP34-5AB2
• 4-Pole withdrawable (draw-out) design
• Rated current: 1000A
• Frame size: Size 1
• Breaking capacity: 66 kA @ 500V AC
• Trip Unit: ETU37WT (LSING protection)
• Protection functions: Overload, Short circuit, Instantaneous & Earth fault
• High short-time withstand capability (Icw 66kA/s)
• Motorized + manual stored-energy operating mechanism
• Draw-out (withdrawable) design for easy maintenance
• Mechanical lockout system for safety
• Tripped indication + auxiliary signaling contacts
• Guide frame for smooth racking operation
• IEC 60947-2 compliant
• Suitable for industrial and infrastructure-grade power systems
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT8 |
| Part Number | 3WT8105-6UP34-5AB2 |
| 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 (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 | Manual + Motorized stored energy |
| Standard | IEC 60947-2 |
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