The Siemens 3WT8161-6UA38-5AB2 is a SENTRON 3WT8 series Air Circuit Breaker (ACB) used for high-capacity low-voltage power distribution systems. It is designed for main incomer and feeder protection in PCC, MCC, transformer and generator panels.
This model belongs to the 1600A frame class (Size 1) and provides high fault interruption capacity of 66 kA @ 500V AC with advanced electronic protection.
• Siemens SENTRON 3WT8 series ACB
• Part Number: 3WT8161-6UA38-5AB2
• 3 Pole configuration
• Rated current: 1600A
• Breaking capacity: 66 kA @ 500V AC
• Type: Withdrawable (Draw-out) Air Circuit Breaker
• Trip unit: ETU37WT LSING (microprocessor-based protection)
• Protection functions: Overload, Short circuit, Earth fault
• Motorized / manual operating mechanism (variant dependent)
• Shunt release + auxiliary contacts included (configuration dependent)
• Mechanical lockout + trip indication system
• IEC 60947-2 compliant design
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT8 |
| Part Number | 3WT8161-6UA38-5AB2 |
| Product Type | Air Circuit Breaker (ACB) |
| Rated Current | 1600A |
| Poles | 3 Pole |
| Breaking Capacity | 66 kA @ 500V AC |
| Trip Unit | ETU37WT LSING |
| Type | Withdrawable / Draw-out |
| Rated Voltage | Up to 500V AC |
| Application | Industrial LT power distribution |
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