The Siemens 3WT8165-6UA38-5BC2 is a SENTRON 3WT8 withdrawable Air Circuit Breaker (ACB) designed for high-performance protection of low-voltage power distribution systems. Featuring a 4-pole configuration, Size 1 frame, 1600A rated current, and an ultimate short-circuit breaking capacity (Icu) of 66kA at 500V AC, this ACB delivers dependable protection for critical electrical installations in industrial, commercial, and infrastructure applications. It complies with IEC 60947-2 standards for safe and reliable circuit protection.
This withdrawable circuit breaker is equipped with a mechanical lockout device, trip signaling switch, trip indicators, and a guide frame, allowing safe isolation, easy maintenance, and quick replacement without disturbing the main power connections. The breaker is fitted with an ETU38WT electronic trip unit offering advanced protection functions and adjustable settings for overload, short-circuit, and fault protection according to the application requirements.
The 3WT8165-6UA38-5BC2 is engineered for demanding applications such as main incomers, bus couplers, generator protection, transformer protection, and power distribution systems. Its robust construction, high electrical endurance, and withdrawable design minimize downtime while ensuring maximum operational safety and system reliability.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3WT8165-6UA38-5BC2 |
| Product Series | SENTRON 3WT8 |
| Product Type | Withdrawable Air Circuit Breaker (ACB) |
| Frame Size | Size 1 |
| Rated Current (In) | 1600 A |
| Number of Poles | 4 Pole |
| Rated Operational Voltage | Up to 500 V AC |
| Frequency | 50/60 Hz |
| Breaking Capacity (Icu) | 66 kA @ 500 V AC |
| Mounting Type | Withdrawable |
| Trip Unit | ETU38WT Electronic Trip Unit |
| Operating Mechanism | Manual Stored Energy Mechanism |
| Mechanical Lockout Device | Yes |
| Tripped Signaling Switch | Yes |
| Tripped Indicators | Yes |
| Guide Frame | Included |
| Standards | IEC 60947-2 |
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