Siemens 3VL4731-1DC36-0AA0 VL400N Circuit Breaker Standard Breaking Capacity
Siemens 3VL4731-1DC36-0AA0 VL400N 3-pole circuit breaker, 315A
The Siemens 3VL4731-1DC36-0AA0 is a VL400N circuit breaker designed for standard breaking capacity applications. This 3-pole unit features a rated current (In) of 315A and a breaking capacity (Icu) of 55kA at 415V AC. It utilizes a TM (Thermomagnetic) trip unit with LI (Long-time and Instantaneous) protection. The overload protection (IR) is adjustable from 250A to 315A, and the short-circuit protection (II) is set from 1575A to 3150A. This model is intended for line protection and is supplied without auxiliary releases or auxiliary/alarm switches, functioning as a spare part for replacement purposes.
This circuit breaker is suitable for general-purpose power distribution and protection in industrial and commercial applications where a standard breaking capacity is sufficient. Industries such as building services, light manufacturing, and auxiliary power systems can utilize this breaker for reliable overcurrent and short-circuit protection. Its thermomagnetic trip unit offers a balance of protection and simplicity.
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| Part Number | 3VL4731-1DC36-0AA0 |
| Manufacturer | Siemens |
| Series | VL400N |
| Poles | 3 |
| Rated Current (In) | 315A |
| Breaking Capacity (Icu) | 55kA at 415V AC |
| Trip Unit | TM, LI |
| Overload Protection (IR) | 250-315A |
| Short-Circuit Protection (II) | 1575-3150A |
| Application | Line Protection |
| Type | Spare Part |