Siemens 3VA6 UL Frame 400A Circuit Breaker (3VA6340-8HN31-0AA0)
Siemens 3VA6 UL Frame 400A 3-pole circuit breaker with ETU350 LSI.
The Siemens 3VA6340-8HN31-0AA0 is a 3-pole circuit breaker from the 3VA6 UL Frame series, designed for high-performance protection. It features a breaking capacity of class L, rated at 150 kA at 480V. This breaker is equipped with the ETU350 electronic trip unit, offering LSI (Long-time, Short-time, Instantaneous) protection functions. The nominal current (In) is set at 400A, with adjustable overload protection (Ir) from 160A to 400A and adjustable short-circuit protection (Isd) from 1.5 to 10 times Ir, and instantaneous short-circuit (Ii) at 10 times In. It is supplied without connection components.
This circuit breaker is engineered for robust protection in industrial power distribution systems, motor control centers, and facility power management. Its high breaking capacity and advanced trip unit make it suitable for applications demanding reliable fault current interruption.
Stanlo Automation, a veteran-owned company specializing in surplus industrial automation parts, offers the Siemens 3VA6340-8HN31-0AA0 circuit breaker. Equip your systems with high-quality protective devices from a trusted supplier.
| Series | 3VA6 UL Frame |
| Frame Size | 400 |
| Breaking Capacity | Class L, 150 kA @ 480V |
| Poles | 3 |
| Trip Unit | ETU350 |
| Protection | LSI (Overload, Short-time, Instantaneous) |
| Nominal Current (In) | 400 A |
| Overload Adjustment (Ir) | 160...400 A |
| Short-circuit Adjustment (Isd) | 1.5...10 x Ir |
| Instantaneous Trip (Ii) | 10 x In |
| Connection | Without connection components |