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Siemens 3VA6 UL Frame 400 Circuit Breaker, 250A, LSI Protection

Siemens 3VA6 UL Frame 400 3-pole circuit breaker with LSI.

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ManufacturerSiemens

Part number3VA6325-6HN31-0AA0

Manufacturer Siemens

Part Number 3VA6325-6HN31-0AA0

Series 3VA6 UL Frame 400

Poles 3

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UL Listed High breaking capacity (65 kA) ETU350 electronic trip unit Adjustable LSI protection 3-pole design Line protection

Product description

The Siemens 3VA6325-6HN31-0AA0 is a 3-pole circuit breaker from the 3VA6 UL Frame 400 series, offering a breaking capacity of 65 kA at 480 V. It is equipped with an ETU350 electronic trip unit providing LSI (Long-time, Short-time, Instantaneous) protection. The nominal current (In) is 250 A, with adjustable overload protection (Ir) from 100 A to 250 A, adjustable short-time delay (Isd) from 1.5 to 10 times Ir, and instantaneous trip (Ii) at 12 times In. This breaker is designed for line protection.

This advanced circuit breaker is suitable for demanding industrial applications requiring precise and adjustable protection against various electrical faults. Its LSI functionality makes it versatile for protecting feeders, motors, and other critical equipment in manufacturing and process industries.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3VA6325-6HN31-0AA0. We are committed to providing high-quality surplus industrial automation components. Trust Stanlo Automation for your critical parts needs, ensuring your systems remain efficient and protected.

Technical specifications

Manufacturer	Siemens
Part Number	3VA6325-6HN31-0AA0
Series	3VA6 UL Frame 400
Poles	3
Breaking Capacity	65 kA @ 480 V
Trip Unit	ETU350
Protection	LSI
In	250 A
Ir	100 A - 250 A
Isd	1.5 - 10 x Ir
Ii	12 x In
Connection	Without

Common applications

Industrial power distribution

Motor protection

Machinery protection

Control panels

Manufacturing automation

Electrical switchgear

Compatible systems

Industrial automation systems Power distribution panels Siemens control gear Electrical switchboards

Also known as

Siemens 3VA6 breaker 3VA6 UL Frame 400 LSI Siemens 250A circuit breaker 3VA63256HN310AA0

Replaces / compatible with

Replaces Siemens 3VA6 circuit breakers requiring UL Frame 400 with LSI protection. Compatible with systems needing 65kA interrupting capacity at 480V.

Technical note

Expert tip

The adjustable Isd (short-time delay) feature on the ETU350 allows for coordinated tripping with upstream protective devices or for allowing temporary inrush currents during motor starts.

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Frequently asked questions

What is the advantage of LSI protection with the ETU350 on the 3VA6325-6HN31-0AA0?

The ETU350 with LSI protection on the Siemens 3VA6325-6HN31-0AA0 allows for adjustable long-time, short-time, and instantaneous trip settings. This provides granular control over overload and short-circuit events, enabling better system coordination and equipment protection compared to simpler LI protection.