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Siemens A7E11557020021 Vacuum Interrupter for Circuit Breakers

Siemens A7E11557020021 Vacuum Interrupter for medium-voltage circuit breakers.

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ManufacturerSiemens

Part numberA7E11557020021

Rated voltage 40.5 kV

Rated operating current 2500 A

Rated short-circuit breaking current 40 kA

Rated lightning pulse voltage 170/185 kV

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12-month warranty

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Veteran-owned

CAGE: 9NK75

High voltage rating High current capacity Robust short-circuit interruption Durable vacuum technology Designed for circuit breakers

Product description

The Siemens A7E11557020021 is a high-performance vacuum interrupter designed for use in medium-voltage circuit breakers. It features a rated voltage of 40.5 kV, a rated operating current of 2500 A, and a rated short-circuit breaking current of 40 kA. The interrupter also boasts a rated lightning impulse voltage of 170/185 kV, ensuring robust protection against voltage surges.

This vacuum interrupter is crucial for safely interrupting fault currents in electrical distribution systems. It is commonly applied in power substations, industrial facilities, and renewable energy installations where reliable circuit protection is paramount. Its design ensures long service life and minimal maintenance, making it a preferred choice for demanding applications.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens A7E11557020021 vacuum interrupter. We provide reliable access to essential industrial components, ensuring your operations continue with minimal downtime. Trust Stanlo Automation for your critical automation and electrical needs.

Technical specifications

Rated voltage	40.5 kV
Rated operating current	2500 A
Rated short-circuit breaking current	40 kA
Rated lightning pulse voltage	170/185 kV

Common applications

Power distribution

Industrial facilities

Substations

Renewable energy

Electrical protection systems

Compatible systems

Compatible with Siemens VS30041 circuit breaker assemblies

Also known as

Siemens VS30041 Vacuum interrupter 40.5kV Siemens circuit breaker component

Replaces / compatible with

This vacuum interrupter is a component for Siemens circuit breakers. It is designed to replace existing interrupter units within compatible Siemens breaker models.

Technical note

Expert tip

Ensure proper sealing and connection integrity to maintain the vacuum level for optimal interrupting performance.

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Frequently asked questions

What are the key specifications of the Siemens A7E11557020021 vacuum interrupter?

The Siemens A7E11557020021 vacuum interrupter is rated for 40.5 kV, operates at 2500 A, and can break 40 kA short-circuit currents. It also has a lightning impulse voltage rating of 170/185 kV.