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Siemens 3VA9978-0AA13 Electronic Comp. Aux Switch for 3VA4/5/6

Siemens electronic comp. auxiliary switch, Type HQ (7mm) for 3VA4/5/6 MCCBs.

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ManufacturerSiemens

Part number3VA9978-0AA13

Contact Type Auxiliary Switch Changeover

Contact Rating HQ (7 mm)

Features Electronic Components

Compatible With Siemens 3VA4/5/6 Series MCCBs

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Auxiliary changeover contacts Type HQ (7 mm) Integrated electronic components For Siemens 3VA4/5/6 MCCBs Advanced signaling capability

Product description

The Siemens 3VA9978-0AA13 is a specialized accessory featuring auxiliary switch changeover contacts of Type HQ (7 mm) and includes integrated electronic components. Designed for Siemens 3VA4, 3VA5, and 3VA6 series molded case circuit breakers (MCCBs), this part offers advanced functionality beyond standard auxiliary switches.

This electronically enhanced auxiliary switch is suitable for sophisticated control and monitoring systems within industrial automation, power distribution, and building management. Its electronic components can enable more complex signaling or interfacing capabilities, making it valuable for applications requiring precise status reporting or integration with digital control platforms.

Stanlo Automation, a veteran-owned distributor, provides access to essential surplus industrial automation parts like the Siemens 3VA9978-0AA13. We are dedicated to offering quality components to ensure the continuity and efficiency of your operations. Rely on Stanlo Automation for your critical spare parts needs.

Technical specifications

Contact Type	Auxiliary Switch Changeover
Contact Rating	HQ (7 mm)
Features	Electronic Components
Compatible With	Siemens 3VA4/5/6 Series MCCBs

Common applications

Industrial control systems

Building management systems

Advanced power monitoring

Sophisticated automation

Digital interface applications

Compatible systems

Siemens 3VA4 Series MCCBs Siemens 3VA5 Series MCCBs Siemens 3VA6 Series MCCBs

Also known as

Siemens 3VA9978-0AA13 electronic aux switch Siemens HQ electronic auxiliary contacts 3VA4/5/6 breaker electronic accessory

Replaces / compatible with

This electronically enhanced auxiliary switch is an accessory for Siemens 3VA4, 3VA5, and 3VA6 circuit breakers and is not a direct replacement for other components.

Technical note

Expert tip

The electronic components in the 3VA9978-0AA13 require careful consideration for system integration, as they may have specific voltage or communication requirements beyond standard auxiliary contacts.

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Frequently asked questions

What distinguishes the Siemens 3VA9978-0AA13 from other auxiliary switches?

The Siemens 3VA9978-0AA13 is distinguished by its integrated electronic components, which allow for more advanced signaling and interfacing capabilities compared to standard auxiliary switches like the 3VA9978-0AA12.