SENTRON 3VA - Accessories - 3VA9988-0BL20

Product Description

Siemens SENTRON 3VA – Accessories – 3VA9988-0BL20

The Siemens 3VA9988-0BL20 is a shunt trip (auxiliary release) accessory for SENTRON 3VA molded case circuit breakers (MCCB). It is used for remote tripping of the breaker through an external control voltage, enabling safe and fast disconnection of power in automation and protection systems.

This accessory is commonly used in emergency shutdown (E-stop) circuits, fire alarm systems, industrial automation panels, and remote safety interlocking systems, where MCCB tripping must be controlled electrically from a control room or safety device.

It is compatible with 3VA1 and 3VA20–3VA26 MCCB series and operates with a wide AC control voltage range (typically 380–600 V AC, 50/60 Hz), ensuring flexible integration in industrial electrical systems. 

Key Features:

• Shunt trip / auxiliary release for Siemens SENTRON 3VA MCCB 

• Enables remote electrical tripping of circuit breaker 

• Control voltage: 380–600 V AC, 50/60 Hz 

• Suitable for emergency shutdown and safety systems 

• Internal plug-in accessory design for easy installation 

• High reliability industrial-grade construction 

• Compatible with 3VA1 and 3VA20–3VA26 MCCBs 

• Designed for automation and interlocking applications 

• Long mechanical and electrical service life