Siemens Undervoltage Release Accessory for 3VA Molded Case Circuit Breaker Czech Republic 3VA9908-0BB25

Siemens 3VA9908-0BB25 is an undervoltage release accessory designed for 3VA molded case circuit breakers with current ratings up to 630 amperes. It is manufactured in the Czech Republic and complies with standards including UKCA, CE, REACH, RoHS, EAC, and WEEE.

This accessory features auxiliary and alarm switches that are implemented as changeover contacts, providing significant flexibility for planning and installation within various electrical installations.

The auxiliary switches detect and signal the position of the main contacts of the molded case circuit breaker to enable accurate status monitoring. Trip alarm switches signal any circuit breaker trip event irrespective of the cause, enhancing system diagnostics and safety.

The undervoltage release function trips the circuit breaker if the supply voltage falls to between 70% and 35% of the rated voltage, protecting electrical circuits against undervoltage conditions. Rated voltages available include 230 VAC and 24 VDC models to suit diverse power systems.

Used widely in electrical automation, commercial, industrial, and manufacturing electrical safety systems, this device contributes to protecting equipment and personnel by ensuring swift disconnection under fault or undervoltage conditions.

The device integrates easily with Siemens 3VA molded case circuit breakers and supports robust and reliable circuit control in demanding environments. This undervoltage release trips the circuit breaker when the rated voltage drops between 70% and 35% of normal voltage.

Includes auxiliary and alarm changeover switches for flexible electrical system monitoring. Signals the position of main contacts and trip alarms for comprehensive fault indication. Available with rated voltages of 230 VAC and 24 VDC to match installation requirements.

Manufactured in Czech Republic with compliance to multiple international standards including UKCA and CE. Essential component for industrial, commercial, and automation applications involving 3VA MCCBs. Explore the Siemens range in the Circuit Breaker Accessories category on EnvMart to find compatible products and expand your electrical protection solutions.