Product Description
1VCF339751S8909 is a dedicated electric energy storage unit for ABB’s medium and high voltage vacuum circuit breakers. It is used to automatically charge and store energy for the circuit breaker’s closing spring, ensuring the circuit breaker has the capability to close quickly and reliably. The motor is equipped with a built-in deceleration mechanism, limit switches, and position feedback. It automatically cuts off power when the energy storage is complete and supports both electric and manual modes of energy storage. It is compatible with ABB’s mainstream medium voltage cabinet types, featuring original factory production, high reliability, and long lifespan.
Core parameters (original factory specifications)
Rated control voltage: 110–130 V AC/DC (±10%)
Applicable frequency: 50/60 Hz
Rated power: DC 100 W / AC 100 VA
Impact power: DC 300 W / AC 300 VA
Energy storage time: 4–5 seconds (E-type mechanism)
Impact time: 0.2 seconds (start-up peak)
Insulation withstand voltage: 2500 VAC / 1 min
Operating temperature: −20 ℃ ~ +70 ℃
Protection level: IP20 (installed in the cabinet)
Weight: Approximately 3.0 kg
Installation method: Bolted fixation, compatible with ABB standard mechanism interface
Main functions and features
Automatic energy storage:
Automatically charges the spring after closing, stops automatically when the energy storage is complete, without the need for manual intervention.
Manual backup: Can be manually stored through the mechanism lever when the power is off or during maintenance, ensuring safety during maintenance.
Position monitoring: Integrated limit / microswitches, allowing remote monitoring of “energized / not energized” status.
High reliability: Original factory production, compatible with VD4/VMAX/EVD4 and other mainstream medium voltage circuit breakers, with long lifespan and low failure rate.
Wide voltage adaptation: Supports 110–130 V AC/DC, compatible with common control power systems worldwide.
Typical applications
Medium voltage switch cabinets: ABB VD4, VMAX, EVD4, HYSec, ADVAC vacuum circuit breakers with energy storage motors.
Power distribution: Power plants, substations, industrial sites 10kV–35kV medium voltage systems.
Industrial critical loads: Metallurgy, cement, chemical, rail transit, data centers, etc., important circuits that cannot be interrupted.
Smart grid: Remote monitoring, automatic reclosing, frequent operation scenarios in automated distribution.
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