- 3 to 15hp Drives : 0.5 Second 100% Outage -

The M3534CR series of DC Bus Ride-Thru Modules provide protection from line voltage outages for 208-460 VAC variable frequency drives (VFDs) that use a fixed rectifier and DC bus. Industries with continuous processes can suffer huge losses from equipment downtime, loss of production, or damaged product when Variable Speed Drives (VFDs) trip on under voltage conditions. While many drives claim to have ride through capability such as auto restart or kinetic buffering, none are able to maintain complete control over the motor as called upon by the process during a complete loss of power.

While the M3534RT is a small and cost effective method of protecting drives from voltage sags up to 50%, some sags are greater in depth, and some feeds with automatic re-closure systems may have up to 2 second complete outages. The M3534CR provides sufficient Ride-Thru capability to handle these deep sags and outages by storing energy in electrolytic capacitor banks and releasing it back into the drives DC bus when needed. This allows the drive to “ride through” these events while, MAINTAINING MOTOR SPEED and TORQUE, without experiencing drive shutdown.

The M3534CR is the most cost effective product to Ride-Thru short term outages with drive systems from 3-15hp.