Zarec4C – Power Feedback / Recuperation Unit

The ZArec4C is a power feedback / recuperation unit specifically developed for brief, highly dynamic regenerative operation in elevator systems. It captures the unused energy generated during elevator travel that would otherwise be converted to waste heat by a brake resistor, preprocesses it, and feeds it back into the power supply network. The unit features an extremely flat design for wall mounting in the machine room or elevator shaft. It provides sinusoidal regenerative power through integrated EMC components with a distortion factor THD < 5%, meeting EN 12015 electromagnetic compatibility requirements. The ZArec4C is available in three models with recuperation power from 5 kW to 15 kW and transferable output up to 39 kW. No additional brake resistor is required for evacuation runs.