Dual power supply HZI812

Acts as an automatic power switch for motor drives

When one of the two power supply networks (1 or 2) fails, the unit automatically switches the control power to the other, functional line. It requires no manual intervention — the system continues operating without interruption, which is critical in applications where a drive outage could cause downtime or hazardous situations.

Control power supply 230 V AC from 200–288 V AC

Operates stably with an input voltage from 200 to 288 V AC, at both 50 Hz and 60 Hz. The output always maintains a constant 230 V AC — meaning that even with significant mains voltage fluctuations, motor control remains safe and precise. No additional voltage regulation or filtering is required.

Terminals for 6 mm² conductors

Both flexible and rigid cables can be connected — both types are supported without restrictions. This simplifies installation in various conditions: in a cabinet with limited space or where a rigid cable is required due to mechanical constraints. No additional connectors or adapters are needed.

Compliant with environmental and safety standards

It is halogen‑free and meets RoHS and REACH requirements — meaning it is environmentally safe and does not emit toxic substances even in case of damage or fire. This is important not only for the installer but also for the end customer, who expects products that comply with the latest building safety standards.

Modular mounting — 4 modules

It occupies exactly 4 modules on a DIN rail — so it fits easily into a standard cabinet. No additional mounting parts or special tools are required. The installer can connect it in parallel with other control components — contactors, relays or triggers — without spatial conflicts.

Who is it for? Those who cannot afford a downtime

This is not a regular power supply unit. It is a safety element for drive systems: gates, fans, pumps or production lines. If the power fails — and the drive must continue operating (e.g., to keep doors from closing in a medical building or to avoid stopping a cooling process) — this unit ensures continuous operation without the need to install batteries or generators.