Schneider RZU 800 | Speed Controller 0.75kW-2.2kW AC Drive

The RZU 800 regulates motor speed for three-phase induction machines. This speed controller varies the frequency and voltage delivered to the motor. It provides smooth acceleration and deceleration for industrial equipment. Consequently, you save energy and reduce mechanical stress on driven loads.

You can use this drive for pumps, fans, and conveyors effectively. The RZU 800 offers both local control panel and remote signal inputs. It also includes protection against overcurrent, short circuit, and overheating. Therefore, this controller delivers reliable performance for continuous operation.

Power Ratings and Electrical Specifications

The drive supports motor power ranges from 0.75 kW up to 2.2 kW. The RZU 800 accepts single or three-phase 230V AC input supply. It delivers variable output from 0 to 230V at adjustable frequencies. The unit handles continuous output current up to 10 amperes.

A built-in EMC filter reduces electrical noise emissions significantly. The RZU 800 also includes a DC bus reactor for harmonic mitigation. It stores energy in a bank of electrolytic capacitors. Below is a complete breakdown of its technical characteristics.

Specification	Detail
Product Type	AC Speed Controller (VFD)
Motor Power Range	0.75 kW to 2.2 kW
Input Voltage	230V AC (Single or Three-phase)
Output Voltage	0 to 230V AC (Three-phase)
Frequency Range	0 to 120 Hz (Adjustable)
Continuous Output Current	10 A (Maximum)
Overload Capacity	150% for 60 seconds
Energy Storage	Electrolytic capacitor bank (450V/1000µF)
Dimensions (W x H x D)	160 mm x 250 mm x 185 mm
Weight	4.0 kg (Approx.)
Protection Rating	IP20 (Chassis mount)

Interface Layout and Control Connections

The front panel features an LCD display and membrane keypad. The RZU 800 includes analog input terminals for 0-10V or 4-20mA signals. Two digital inputs accept start, stop, and reverse commands from PLCs. A relay output provides fault indication or speed attainment signals.

The control terminal block accommodates wires from 0.2 to 1.5 mm². The RZU 800 also provides an RS-485 port for Modbus communication. This serial interface allows parameter access from a remote computer. Therefore, you can integrate the drive into automated control systems.

Operational Benefits for Industrial Applications

This speed controller reduces energy consumption compared to throttle valves. The RZU 800 maintains precise motor speed regardless of load variations. It also extends mechanical component life through soft starting functionality. Maintenance teams appreciate the built-in diagnostic features for fault logging.