FR-S520E-0.4K

What type of industrial component is this?

It is a compact variable frequency inverter used to control the speed and torque of an AC induction motor. The FR-S520E-0.4K is rated for 0.4 kW motor applications in a 200 to 240 V AC class installation.

What motor size is this inverter designed for?

This unit is intended for a 0.4 kW motor load. It is typically used on small industrial motors where controlled acceleration, deceleration, and variable speed operation are required.

What voltage class does this inverter belong to?

This inverter is part of the 200 V class and is commonly associated with 220 V AC industrial motor control applications. For installation, the supply and motor ratings should be checked against the machine requirements.

What kind of motor can it control?

It is designed for use with AC induction motors. It provides variable frequency output to regulate motor speed in applications such as conveyors, pumps, fans, small machinery, and automated equipment.

What is the rated power output?

The rated motor capacity is 0.4 kW. This makes it suitable for compact machinery and lower-power drive applications where precise speed control is needed.

Can this inverter be replaced by a newer model?

A commonly referenced replacement path for this 200 V class 0.4 kW unit is the FR-D720-0.4K. When replacing an installed unit, wiring, terminal layout, dimensions, and parameter values should be reviewed before installation.

Are the mounting dimensions compatible with the newer 0.4 kW replacement model?

Replacement documentation indicates that the FR-S520E 0.4 kW model and the FR-D720 0.4 kW model have compatible mounting dimensions, helping reduce panel modification work during retrofit projects.

What control methods are associated with the replacement series?

The replacement FR-D700 series uses control methods including V/F control, magnetic flux vector control, and Soft-PWM/high-frequency PWM control. These methods help provide stable motor operation across a range of speeds.

What should be checked before fitting a replacement inverter?

Key checks include input voltage, motor rating, control wiring, braking resistor use, terminal functions, enclosure space, and existing parameter values. Some parameters may transfer directly, while others may need to be adjusted for the replacement unit.

Does this inverter have braking resistor terminals?

For the FR-S520E range, the 0.4 kW to 3.7 kW models are noted as having a PR terminal, which is associated with braking resistor connections. The exact braking setup should be verified against the machine configuration before installation.

What terminal size is used for the main circuit connections?

For 200 V class models in the 0.1 kW to 0.75 kW range, the main circuit terminal screw size is listed as M3.5. This includes the 0.4 kW size class.

What are common applications for this inverter?

Common uses include speed control for small conveyors, fans, pumps, mixers, packaging machines, and other compact industrial equipment requiring controlled motor acceleration and deceleration.

What commodity code applies to this type of part?

The commodity code held for this inverter is 850440. This classification is consistent with static converters, which includes many industrial inverter drives.