Carlo Gavazzi RSE4803-B three phase soft starter, a 3 A AC motor controller designed for controlled starting and stopping of industrial induction motors.
£209.05
The Carlo Gavazzi RSE4803-B is a compact and reliable three-phase AC semiconductor motor controller (soft starter) designed for controlled starting and stopping of three-phase induction motors. As part of the Carlo Gavazzi RSE series motor controller range, it provides smooth motor acceleration, reduced mechanical stress and improved operational reliability in industrial automation applications.
This DIN rail mounted soft starter uses semiconductor switching technology with an integrated bypass function to provide efficient motor control while reducing the current surge associated with direct-on-line starting. The RSE series offers flexible control options, LED indication and compact installation for modern electrical control panels.
With a 3 A rated operating current, a 408–552 V AC operating voltage range and support for three-phase motor applications, the RSE4803-B is ideal for compact motor control systems requiring reliable soft starting and stopping.
Soft starters such as the Carlo Gavazzi RSE4803-B control motor starting and stopping by gradually managing power delivery to three-phase induction motors. This reduces mechanical shock, limits starting current peaks and helps improve the service life of motors and connected machinery.
The RSE series is designed for industrial automation engineers requiring compact motor control solutions. Its integrated bypass, flexible control supply options and DIN rail mounting format allow easy integration into electrical control systems.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | RSE Series |
| Model | RSE4803-B |
| Product type | Three-phase soft starter / motor controller |
| Rated operating current | 3 A |
| Rated operating voltage | 408–552 V AC |
| Control voltage | 24–110 V AC/DC and 110–480 V AC |
| Motor phases | Three-phase |
| Control method | 2-phase control |
| Internal bypass | Yes |
| Mounting type | DIN rail mounting |
| Protection rating | IP20 |
| Width | 45 mm |
| Height | 82 mm |
| Depth | 102.5 mm |
The RSE4803-B is used for soft starting and stopping three-phase induction motors in industrial automation and motor control applications.
The Carlo Gavazzi RSE4803-B has a rated operating current of 3 A.
The unit operates with a rated operating voltage range of 408–552 V AC.
Yes, the RSE4803-B includes an integrated bypass function to improve efficiency after the motor reaches operating speed.
The soft starter is designed for DIN rail mounting inside industrial electrical control panels.
Carlo Gavazzi RSE series soft starters provide reliable motor control solutions for industrial machinery, reducing mechanical stress and improving system performance.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...