Autotransformer A3RM 7.0/1 400-280-230-180-130 V 17786-9983

Three-phase autotransformer speed controller A3RM 7.0/1

This three-phase autotransformer A3RM 7.0/1 is a reliable solution for five-stage speed control of fan motors in industrial installations. The device is designed for use in ventilation and heating systems where precise engine speed control is required. The autotransformer design allows for effective voltage control, which translates into smooth and stable fan operation.

Characteristics and application

The A3RM autotransformer allows you to adjust the output voltage to five levels: 400V, 280V, 230V, 180V and 130V. This flexibility allows you to adjust the engine speed to current needs, optimizing energy consumption and ensuring comfortable operation. The open design facilitates installation in existing installations, and the solid construction guarantees long-lasting and trouble-free operation. The device is particularly useful in applications requiring precise control of airflow or temperature.

Advantages and benefits

• Versatility: controller adapted to work with motors with an output current of up to 7A (depending on the model).
• Easy installation: open design facilitates integration with existing ventilation and heating installations.
• Reliability: solid construction and compliance with EN61558-2-13 ensure safe and long-lasting operation.
• Five-stage regulation: precise control of engine speed thanks to five output voltage levels.
• Energy consumption optimization: the ability to adjust the rotational speed to current needs allows you to reduce the power consumption of the engine.
• Manufactured to standards: ensures safe use and compatibility with other electrical installation elements.

The device operates at an input voltage of 3x400V and a frequency of 50/60Hz. It provides five-stage adjustment of the output voltage at levels of 400V, 280V, 230V, 180V and 130V. It has a protection class of IP00 and an insulation class of B (130°C). The controller's output current is 7.0 A.

The A3RM controller is an optimal choice for both professional installers and end-users looking for a reliable and efficient solution for controlling the speed of fan motors. Its solid construction and compliance with applicable standards guarantee safe and long-lasting operation in demanding industrial conditions.