6SL3710-1GE37-5AA3

What type of industrial equipment is this unit?

This unit is a Siemens SINAMICS G150 cabinet frequency converter designed to control the speed and torque of large three-phase AC motors in demanding industrial applications.

What motor power ratings can the converter handle?

The converter is rated at 400 kW for low-overload operation and 315 kW for high-overload operation. The appropriate rating depends on the motor load profile and required overload capacity.

What supply voltage does the converter require?

It is designed for a 400 V AC supply with a permitted variation of ±10% and a supply frequency range of 47 to 63 Hz.

What is the rated input current?

The rated input current is 775 A. The electrical installation and upstream protection must be appropriately specified for this current and the application conditions.

What output voltage does the unit provide?

The converter provides a rated output voltage of 400 V for controlling a compatible three-phase AC motor.

What are the output current ratings?

The general rated output current is 745 A. The listed low-overload and high-overload current ratings are 725 A and 570 A respectively, with a maximum output current of 1087 A.

Does this converter return braking energy to the mains?

No. The standard 6SL3710-1GE37-5AA3 is a two-quadrant converter and does not have regenerative capability.

What degree of enclosure protection does the standard version provide?

The standard configuration has an IP20 protection rating. Configured variants may have different enclosure ratings, so any option suffixes should be checked before selection.

What are the cabinet dimensions?

The standard cabinet measures approximately 2000 mm high, 1200 mm wide and 600 mm deep. Optional equipment and alternative enclosure configurations can increase these dimensions.

How much does the converter weigh?

The standard unit weighs approximately 750 kg. The final weight may be higher when factory options or additional cabinet equipment are included.

How is the converter cooled?

The unit is air-cooled and requires an airflow of approximately 0.78 m³/s. The installation area must provide adequate ventilation and clearance for heat dissipation.

What ambient conditions are specified for operation?

The specified ambient temperature range is 0°C to 40°C, with a standard installation altitude of up to 1000 metres. Operation outside these conditions may require derating or additional engineering assessment.

What is the converter's approximate power loss?

The standard configuration has a stated power loss of approximately 9.88 kW. This heat output should be considered when specifying room ventilation or cabinet-area cooling.

What efficiency class does the converter meet?

The converter is classified as IE2 under IEC 61800-9-2, based on the stated loss values for the standard unit with an input reactor and without additional options.

What is the factory-set pulse frequency?

The factory-set pulse frequency is 1.25 kHz. Application requirements such as motor characteristics, acoustic behaviour and cable arrangement should be considered during commissioning.

What is the maximum permitted conductor cross-section?

The listed maximum IEC conductor arrangement is 4 x 240 mm². Actual cable selection must account for current capacity, installation method, conductor material and local electrical requirements.

What types of machinery commonly use this converter?

Typical uses include large pumps, fans, compressors, conveyors, mixers and other high-power motor-driven machinery requiring controlled acceleration, adjustable speed and managed torque.

What should be checked when replacing an existing converter?

Check the complete ordering code, supply voltage, motor power, current ratings, overload duty, enclosure rating, cabinet dimensions, cooling requirements, control arrangement and any fitted option codes. A base model and an optioned model may differ significantly.

What do low-overload and high-overload ratings mean?

Low-overload duty is intended for applications with relatively modest short-term overload demands, such as many pumps and fans. High-overload duty provides greater overload capacity for more demanding loads, but at the lower rated power of 315 kW.

Can optional configurations differ from the standard cabinet?

Yes. Optioned versions may include items such as a main switch, line contactor, motor reactor, additional terminal modules, cabinet lighting, EMC components or higher enclosure protection. These options can affect dimensions, weight, losses and connection requirements.