by Celeroton AG

Converter CC-550-7500

  • Operation of turbo compressor from wide output voltage range of the fuel cell or battery (300–500 VDC)
  • Rated output power 7.5 kW of converter
  • Various cabling options available
  • Sensorless speed control up to 300,000 rpm
  • Protection class IP67
  • Low voltage power input (10 – 36 VDC) for control and start-up of the turbo compressor from battery
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Celeroton Converters

Sensorless control – from standstill to 1 million rpm. All of our converters allow sensorless control of permanent magnetic synchronous machines (PMSM) and brushless DC motors (BLDC).

The tuning of the modulation and control systems of our motors and turbo compressors, or of your electric motor, guarantees the highest converter operating efficiency and reduced motor losses. In the same converter we can operate with both pulse-width modulation (PWM), with varying switching frequencies, and pulse-amplitude modulation (PAM). Thanks to PAM technology, the output filter between Motor and Converter can be eliminated.

A Celeroton developed sensorless control method allows for complete speed control without an encoder or Hall sensors. Auto tuning, automatic control parameterization and support from Celeroton engineers results in a simple and fast commissioning.

Key benefits

Converter for driving ultra-high-speed turbo compressors in fuel cells systems.

  • Operation of turbo compressor from wide output voltage range of the fuel cell or battery (300–500 VDC)
  • Rated output power: 7.5 kW
  • Various cabling options available
  • Sensorless speed control up to 300,000 rpm
  • Protection class IP67
  • Low voltage power input (10 – 36 VDC) for control and start up of the turbo compressor from battery

Our converter works best with our compressor CT-25-10000.GB

See product details here

Weight5.4 kg
Dimensions30 × 19 × 8 cm
Max Input Voltage (in V)

Min Input Voltage (in V)

Max Power (in kW)

Type of input current

Electronic Control Interface

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Max Rotational Speed (in rpm)

Type of Cooling

Min Ambient Temperature (in °C)

Max Ambient Temperature (in °C)

Ingress Protection Rating

Technology Readiness (TRL)

Manufacturing Readiness (MRL)

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Datasheet Celeroton Converter CC 550 7500

Datasheet with technical specifications

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    Celeroton AG

    We reduce volume and weight with high rotational speed. Celeroton is a world leading supplier of gas-bearing turbo compressors. We are a system provider for compressors including converters for fuel cells.

    Ultra-high-speed turbo compressors with contact-free and oil-free gas bearings enable outstanding solutions in terms of compactness, service life and performance. Compared to compressors with standard speeds, our systems are significantly lighter and smaller as well as extremely efficient.

    With all system expertise under one roof, Celeroton connects all interdisciplinary technology areas to create one functioning and optimized overall system.

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