• Amplifier Series/Model Number: MPA400
  • Max number of sub-modules supplied: 8
  • Max Power Output: 48 kVA
  • Max Output Voltage: 120 V rms
  • Max Output Current: 400 A rms
  • Number of Cabinets: 1
  • Amplifier Efficiency: > 92%
  • Max. Output Voltage: 120 V rms
  • Max. Output Current per module (Continuous): 50 A rms
  • Max. Output Current per module (Transient): 150 A rms
  • Amplifier Frequency Response: From DC (0.1 Hz) to 4,500 Hz: 3 dB; From 10 Hz to 3,000 Hz: 1 dB
  • Input Drive: 1.5 V rms into 10 k Ohms for full output 120 V rms
  • Input Impedence: 10 k ohm for direct coupled single ended connection. Output load connections are isolated from ground.
  • Signal-Noise-Ratio: More than 65 dB at 100 V rms output, 10 k ohm input termination with rated resistive load.
  • Total Harmonic Distortion (at max. output): From DC (0.1 Hz) to 500 Hz < 0.5%; From 500Hz to 4,500 Hz < 1.0%
  • Switching Frequency: 112 kHz
  • Stability: < 0.05% variation of full output voltage with a 10% change in line voltage
  • Inrush Current Limiting: Soft start with current sensing and fault detection
  • System interlock Protection: Microprocessor continuously monitors: Shaker overtravel, relay protection, amplifier fault, external trigger, system start/stop signals and aux. Interlocks
  • EMC Emissions: All systems comply with the European CE standards with full testing and certification from TUV-SUD Product Service GmbH - Tested according to EMC Directive 2004/108/EC EN61000-6-4:2001 EN61000-6-2:2005 - Tested according to Low Voltage Directive 2006/95/EC EN60204-1:1997.
  • Dimensions uncrated (W x D x H): 21.6 x 31.5 x 72.8 in (550 x 800 x 1850 mm)
  • Amplifier weight uncrated: 1.300 lb (590 kg)

MPA400 Series

The ETS Solutions MPA series amplifier family is a wide frequency band digital switching (Class D) Power Amplifier designed with latest state-of-the-art technology. A number of built-in features in the amplifier allow vibration testing to be performed with ease. User friendly operation and an interactive microprocessor logic control system ensures the MPA amplifier delivers full performance and is compatible with any make of electro-dynamic shaker. The MPA400 series amplifier is matched to the mk1 and mk2, M series shaker.

Logic Control Unit

Managed by high-speed microprocessor logic unit, the intelligence logic control system assures high output power with maximum safety protection. High switching frequency delivers low distortion with full power output over a broad frequency band.

Optional Accessories

Variable Field Power Supply. Auxiliary Interlock Unit (AIU) for additional safety interlock I/O points. Remote Control Panel via RS485 communication with full system control at a distance of 1,600 ft (500 m).