Answering The Call For Power Telephone: (518) 245-4400 Mon-Thurs 7:00 a.m. - 5:30 p.m. EST

Power Transformer – Submersible (2.5kVA)

Espey designed, developed and manufactured several magnetic components for a prime US Navy contractor for use in a submersible sonar system. These components are unique in their inherently low noise, high reliability characteristics.

Electrical Specifications

  • Rating: 2.5kVA
  • Input: 450V, 400Hz, 3 phase
  • Output: 207V/66.5V
  • Regulation: < 2% (no-load to full-load)
  • Electro-statically shielded
  • Input/Output Isolation

Mechanical Specifications

  • Weight: 25lbs
  • Submersible
  • Cold-Plate mounted


  • Sonar Power Supply Isolation Transformer
  • Submersible
  • Design inherent Low Noise [MIL-STD-740-1 and MIL-STD-740-2]


  • MIL-PRF-27F Grade 5
  • Shock: MIL-S-901D Grade A
Click here for the PDF version.