Schaefer, Inc.

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45 South Street
Hopkinton, MA 01748
About Schaefer, Inc.
  • Schaefer specializes in design and manufacture of highly rugged power supplies and power conversion systems used in applications requiring high reliability under severe ambient conditions.

    Schaefer’s complete line of state-of-the-art, high efficiency, wide temperature range power conversion products include: AC/DC & DC/DC Converters (50W – 40 kW+)
    DC/AC Inverters (200VA – 30 kVA)
    Battery chargers (150W – 40 kW+)
    Step-up Converters (50W – 22 kW).

    All products are designed to meet the needs of light & heavy rail applications. Custom and modified designs, tailored to the customer's specific requirements are easily handled, often with little or no NRE.
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