For example: Agilent E4440A or Anritsu 68369
Sorensen Electronic Loads
Sorensen SLH-300-12-1200
300V, 12A, 1200W rack mounted, programmable AC/DC load
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Manufacturer: Sorensen
Sorensen SLH-300-12-1800
300V, 12A, 1800W rack mounted, programmable AC/DC load
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Manufacturer: Sorensen
Sorensen SLH-300-18-1800
300V, 18A, 1800W rack mounted, programmable AC/DC load
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Manufacturer: Sorensen
Sorensen SLH-500-4-1200
500V, 4A, 1200W rack mounted, programmable AC/DC load
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Manufacturer: Sorensen
Sorensen SLH-500-6-1800
500V, 6A, 1800W rack mounted, programmable AC/DC load
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Manufacturer: Sorensen