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STACO Steel-cased variable-voltage controllers

Minimize voltage variation from no-load to full-load current conditions
Reduce the need to readjust the output voltage as load changes. Simply turn the control knob clockwise to increase output linearly. Unlike solid-state controls, these units do not cause waveform distortion—eliminating errors in voltage and current measurement.
Select a ventilated, steel cased model for your benchtop applications or general utility mounting.
What's included: a 6-ft grounded cord with plug, a three-conductor receptacle, pilot light, fuse, and a double pole on/off switch which disconnects both sides of the line to prevent electrical shock.
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8 variations of this product are available.

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8 PRODUCT OPTIONS
Compareitem specifications
Input (VAC) Output (amps) Output (VAC)
Availability Pricing
Staco 3PN1010B Variable-Voltage Controller, 10 A; 120 V In, 0-140 V Out EW-01575-00 Mfr # 3PN1010B
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120 10 0 to 140
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Staco 3PN501B Variable-Voltage Controller, 5 A; 120 V In, 0-140 V Out EW-01575-02 Mfr # 3PN501B
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120 5 0 to 140
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Staco 3PN1020B Variable-Voltage Controller, 3.5 A; 240 V In, 0-280 V Out EW-01575-05 Mfr # 3PN1020B
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240 3.5 0 to 280
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Staco 3PN1510B Variable-Voltage Controller, 15 A; 120 V In, 0-140 V Out EW-01575-10 Mfr # 3PN1510B
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120 15 0 to 140
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Staco 3PN1520B Variable-Voltage Controller, 9.5 A; 240 V In, 0-280 V Out EW-01575-15 Mfr # 3PN1520B
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240 9.5 0 to 280
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Staco 3PN2210B Variable-Voltage Controller, 22 A; 120 V In, 0-140 V Out EW-01575-28 Mfr # 3PN2210B
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120 22 0 to 140
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Staco 3PN2520B Variable-Voltage Controller, 10 A; 240 V In, 0-280 V Out EW-01575-30 Mfr # 3PN2520B
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240 10 0 to 280
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Staco 501C Variable Transformer, 120V/5A, open EW-20012-48 Mfr # 501C
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120 5 0 to 140
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