Description
Staco 3PN500B Adjust-A-Volt Variac 120V In 0-140V Out 1.05 KVA 7.5A Single Phase
Variable autotransformer that accepts 120V AC input and outputs adjustable voltage from 0-140V AC. Manual rotary dial control allows stepped voltage adjustment for testing and operating equipment across different voltage requirements.
Specifications & What's Included
- Input Voltage: 120V AC
- Output Voltage: 0-140V AC (adjustable)
- Power Rating: 1.05 KVA at 7.5A
- Single phase, 50/60 Hz operation
- Manual rotary dial control with toggle ON/OFF switch
- Red pilot light indicator
- Binding post output terminals, standard 2-prong input cord
- Benchtop form factor, manufactured in Dayton, Ohio
Applications
Variacs are commonly used in laboratory and industrial settings to test equipment sensitivity to voltage fluctuations, condition power supplies during startup, and operate devices designed for different voltage standards. This unit was historically used in telecom and electronics test environments for controlled voltage supply during equipment diagnostics and maintenance procedures.
Condition: Used
This Staco 3PN500B Adjust-A-Volt variable autotransformer is in used condition and shows its age cosmetically. The green crinkle-finish cast housing has areas of paint loss, surface oxidation, and general wear consistent with bench use over many years. Surface rust is visible on the base mounting feet and in spots along the lower housing. The top dial and knob are intact and turn freely. The toggle power switch and red pilot indicator are present. The output binding post terminals and AC input line cord appear complete. The unit has not been powered up or tested at our facility but came out of a working lab environment. Please view our photo set and contact us if you have any questions.
This Staco 3PN500B Adjust-A-Volt variable autotransformer is in used condition and shows its age cosmetically. The green crinkle-finish cast housing has areas of paint loss, surface oxidation, and general wear consistent with bench use over many years. Surface rust is visible on the base mounting feet and in spots along the lower housing. The top dial and knob are intact and turn freely. The toggle power switch and red pilot indicator are present. The output binding post terminals and AC input line cord appear complete. The unit has not been powered up or tested at our facility but came out of a working lab environment. Please view our photo set and contact us if you have any questions.
Warranty Information
We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information
Brand: |
Staco |
Model: |
3PN500B |
MPN: |
3PN500B |
Type: |
Variable Autotransformer (Variac) |
SKU: |
47600 |
Input Voltage: |
120V AC |
Output Voltage: |
0-140V AC (adjustable) |
Power Rating: |
1.05 KVA |
Current Rating: |
7.5A |
Phase: |
Single Phase |
Frequency: |
50/60 Hz |
Form Factor: |
Benchtop |
Control Type: |
Manual rotary dial |
Power Switch: |
Toggle ON/OFF switch |
Indicator: |
Red pilot light |
Output Connector: |
Binding post terminals |
Input Connector: |
Standard 2-prong AC line cord |
Country/Region of Manufacture: |
United States (Dayton, Ohio) |
Condition: |
Used – Pulled from Working Environment |
Seller Notes: |
Unit only; no additional accessories included. |
Condition Notes: |
Used Staco 3PN500B Adjust-A-Volt variac showing cosmetic wear, paint loss, and surface rust on base. Dial, switch, binding posts, and cord present. Not powered or tested at our facility; pulled from a working lab environment. |