Staco Energy 3PN1010B Variable Autotransformer 0-140V AC Output, 10A, 1.4 kVA

Condition: Used – Fully Tested and Working

The Staco Energy 3PN1010B Variable Autotransformer is a robust and reliable Variac-style transformer designed to provide precise control over AC voltage output. With an input of 120V AC and an adjustable output range of 0-140V AC, it supports up to 10 Amps and delivers 1.4 kVA of power, making it ideal for laboratory testing, voltage regulation, and industrial applications.

This portable unit from the CORD Series comes fully assembled in a ventilated steel case and includes a line cord and plug, output receptacle, lighted power switch, and an output fuse for protection. The manual dial allows smooth voltage adjustments with clockwise rotation increasing output, marked from 0-100% for easy readings.

Features

• Adjustable Output Voltage: Delivers 0-140V AC with smooth manual control.
• High Current Capacity: Supports up to 10 Amps for various industrial and laboratory applications.
• Portable Design: Fully enclosed in a ventilated steel case with integrated handle for easy transport.
• Pre-Corded for Convenience: Includes input line cord with plug and NEMA-rated output receptacle—ready to use out of the box.
• Safety Features:
  • Output fuse for overload protection.
  • Lighted power switch for easy ON/OFF indication.
• Manual Operation: Dial control with clockwise rotation for increasing voltage, marked from 0% to 100%.
• High-Frequency Compatibility: Operates at 50/60/400 Hz, suitable for diverse applications.
• Field Modifiable: Compatible with optional wall or bench mounting kits (sold separately).

Specifications

• Manufacturer: Staco Energy
• Model Number: 3PN1010B
• Series: CORD Series
• Input Voltage: 120V AC, Single-Phase
• Output Voltage: 0-140V AC
• Power Output: 1.4 kVA
• Current Capacity: 10 Amps Max
• Frequency: 50/60/400 Hz
• Enclosure: Ventilated Steel Case
• Control: Manual Dial (CW Rotation for Voltage Increase)
• Output Protection: Integrated output fuse
• Switch: Lighted ON/OFF power switch
• Output Receptacle: NEMA-rated, fused
• Dimensions (WxDxH): 5.5″ x 5.96″ x 4.62″
• Weight: Not specified (approx. 15-20 lbs typical for this class)
• Shaft Rotation: Clockwise (CW)

Applications

The Staco 3PN1010B Variable Transformer is ideal for:

• Laboratory Testing: Precise voltage control for electronics testing and development.
• Industrial Voltage Regulation: Smooth AC voltage control for motors, heaters, and more.
• Audio Equipment Testing: Voltage variation for amplifiers and sound systems.
• Lighting Dimming: High-power light dimming in studios and film sets.
• Repair & Maintenance: Regulating voltage for repairing sensitive electronics.
• Education: Demonstrating AC voltage control in labs and classrooms.

Comparable Products

If the Staco 3PN1010B is unavailable, consider these alternatives:

• Variac TDGC2-2D Variable Transformer (0-130V AC, 20A, 2 kVA)
• Superior Electric Powerstat 116B Variable Transformer (0-140V, 10A)
• Kepco ATE 25-10M Variable Transformer (0-140V AC, 10A)
• Staco 3PN1010C (upgraded model with voltmeter/ammeter)

Related

• Variable autotransformer 0-140V AC
• 10A Variac-style voltage controller
• Staco Energy CORD Series variac
• Portable lab-grade AC transformer
• Industrial voltage regulator 1.4 kVA

Common Requests:

1. How to use Staco 3PN1010B variable transformer for lab testing
2. Best Variac for 10A high-current applications
3. Staco Energy 3PN1010B vs Superior Electric Powerstat comparison
4. Troubleshooting voltage fluctuations in Variac transformers
5. Mounting options for Staco CORD Series autotransformers

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