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A Variable Autotransformer, also known as a Variac or Slidac, is an electrical device used to smoothly adjust AC voltage output from 0 volts up to the input voltage or higher. Unlike traditional transformers, it uses a single winding and a sliding contact (carbon brush) to provide continuous voltage variation without steps or interruptions.
The YU HSENG Variable Autotransformer features a robust design and precision assembly that delivers consistent output voltage with minimal waveform distortion, even under high-voltage conditions. With a compact and user-friendly design, this model offers a wide range of applications across industries. Its versatile model lineup meets diverse industrial requirements, and each unit undergoes rigorous quality control testing to ensure performance and reliability.
Brand: YU HSENG
Model: YH-201 (S)
Phase & Voltage: Single Phase (1Φ), 220 Vac / 240 Vac
Input Frequency: 50 / 60 Hz
Output Voltage Ranges:
0~220V (1A Max)
0~240V (0.9A Max)
0~260V (0.8A Max)
0~280V (0.7A Max)
Max Output Power: 0.22 kVA
Mounting Style: Round Embedded Panel Mount
Dimensions (mm): 90 × 117
Net Weight: 2.5 kg
Country of Origin: Taiwan
Ideal for use in:
Torque motors
Automatic voltage regulators (AVRs)
Testing and measurement setups
Educational lab equipment
Industrial voltage regulation
Motor control and testing systems
Devices requiring variable AC voltage input
