30V / 20A Heavy-Duty Linear DC Regulated Power Supply

About.

The Vartech 3020 is a heavy-duty single-output linear DC power supply rated 0–30 V, 0–20 A. It adds a preset voltage and current facility (not on the 3010), allowing users to pre-set output values before enabling the output. CV/CC automatic switching, Output On/Off, and series/parallel connection capability make it suitable for high-current bench and industrial applications.

• 0–30 V, 0–20 A - single output, fully variable
• Linear (transformer-based) - heavy duty
• Preset V & I control facility
• Automatic CV / CC mode switching
• Output On/Off switch
• Series / parallel connection capability
• Constant current and overload protection

Specifications.

Output Voltage

0–30 V (fully variable)

Output Current

0–20 A (fully variable)

Type

Linear (transformer-based), Single output, Heavy duty

CV Line Regulation

≤ 0.01 % + 10 mV

CV Load Regulation

≤ 0.02 % + 10 mV

CC Line Regulation

≤ 0.2 % + 3 mA

CC Load Regulation

≤ 0.2 % + 3 mA (I ≤ 3 A) | ≤ 0.2 % + 5 mA (I > 3 A) | ≤ 0.2 % + 15 mA (I > 10 A)

Ripple & Noise (CV)

≤ 3 mV rms

Ripple & Noise (CC)

≤ 3 mA rms (I ≤ 3 A) | ≤ 10 mA rms (I > 3 A)

Preset V & I

Yes

Display

2 × LED - 3 digits each (V and A)

Indication Accuracy

Voltage: ±1 % + 2 digits | Current: ±2 % + 2 digits

Protection

Constant current and overload protection

Power Supply

230 V ±10 %, 50 Hz ±2 Hz