3000 B series DC power supplies are very stable regulated DC power supplies having complete Output protection, continuously variable output voltage and current levels with automatic constant voltage and current. these have 2 LED, displays (3 digits) ; 1 each for Voltage and Current. 

Technical Parameters:

• Input voltage : 220 V ± 10%, 50Hz ± 2Hz
• Output Voltage : 30 V
• Output Current : 5A
• Line regulation : ≤ 0.01% + 3mV
• Load regulation : ≤ 0.01% + 3mV
• Ripple and noise : ≤ 1 mV r m s
• Protection : Constant current and Short-circuit protection
• Indication accuracy : ≤ 0.5% + 1 digit.
• Operating Environment : 0 ~ + 40 ºC, Relative humidity  : < 90%
• Dimensions : 120 X 150 X 270 mm
• Weight : Appx. 5 kg
• Accessories : Power cord & Instruction manual