Hoefer 300 Volt Power Supply PS300B

Versatile electrophoresis power supply designed for most electrophoresis techniques, including PAGE, multiple minigels, horizontal agarose gels, semi-dry transfer and minigel tank transfers. Operates in constant voltage or constant current mode with automatic crossover, provides 10 to 300 V and 4 to 500 mA output (maximum 90 W), and supports continuous runs or a programmable timer up to 999 minutes. The unit features a large, easy-to-read LED display, simple membrane keypad controls, four parallel 4 mm output jacks, and universal AC input for laboratory use.

Key Features:

• Voltage: 10 to 300 V (1 V steps)
• Current: 4 to 500 mA (1 mA steps)
• Maximum output power: 90 W
• Timer: 0 to 999 minutes (continuous or timed runs)
• Output jacks: four parallel, 4 mm (sum of currents displayed; total ≤ 500 mA)
• Universal input: 100–240 VAC, 50/60 Hz; operating temperature 4–40°C; humidity ≤80%
• Unit dimensions: 12.5 x 33.5 x 28 cm; weight: 2.4 kg

Advantages:

• Small footprint with a large handle and simple operation enables easy setup and handling in the laboratory
• Selectable constant voltage or constant current modes with automatic crossover allow stable control of electrophoresis conditions
• Safety and reliability features including automatic recovery after power failure, open-circuit detection, and short-circuit protection
• Four parallel 4 mm outputs permit multiple simultaneous connections while a clear LED display and keypad simplify parameter setting