Soft-start electronics to avoid high inrush currents. Slow pump start-up. Safe to run dry for up to 0.5 hours. Duty cycle 30min. Running time 400-450 operating hours. For pumping clean water up to max. 60°C, including drinking water. For hoses with 10 mm inner diameter. Current: max. 5A. Connection: (+) brown / (-) blue.