... Electric Air Heater, CSL 028, 150W,250W,400W Compact design Low noise Dynamic Compact Semiconductor Fan Heater, Industrial Electric Air Heater, CSL ... ³/h CSL 028: 45m³/h (230VAC), 54m³/h (120VAC) service life 40,000h at 40°C (104°F)Connection2-pole clamp ... for the use within an enclosure in accordance with UL508A Compact Semiconductor Fan Heater, Industrial Electric Air Heater, CSL 028, 150W ...