... Compact design Low noise Dynamic Compact Semiconductor Fan Heater, Industrial Electric Air Heater, CSL 028, 150W,250W,400WCompact designLow noiseDynamic ... an evenly distributed interior air temperature in enclosures with electric/electronic components. The heater is connected using the internal ... service life 40,000h at 40°C (104°F)Connection2-pole clamp max. 2.5mm² (CSL 028 with strain relief), ...