Heavy duty cooling fan 140x140x25 mm 12V 4-pin PWM max. 3000 RPM max. 41.3 dB (A) >150 000 h MTTFAward-winning 140x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior cooling efficiency12V 3000rpm model ( 41.3 dB) with 4-pin PWM connector for automatic speed control via 4-pin PWM fan headers broad 800-3000rpm speed rangeHigh-speed industrialPPC version for industrial heavy-duty applications that require extreme cooling performance and advanced ingress protectionRuggedised fibre-glass reinforced polyamide construction and IP52 certified water and dust protection