MD Series 1.65 in. (42mm) DC Axial Fans

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These compact axial fans use high-performance brushless DC motors. They are optimal for cooling equipment. Built-in alarm types are also available that detect and signal fan rotation abnormalities or stoppages. These fans meet UL, CSA, EN/IEC standards and CE Markings (EMC).

DC Input
Frame sizes from 1.65 in (42 mm)
Maximum airflow from 14.8 CFM (0.42 m3/min)
Alarm types available

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Unit of Measure

Items	MDS420-24 1.65 in. (40 mm) DC Axial Fan Web Price $33.00	MDA420-24L 1.65 in. (40 mm) DC Axial Fan with Alarm Web Price $33.00	MDV420-24S 1.65 in. (40 mm) DC Axial Fan Web Price $51.00
Frame Size	- 1.65 in40 mm
Thickness	- 0.79 in.20 mm
Type	- S Type (Standard)	- A Type (with Alarm)	- V Type (Variable Speed)
Power Supply	- 24 VDC
Current	- 0.04 A	- 0.04 A	- 0.13 A [100% PWM Duty] 0.02 A [20% PWM Duty]
Function	-	- Stall Alarm - Electronic	- Pulse Sensor
Connection Type	- Lead Wire
Fan Speed Type	- Standard Speed	-	-
Speed (r/min)	- 8000	- 8000	- 16000 [100% PWM Duty]
Max. Air Flow	- 7.4 CFM 0.21 m³/min	- 7.4 CFM 0.21 m³/min	- 14.8 CFM [100% PWM Duty] 2.8 CFM [20% PWM Duty] 0.42 m³/min [100% PWM Duty] 0.08 m³/min [20% PWM Duty]
Max. Static Pressure	- 0.319 inH₂O 79.5 Pa	- 0.319 inH₂O 79.5 Pa	- 1.275 inH₂O [100% PWM Duty] 0.049 inH₂O [20% PWM Duty] 318 Pa [100% PWM Duty] 12.3 Pa [20% PWM Duty]
Noise Level	- 28 db (A)	- 28 db (A)	- 47 dB (A) [100% PWM Duty] 13 dB (A) [20% PWM Duty]
Safety Standards	- TUV UL

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