CUI DEVICES | SERIES: CFM-40CF | DESCRIPTION: DC AXIAL FAN

date 08/12/2022 | page 5 of 7

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MECHANICAL

parameter

conditions/description

min

typ

max

units

motor

4 pole DC brushless

bearing system

omniCOOL™

direction of rotation

counter-clockwise viewed from front of fan blade

dimensions

40 x 40 x 20

mm

material

PBT (UL94V-0)

weight

CFM-4020CF-055-212

CFM-4020CF-075-306

CFM-4020CF-095-342

CFM-4020CF-255-212

CFM-4020CF-275-306

CFM-4020CF-295-342

all other models

21.7

24.9

26.9

23.2

33.0

24.6

25.5

g

g

g

g

g

g

g

MECHANICAL DRAWING

units: mm

2 wire versions (+Vin & -Vin): UL 1007, 26 AWG

3 wire versions (+Vin, -Vin, & tach): UL 1007, 26 AWG

4 wire versions (+Vin, -Vin, tach, & PWM): UL 1007, 28 AWG

WIRE CONNECTIONS

Wire Color

Function

Red

+Vin

Black

-Vin

Yellow10

Tach Signal

Blue10

PWM

Notes: 10. Wires only present on versions with output signals.

MOUNTING SCREW (Pan Head)

Screw Type

Size

Standard

Torque

Machine Screw

M3

JIS B1111-1974

7.5 kgf-cm

Self-tapping Screw

M4

JIS B1122 Type 2

7.5 kgf-cm

Additional Resources: Product Page | 3D Model