Speed Characteristics Example

5000

10000

15000

20000

25000

30000

35000

40000

0

0.2

0.4

0.6

0.8

1500

10

20

30

0

0

10

1.0

1.2

1000

500

2000

2500

40

10

20

30

0

40

8

6

4

2

0

0.2

0.4

0.6

0.8

1500

0

10

1.0

1.2

1000

500

2000

2500

8

6

4

2

・ PWM duty cycle

・ Operating voltage range

Airflow

Airflow

(CFM)

(m

(Pa)

12 VDC

PWM duty cycle 100%

60%

20%

PWM duty cycle

100%

12 V/12.6 V

10.8 V

(Pa)

(CFM)

(m

PWM duty cycle

Voltage: 12 VDC

PWM frequency: 25 kHz

(min

Inlet

Outlet

(%)

0

100

Counter Rotating Fan

9CRJ type

The models listed below have pulse sensors with PWM control function.

Model no.

Rated voltage

[V]

Operating

voltage range

[V]

PWM

duty cycle*

[%]

Rated current

[A]

Rated input

[W]

Rated speed

Inlet

Outlet

Max. airflow

Max. static pressure

SPL

[dB(A)]

Operating

temperature

[°C]

Expected life

[h]

9CRJ0412P5J001

12

10.8 to 12.6

100

3.1

37.2

36200

32000

1.06

37.4 2400

9.64

72

-20 to +70 30000/60°C

(53000/40°C)

20

0.1

1.2

4500

4000

0.11

3.9

40

0.16

28

* PWM input frequency is 25 kHz; models without specifications at 0% PWM duty cycle have zero fan speed at 0%.

Models with the following sensor specifications are also available as options:

□ Material

Frame: Plastic (Flammability: UL 94V-0), Impeller: Plastic (Flammability: UL 94V-0)

□ Expected life

Refer to specifications

(L10 life: 90% survival rate for continuous operation in free air at 60˚C, rated voltage)

Expected life at 40°C is for reference only.

□ Motor protection function

Locked rotor burnout protection, Reverse polarity protection

□ Dielectric strength

50/60 Hz, 500 VAC, for 1 minute (between lead wire conductors and frame)

□ Insulation resistance

10 MΩ or more with a 500 VDC megger (between lead wire conductors and frame)

□ Sound pressure level (SPL)

At 1 m away from the air inlet

□ Operating temperature

Refer to specifications (Non-condensing)

□ Storage temperature

-30 to +70°C (Non-condensing)

□ Lead wire

Inlet ＋ Red − Black Sensor Yellow Control Brown

Outlet ＋ Orange − Gray Sensor Purple Control White

□ Mass

110 g

High Static Pressure and High Airflow

This fan delivers a maximum static pressure of 2400 Pa and a maximum airflow

Compared with our current model,* the maximum static pressure has increased

by 1.4 times and the maximum airflow has increased by 1.1 times.

This fan can efficiently cool high-density equipment that is hard to ventilate,

contributing to system downsizing.

Energy Saving

Power consumption has been reduced by approximately 20% compared with

the current model.*

The PWM control function enables the control of fan speed, contributing to

energy saving.

* San Ace 40 9CRH type 40 × 40 × 56 mm Counter Rotating Fan (model: 9CRH0412P5J001).