Thermal Management

Reliable high-performance cooling fans

Counter Rotating Fans

DC Axial Counter Rotating Fans

DC Axial Counter-Rotating Fans

High static pressure and straighter axial airflow

Dual ball-bearing plastic or metal frame fans from 38 mm square by 48 mm deep up to 172mm diameter by 102mm deep designed for high impedance cooling applications.

Counter-rotating fans provide superior performance when compared to using two fans back to back. The counter-clockwise rotation of the second fan reduces swirl from the inlet fan and contributes to more focussed straight outflow and higher static pressure. Making the fan suitable for higher impedance systems and for thermal management where air is blown directly at a target.
In addition to the performance improvements the geometry of the a CR fans means it takes up less width (or less height ) than using two standard fans side by side- this can be a significant advantage in compact 1U, 2U racks where there may be free spare depth available in the enclosure but no spare width or height.

Frame sized include : 38mm, 40mm, 60mm, 80mm, 92mm ,120mm and 172mm diameter
Plastic or low vibration metal bodied fans
Fan voltage: 12V , 24V or 48V DC

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Counter Rotating Fans

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Model no.	Product name	Frame size[mm]	Frame thickness[mm]	Rated voltage[V]	Rated current[A]	Rated input[W]	Rated speed[min-1]	Max. airflow[m3/min]	Max. airflow[CFM]	Max. static pressure[Pa]	Max. static pressure[inchH2O]	SPL[dB(A)]	Expected life[h]	Sensor type	PWM control function	Ribbed
109-033UL	AC Fan	80	42	115	0.04	3.5	1500	0.43	15.2	8.8	0.035	24	25000/60℃ （56000/40℃）	No sensor	No	No
109-040UL	AC Fan	80	42	100	0.11	9	3100	1	35.3	35.3	0.142	44	25000/60℃ （56000/40℃）	No sensor	No	No
109-041UL	AC Fan	80	42	200	0.07	10	2650	0.85	30	24.5	0.098	40	25000/60℃ （56000/40℃）	No sensor	No	No
109-043UL	AC Fan	80	42	115	0.1	9	3100	1	35.3	35.3	0.142	44	25000/60℃ （56000/40℃）	No sensor	No	No
109-044UL	AC Fan	80	42	230	0.06	10	2650	0.85	30	24.5	0.098	40	25000/60℃ （56000/40℃）	No sensor	No	No
109-047UL	AC Fan	80	42	100	0.05	3.5	1500	0.43	15.2	8.8	0.035	24	25000/60℃ （56000/40℃）	No sensor	No	No
109-130	AC Fan	60	38	100	0.07	5	3150	0.4	14.1	23.3	0.094	30	25000/60℃ （56000/40℃）	No sensor	No	No
109-133	AC Fan	60	38	115	0.06	5	3150	0.4	14.1	23.3	0.094	30	25000/60℃ （56000/40℃）	No sensor	No	No
109-150	AC Fan	80	38	100	0.11	8	3150	1.05	37.1	44.1	0.177	39	25000/60℃ （56000/40℃）	No sensor	No	No
109-151	AC Fan	80	38	200	0.07	9	2700	0.9	31.8	31.4	0.126	35	25000/60℃ （56000/40℃）	No sensor	No	No
109-153	AC Fan	80	38	115	0.1	8	3150	1.05	37.1	44.1	0.177	39	25000/60℃ （56000/40℃）	No sensor	No	No
109-154	AC Fan	80	38	230	0.06	9	2700	0.9	31.8	31.4	0.126	35	25000/60℃ （56000/40℃）	No sensor	No	No
109-180	AC Fan	60	28	100	0.05	4	2700	0.33	11.7	18.6	0.075	26	25000/60℃ （56000/40℃）	No sensor	No	No
109-183	AC Fan	60	28	115	0.05	4	2700	0.33	11.7	18.6	0.075	26	25000/60℃ （56000/40℃）	No sensor	No	No
109-210	AC Fan	80	20	100	0.06	5	3000	0.53	18.7	31.4	0.126	31	25000/60℃ （56000/40℃）	No sensor	No	No
109-213	AC Fan	80	20	115	0.05	5	3000	0.53	18.7	31.4	0.126	31	25000/60℃ （56000/40℃）	No sensor	No	No
109-311	AC Fan	172	51	100	0.25	25	3500	6.4	226.1	196	0.787	51	25000/60℃ （56000/40℃）	No sensor	No	No
109-312	AC Fan	172	51	200	0.16	27	2900	5.3	187.3	147	0.59	47	25000/60℃ （56000/40℃）	No sensor	No	No
109-313	AC Fan	172	51	230	0.14	27	2900	5.3	187.3	147	0.59	47	25000/60℃ （56000/40℃）	No sensor	No	No
109-314	AC Fan	172	51	115	0.22	25	3500	6.4	226.1	196	0.787	51	25000/60℃ （56000/40℃）	No sensor	No	No

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