EC Backward Curved Centrifugal Fan

Model no.: EC Backward Curvec centrifugal fans with 115V / 230v / 380v Series

Impeller SIZE: 175mm - 400mm (diameter )

Features:

Motor: BLEC Motor

Bearing Type: Ball Bearing

Impeller Material: Propylene with Glass-Fiber / Galvanized Sheet steel / Sheet aluminium.

Operating Temp: -25°C~+60°C

Type of protection: IP54, IP44

Certification: CE, UL, RoHS, CCC, ETL, etc

Model	Bearing Type	Rated Voltage	Rated Voltage	Rated Current	Rated Power	Rated Speed	Air Flow	Air Pressure	Noise
	(B/S)	(V)	(V)	(A)	(W)	(RPM)	m³/h	Pa	dBA)
LWBE3G133mm	Ball	230	200-277	0.35	45	4480	270	400	73
LWBE3G175mm	Ball	230	200-277	0.6	78	4070	660	510	73
LWBE3G190mm	Ball	230	200-277	0.56-1.18	73-149	3320-4050	722-750	510-690	70-78
LWBE3G220mm	Ball	230	200-277	0.56-1.18	65-157	2500-3510	920-963	460-690	71-75
LWBE3G225mm	Ball	230	200-277	0.6-1.14	80-150	2500-3010	1100-1226	430-660	69-79
LWBE3G250mm	Ball	230	200-277	0.4-3.2	60-485	2150-3750	975-2124	320-1150	65-86
LWBE3G280mm 230V	Ball	230	200-277	1-4.3	135-690	2325-3000	1550-3050	580-800	75-82
LWBE3G280mm 380V	Ball	3~380	/	1.1	780	2850	2900	900	82
LWBE3G310mm 230V	Ball	230	200-277	1.07-3	134-445	1770-2600	2000-2750	320-750	65-79
LWBE3G310mm 380V	Ball	3~380	/	1.64	980	2600	4750	850	74
LWBE3G355mm 230V	Ball	230	200-277	1.4-2	240-330	1750-1970	2800-3100	580-700	73-77
LWBE3G355mm 380V	Ball	3~380	/	1.63	990	2100	5300	650	79
LWBE3G400mm 230V	Ball	230	200-277	1.5	330	1430	3600	480	69
LWBE3G400mm 380V	Ball	380	/	1.22	725	1550	5800	550	73
LWBE3G450mm	Ball	380	/	1.67	1000	1450	7400	580	73
LWBE3G470mm	Ball	230	200-277	0.85	185	1100	3800	340	69
LWBE3G500mm	Ball	380	/	1.46	870	1100	7800	450	71

EC-fans are up to 30% more efficient than AC-fans

EC-fans are up to 30% more efficient than AC-fans and the most efficient while partly loaded

EC motor efficiency ranges between 80% and 90%. To put this into perspective, a three phase induction motors maximum efficiency is at 75%, and PSC (permanent split capacitor) motors have a maximum efficiency of between 60% and 70%. By using an EC motor the payback is instant and can provide cost effective savings over its lifetime. You can see the example of efficiency and energy saving features demonstrated here.

EC-fans are easily controllable (0-10 V)

In terms of speed control and features, because the motor's operation is controlled by software, EC motors allow customers to optimize and integrate the motor, fan and controller with the application, and to include features like data communications, constant volume control, variable speed, etc.

Applications

• EC fan array

• Electronic cabinet cooling

• Clean room modules

• Heat exchangers

• Air filtration systems

• Military HRAC

• Pharmaceutical/biological control systems

• Computer room air conditioning (CRAC) systems

• Air-handling units

http://www.longwellfans.com/