MB Series S Type 4.72 in. (120 mm) AC Centrifugal Fans / Blowers

Centrifugal fans / centrifugal blowers move air by means of the centrifugal force generated by rotating a cylindrical runner on which blades have been arranged. Centrifugal blowers have a small outlet, which concentrates air in a single direction, and are therefore suitable for local cooling. They also create large static pressure, making them optimal for cooling equipment through which air cannot flow easily and for airflow through ducts.

Impeller Diameter 4.72 in. (120 mm)
Max. Air Flow 184 CFM (5.2 m³/min)

Unit of Measure

Items	MBS12-UA 4.72 in. (120 mm) MB Series Centrifugal Fan / Blower (Single-Phase 110/115 VAC) Web Price $248.00	MBS12-EC 4.72 in. (120 mm) MB Series Centrifugal Fan / Blower (Single-Phase 220/230 VAC) Web Price $259.00	MBS12-ES 4.72 in. (120 mm) MB Series Centrifugal Fan / Blower (Three-Phase 220/230 VAC) Web Price $259.00
Impeller Diameter	- 4.72 in.
Power Supply	- Single-Phase 110/115 VAC	- Single-Phase 220/230 VAC	- Three-Phase 220/230 VAC
Current (A)	- 1.0 [115 VAC, 60 Hz] 1.1 [110 VAC, 60 Hz]	- 0.37 [230 VAC, 50 Hz] 0.39 [220 VAC, 50 Hz] 0.53 [230 VAC, 60 Hz] 0.56 [220 VAC, 60 Hz]	- 0.31 [220 VAC, 50 Hz] 0.36 [220/230 VAC 60 Hz]
Speed (r/min)	- 3400 [110/115 VAC, 60 Hz]	- 2900 [220/230 VAC, 50 Hz] 3400 [220/230 VAC, 60 Hz]	- 2900 [220 VAC, 50 Hz] 3400 [220/230 VAC, 60 Hz]
Max. Air Flow	- 184 CFM [110/115 VAC, 60 Hz]	- 155 CFM [220/230 VAC, 50 Hz] 184 CFM [220/230 VAC, 60 Hz]	- 155 CFM [220 VAC, 50 Hz] 184 CFM [220/230 VAC, 60 Hz]
Max. Static Pressure	- 1.81 inH₂O [110/115 VAC, 60 Hz]	- 1.27 inH₂O [220/230 VAC, 50 Hz] 1.81 inH₂O [220/230 VAC, 60 Hz]	- 1.27 inH₂O [220 VAC, 50 Hz] 1.81 inH₂O [220/230 VAC, 60 Hz]
Noise Level	- 72 dB (A) [110/115 VAC, 60 Hz]	- 67 dB (A) [220/230 VAC, 50 Hz] 72 dB (A) [220/230 VAC, 60 Hz]	- 67 dB (A) [220 VAC, 50 Hz] 72 dB (A) [220/230 VAC, 60 Hz]
Safety Standards	- UL CSA CE