Leo AC300B4 / 3KW 400V Centrifugal Pump And Motor

The LEO AC300B4 is a robust centrifugal pump engineered for reliable water transfer and pressure boosting across residential and commercial applications. This versatile pump excels in urban water supply systems, high-rise building pressure boosting, fire fighting installations, garden irrigation, long-distance water transfer, and HVAC circulation-making it an ideal choice for both industrial facilities and municipal infrastructure projects requiring consistent performance with clean water and similar liquids.

Built with a cast iron pump body and support featuring specialized anti-rust treatment, the AC300B4 combines durability with precision engineering using an AISI 304 stainless steel shaft that resists corrosion in demanding environments. Its copper-wound motor delivers low-noise operation with extended bearing life, while the IPX4 enclosure rating and built-in thermal protection on single-phase models ensure safe, dependable service in challenging conditions-perfectly suited for continuous circulation, cold and hot water applications, and supporting equipment in industrial heating and cooling systems.

Application

• Can be used to transfer clean water or other liquids similar to water in physical and chemical properties
• Suitable for industrial use and urban water supply, pressure boosting for high buildings and fire fighting, garden irrigation, long-distance water transfer, heating ventilation and air conditioning, circulation and pressure boosting for cold and hot water, and supporting equipment etc.

Pump

• Cast iron pump body and support under special anti-rust treatment
• AISI 304 shaft
• Max. liquid temperture: +60 degC
• Max.suction: + 8m

Motor

• Low noise&Long life bearing
• Motor with copper winding
• Built-in thermal protector for single phase motor (<=1.5kW)
• Insulation class: F
• Enclosures class: IPX4
• Max. ambient temperture: +50 degC
• IE 2 motor (Three phase, power >= 0.75kW)

Identification Codes

• A - LEO Product Style
• C - Centrifugal Pump
• m - Single Phase Motor (Omitted for three-phase motor)
• 220 - Power (x10W)
• B - Features
• 3 - Inlet Diameter (")

Performance table

Source: LEO ACm/AC B3-B4 centrifugal pump technical data, 50 Hz.

Complete Specifications, Sizing and Price Guide Click Here.