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U71HL-024KM-4
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Catalog excerpts

U71HL-024KM-4 - 1

Specification Radial Blower U71HL-024KM-4 General Information Item Product type Radial blower with integrated electronic motor driver U71HL-024KM-4 U71HL-024KM-41 with inlet port (option) U71HL-024KM-42 with outlet port (option) U71HL-024KM-43 with inlet and outlet port (option) Standard product Description This versatile and powerful blower has been designed for cost sensitive applications. It provides an integrated brushless driver with set-speed input and tacho output and is optionally available with inlet and outlet nozzles. Features • Static pressure: 69 hPa, freeflow: 470 l/min • 24 VDC brushless DC-motor • Speed control and tacho frequency signal • Aluminum heat sink • Options for in- and outlet ports General Conditions Unless otherwise stated all data are measured at nominal voltage and are valid at 20 °C ambient temperature and 1.2 kg/m3 standard air density. Values listed are nominal and can vary depending on the installation conditions and due to component tolerances. Test setup according to ISO 5801 with standardized inlet and outlet chambers. Tolerances based on specified speed data according to ISO 13348, grade 4: pressure +/-10 %, power +16 %. Tolerances based on constant voltage: speed +/-10 %, pressure +/-21 %, power +33 %. For continuous blower operation please refer to specified maximum ratings. Performance data outside normal operating range plotted for information

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U71HL-024KM-4 - 2

Pressure Operation at Outlet Vacuum Operation at Inlet Shut-Off in Pressure Operation (Zero Flow Rate) Static pressure Power consumption Static pressure Power consumption Flow rate Power consumption Shut-Off in Vacuum Operation (Zero Flow Rate) Free-Air (Zero Static Pressure)

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U71HL-024KM-4 - 3

Technical Data Electrical Nominal supply voltage Supply voltage range Minimum power supply current(1) Maximum start-up time Maximum ripple voltage Minimum flow rate Maximum speed Maximum acceleration Maximum power consumption Maximum housing surface temperature Ambient temperature (operating) Ambient temperature (storage) Relative humidity (non-condensing) Maximum Ratings for Continuous Operation Ingress protection (EN60529) Maximum oxygen concentration Motor Type Brushless direct current motor Winding insulation class Acoustics Sound pressure level Leak Tightness Maximum leak flow rate...

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U71HL-024KM-4 - 4

Inlet Outlet Mounting option Orientations Direction of rotation Mounting position Counter-clockwise (view on inlet) Any direction Materials Components Blower housing Polycarbonate (PC), transparent Flammability: 850 °C Stainless steel Motor housing Crimp terminal Lead wire High flex silicon Flammability: UL 3239

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U71HL-024KM-4 - 5

Identification Label Design Identification number: • Year, calendar week (YYWW) • Fabrication number (6 digits) • Serial number (3 digits) Part number Nominal voltage Tachometer output Electronic Functions Integrated Electronic Motor Driver Type Sensorless brushless direct current motor driver • Integrated speed control (voltage / resistor) • Tachometer frequency signal • Locked rotor protection • Over voltage protection • Polarity protection Speed Control Input Input Voltage The blower speed can be controlled either by input voltage or input resistor value. See „Set Speed Input“ tables for...

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U71HL-024KM-4 - 6

Electronic Functions Set Speed Input Voltage [VDC] Operation Mode Not defined, blower might run or stop Minimum start-up voltage Blower speed depending on input voltage Set Speed Input Resistor [kΩ] Operation Mode Not defined, blower might run or stop Minimum start-up resistance Blower speed depending on resistor value Options for Inlet and Outlet Ports* Inlet Aluminum port Article with options Inlet port Outlet port Radial Blower U71HL-024KM-4 Radial Blower U71HL-024KM-41 Radial Blower U71HL-024KM-42 Radial Blower U71HL-024KM-43 Outlet Aluminum port * The drawings show inlet and outlet...

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