Radial Blower U51DL-024KK-4
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Specification Radial Blower U51DL-024KK-4 General Information Item Product type Radial blower with integrated electronic motor driver U51DL-024KK-4 U51DL-024KK-42 with outlet nozzle (option) U51DL-024KK-43 with inlet and outlet nozzle (option) Standard product Description This versatile and compact 24 VDC blower is the ideal choice for mobile medical respiration devices. It provides an integrated brushless driver with set-speed input and tacho output and is optionally availabe with a inlet nozzle. Features • Static pressure: 54 hPa, freeflow: 500 l/min • 24 VDC brushless DC-motor • Speed control and tacho frequency signal • Small dimensions through slim design • 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

Performance Pressure vs. Flow Characteristics Flow rate [cfm] 3.5 Static pressure [in H2O] Pressure [in H2O] Static pressure [hPa] Pressure [hPa] Flow rate [l/min] Speed and Power vs. Flow Characteristics Flow rate [cfm] 3.5 Speed [krpm] Flow rate [l/min] 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)

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...

Mounting option Orientations Direction of rotation Mounting position Counter-clockwise (view on inlet) Any direction Materials Components Blower housing basic article U51DL-024KK-4 Polycarbonate (PC), transparent Flammability: 850 °C / 1 mm (IEC 60695-2-12) Biocompatibility: USP Class VI / ISO 10993 Blower housing option articles U51DL-024KK-42 and U51DL-024KK-43 Acrylnitril-Butadien-Styrol (ABS) black Fulfills UL 94 HB, but not UL listed Motor housing Aluminum anodised, natural colour Crimp terminal Lead wire

Identification Label Design Identification number: • Year, calendar week (YYWW) • Fabrication number (6 digits) • Serial number (3 digits) Part number Voltage range 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 • Thermal protection Speed Control Input Input Voltage The blower speed can be controlled either by input voltage or input resistor value. See „Set Speed Input“ table for further Input Resistor...

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 Nozzles Micronel Radial Blower U51DL-024KK-42 Micronel Radial Blower U51DL-024KK-43 Article with options Inlet nozzle Outlet nozzle Radial Blower U51DL-024KK-4 Radial Blower U51DL-024KK-42 Radial Blower U51DL-024KK-43

Options for Inlet and Outlet Nozzles Micronel Radial Blower U51DL-024KK-42 Micronel Radial Blower U51DL-024KK-43 Please see separate accessories list or contact Micronel Sales for a full list of options and accessories. All data are subject to change without advanced notice. © 2024 by Micronel AG. All rights reserved. Micronel AG Zürcherstrasse 51 CH - 8317 Tagelswangen Handle in power-off conditions only! Read operating manual!