Technical Specifications

Key Features

Applications

• 48 VDC telecommunications equipment cooling
• Server and networking equipment ventilation
• Industrial control enclosure forced-air cooling
• Power conversion and power supply thermal management
• Electronic equipment with fan speed-monitoring inputs
• Industrial computer chassis airflow
• Rack-mounted electronic equipment ventilation
• Maintenance of compatible EFC1248DF-F00 cooling assemblies

Purchase Information

We support online purchase of the Delta Electronics EFC1248DF-F00 DC Axial Fan. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.

Frequently Asked Questions

What is Delta Electronics EFC1248DF-F00?
EFC1248DF-F00 is a Delta Electronics DC brushless axial cooling fan. The manufacturer certification identifies the EFC1248DF family at 48 VDC and 330 mA and specifically permits the F00 suffix.

What is the rated voltage of EFC1248DF-F00?
The nominal rated voltage is 48 VDC, confirmed by Delta's CSA certification record and listings for the complete -F00 model.

What is the certified listed current?
Delta's CSA schedule records 330 mA, equivalent to 0.33 A, for EFC1248DF. The same current appears on the photographed EFC1248DF-F00 label and in complete-model supplier specifications.

What is the electrical power?
Multiplying 48 VDC by 0.33 A gives 15.84 W. This is a calculated reference based on listed electrical ratings and should not be confused with a separately tested maximum input-power value.

What are the dimensions of EFC1248DF-F00?
ElecOK and several model-specific distributors list 120 x 120 x 32 mm. Other sellers describe the same family as 120 x 120 x 38 mm. A matching Delta dimension drawing was not established to resolve the difference, so verify actual depth and mounting features.

What does the F00 suffix mean?
Delta defines F00 as a frequency-generator output. It produces a rotation-related signal that can be interpreted by a compatible monitoring circuit.

Does F00 mean the fan has PWM speed control?
No. Delta's F00 designation establishes a frequency-generator function, not PWM control by itself. Although some sellers advertise PWM for four-wire EFC1248DF-F00 assemblies, the specific control input and electrical signal requirements need confirmation.

How many wires does EFC1248DF-F00 have?
Complete-model supplier documentation and product images show four wires and a four-pin connector. Do not assume wire colors, pin order or connector keying without checking the exact assembly.

What rotational speed is specified?
Some supplier descriptions report 4000 RPM. A corresponding Delta approval specification confirming this speed for the complete -F00 configuration was not established, so the figure remains supplier-reported.

What maximum airflow and static pressure are specified?
Some sellers advertise approximately 200 CFM, but a matching manufacturer performance curve was not established. Maximum static pressure was also not independently verified. Request a variant-specific airflow-pressure specification if these values are needed for engineering selection.

What is the difference between EFC1248DF-F00 and EFC1248DF-R00?
Delta's certification schedule lists both suffixes. F00 is a frequency-generator speed-feedback function, while R00 is a rotation-detector function. Their signal behavior and wiring must be matched to the equipment control circuit.

What should be checked before ordering Delta EFC1248DF-F00?
Verify the complete EFC1248DF-F00 marking, 48 VDC power supply, 0.33 A listed current, actual 120 mm frame depth, mounting-hole geometry, four-pin connector, wire functions, frequency-generator input requirements and system airflow specifications.