CMS-4020-24SP

Speakers Overview

The CMS-4020-24SP is a general-purpose DC axial fan manufactured by Same Sky. It features a 40 mm square frame with a 20.7 mm depth. The unit operates at 24 VDC and delivers an airflow of 4.38 CFM (0.12 m³/min) at a rotational speed of 3500 RPM. Acoustic performance is rated at 11.4 dBA. Electrical power consumption is 960 mW. The housing utilizes polybutylene terephthalate (PBT), and the bearing type is sleeve.

Speakers Feature Summary

• Incorporates auto restart functionality for operational reliability after power interruption.
• Includes polarity protection to prevent damage from incorrect wiring connections.
• Features a tachometer signal output for real-time speed monitoring and feedback.

Speakers Applications

• Electronic equipment thermal management
• Industrial control system cooling
• Communication infrastructure ventilation

Speakers Procurement Notes

Verify the specific suffix codes against the manufacturer datasheet to confirm electrical and mechanical configurations. Ensure the required voltage rating matches the system design. Confirm bearing type and connector style requirements prior to ordering. Cross-reference the RoHS compliance status with current regulatory standards. Validate dimensional tolerances against enclosure mounting specifications.

Speakers Selection Notes

Evaluate the airflow requirements against the 4.38 CFM specification to ensure adequate cooling capacity. Consider the 11.4 dBA noise level for acoustic-sensitive environments. Assess the 24 VDC operating voltage compatibility with available power supplies. Review the sleeve bearing lifespan expectations relative to the application duty cycle. Verify the PBT housing material suitability for the environmental conditions.

Speakers Part Context

This component belongs to the Same Sky DC axial fan product line, designed for compact cooling solutions. The 40 mm form factor is standard for small electronic enclosures. The series integrates protective circuitry directly into the motor assembly. It serves as a direct replacement for legacy CUI Devices fans in existing designs.

Speakers Replacement Considerations

Consult official substitution lists for compatible variants. Verify pinout and voltage compatibility when selecting alternatives. Ensure dimensional fit within the original mounting space.