ABB PHARPSFAN03000 MPS III Cooling Fan Assembly

The ABB PHARPSFAN03000, also cataloged as the PHARPSFAN03000 Cooling Fan Assembly, operates as a dedicated hardware component for system monitoring and forced-air cooling within the MPS III platform. The assembly uses a 24 VDC supply, integrated thermal sensing, and variable-speed fan control.

Hardware Specifications

Thermal Sensing and Variable-Speed Cooling

The PHARPSFAN03000 incorporates a thermal sensor for temperature-dependent fan activation. When the monitored system reaches the specified temperature threshold, the fan can initiate operation automatically. The variable-speed motor adjusts fan speed in response to system temperature, providing temperature-dependent airflow control rather than fixed-speed operation.

The supplied data specifies a nominal fan speed of 2,000 RPM and airflow of 100 cfm. The thermal sensor and motor control are integrated into the cooling assembly rather than requiring a separate external temperature-control component.

Frequently Asked Questions

Q: What electrical supply does the PHARPSFAN03000 require?
A: The supplied specification identifies a 24 VDC supply with a current rating of 0.5 A.

Q: Does the fan operate at a fixed speed?
A: No. The supplied technical description identifies a variable-speed motor whose speed changes according to system temperature.

Q: How is fan activation controlled?
A: An integrated thermal sensor initiates fan operation when the system reaches the predetermined temperature threshold. The exact threshold value is not specified in the supplied data.

Field Installation Guidelines

• Verify the available supply is 24 VDC before connecting the fan assembly.
• Confirm the power circuit can supply the specified 0.5 A current.
• Install the assembly with sufficient clearance for the specified airflow path.
• Keep fan intake and exhaust openings free from cable bundles, dust accumulation, and other airflow obstructions.
• Route the DC supply wiring separately from high-current switching conductors where practical to reduce electrical interference.
• Secure the assembly mechanically according to the applicable MPS III enclosure or chassis arrangement.
• Verify that the thermal-sensing area is exposed to the intended system air temperature rather than an isolated heat source.
• After installation, verify fan activation and variable-speed response during system temperature changes.
• The supplied source contains conflicting dimensional and weight values; verify the applicable mechanical drawing or ABB documentation before final mounting.