ABB Bailey IPFAN11 Fan Assembly | Redundant Cooling INFI 90

This fan assembly provides forced-air cooling for ABB Bailey INFI 90 rack enclosures. It circulates air across the backplane and installed modules to prevent overheating. Therefore, it ensures reliable operation of all system components in warm environments.

Physical and Cooling Specifications

The ABB Bailey IPFAN11 measures 25.0 cm in length and 9.0 cm in width. Moreover, its fan assembly weight equals approximately 0.65 kg for rack mounting. A single 4-pin connector provides power from the INFI 90 backplane. Additionally, the assembly includes two independent cooling fans for redundancy.

Parameter	Specification
Brand	ABB Bailey
Full Model	IPFAN11
Category	Fan Assembly
Dimensions (L x W x H)	25.0 cm x 9.0 cm x 8.0 cm (9.84″ x 3.54″ x 3.15″)
Fan Assembly Weight	0.65 kg (1.43 lbs)
Power Interface	1 x 4-pin Male Connector (INFI 90 Backplane)
Number of Fans	2 Independent Units
Fan Type	Axial (Brushless DC)
Fan Size	80 mm x 80 mm x 25 mm (3.15″ x 3.15″ x 0.98″)
Operating Voltage	24 VDC (19.2 to 28.8 VDC)
Power Consumption per Fan	2.4 W (Typical)
Total Power Consumption	4.8 W (Typical)
Airflow per Fan	35 CFM (Cubic Feet per Minute)
Airflow Total	70 CFM (Combined)
Static Pressure	0.12 inches H₂O
Fan Speed	3000 RPM (Nominal)
Noise Level	30 dBA (Typical)
Bearing Type	Dual Ball Bearing
Fan Life	50,000 Hours (Minimum at 25°C)
MTBF	100,000 Hours
Redundancy	Yes (Single Fan Failure Does Not Stop Cooling)
Fan Fail Detection	Yes (Tachometer Output per Fan)
Speed Control	Fixed (No Variable Speed)
On-Board Components	2 Brushless DC Motors + 2 Fan Blades + 2 Tachometer Sensors + 4 Protection Diodes + 1 LED Driver IC
Energy Storage	None (Passive Fan Assembly)
Operating Temperature	0°C to +55°C (32°F to 131°F)
Storage Temperature	-25°C to +85°C (-13°F to 185°F)
Mounting Type	INFI 90 Rack (Bottom or Top Slot)
Status Indicators	2 Green LEDs (Fan OK) + 1 Red LED (Fan Fail)

Cooling Performance and Airflow Management

The ABB Bailey IPFAN11 circulates 70 cubic feet per minute through the INFI 90 rack. Specifically, each fan draws air across the backplane and module circuits. In addition, the axial design provides optimal airflow for card cage cooling. Moreover, the dual ball bearings ensure long life in continuous operation. Furthermore, the fans operate at 3000 RPM to balance airflow and noise. Consequently, this fan assembly maintains safe temperatures for all INFI 90 system components.

Redundant Fan Configuration

Two independent fans provide redundant cooling for critical INFI 90 racks. For instance, if one fan fails, the second fan continues cooling the system. In addition, the fans draw power independently from the 24 VDC backplane supply. Moreover, each fan includes a tachometer output for speed monitoring. Furthermore, the control logic detects fan stall or failure conditions. Thus, the ABB Bailey IPFAN11 ensures continuous cooling even during single fan failure.

Fan Fail Detection and Status Monitoring

This fan assembly includes comprehensive failure detection for each fan unit. Specifically, the tachometer outputs provide real-time speed feedback to the system. In addition, LED indicators show the operational status of each fan. Moreover, the system can generate alarms when fan speed drops below a threshold. Furthermore, the assembly includes protection diodes against reverse polarity. Therefore, you can monitor fan health and replace failed units before overheating occurs.

Installation and Diagnostic Indicators

Three LED indicators provide operational status at a glance on this assembly. First, two green Fan OK LEDs light when each fan operates at normal speed. Second, a red Fan Fail LED illuminates when either fan fails or stops. Additionally, the fan assembly mounts at the bottom or top of the INFI 90 rack. Furthermore, the 4-pin connector plugs directly into the backplane without tools. Thus, you can diagnose cooling status instantly without external equipment.