Reliance Electric FB56C PB9 AC Induction Motor

Description:

The Reliance Electric FB56C Motor with Blower PB9 is used in industrial air-moving and fan-cooled motor systems to provide reliable mechanical power with integrated cooling for continuous-duty operation. Commonly installed in HVAC equipment, blower assemblies, ventilation systems, and industrial machinery where forced-air cooling is required to maintain motor performance under sustained load conditions. Maintenance teams, OEM manufacturers, and system integrators use this motor for replacement, retrofit, system upgrades, and repair of blower-driven motor applications in industrial environments.

Applications:

The Reliance Electric FB56C motor with PB9 blower is commonly used in industrial ventilation and process cooling systems including HVAC units, air handling systems, exhaust blowers, dust collection systems, and enclosed machinery requiring forced-air motor cooling to maintain thermal stability during continuous operation in manufacturing and processing environments.

Technical Specifications:

• Manufacturer: Reliance Electric
• Model / Part number: FB56C with PB9 blower
• Product type: AC induction motor with mounted blower assembly
• Frame size: FB56C
• Enclosure type: Typically TEFC / blower-cooled configuration (PB9)
• Voltage: 208–230/460V (typical FB56C series rating)
• Frequency: 60 Hz
• Phase: 3-phase
• Speed: ~1725 RPM (4-pole motor class)
• Shaft diameter: 5/8" (typical FB56C configuration)
• Power range: ~0.33–1 HP depending on configuration
• Cooling method: External blower (PB9) forced-air cooling
• Duty rating: Continuous duty
• Mounting: NEMA FB frame mounting
• Function: Motor-driven airflow for cooling and ventilation systems

Common Replacements:

• Baldor-Reliance 56C TEFC blower-cooled motor equivalent
• Marathon Electric 56 frame blower motor (forced-air cooled variant)
• Leeson 56C frame HVAC duty blower motor