Marathon B319 Motor
The Marathon B319 3/4 HP Blower Motor is a rugged, NEMA 56 frame induction motor designed for reliable service in HVAC centrifugal blowers and fan applications. Operating at a synchronous speed of 1800 RPM (1725 RPM nameplate), this single-phase powerhead features a capacitor start design to provide the high starting torque required for heavy-duty air moving equipment. Built with a heavy-gauge steel rolled frame and ball bearings, the B319 is engineered for continuous duty in clean, dry environments. The open drip proof (ODP) enclosure ensures effective cooling while protecting internal components from falling moisture. For versatile field installation, it includes a resilient base with extended studs and supports selective CCW rotation. This motor serves as a direct replacement for Century C654 and C654V1, as well as model 100012.00, ensuring a seamless drop-in fit for contractors maintaining older air handling units.
- Universal Voltage Compatibility: Rated for 115/208-230V at 60Hz, allowing for flexible wiring in various commercial and residential settings.
- High Service Factor: Features a 1.25 service factor, providing additional thermal headroom during peak load conditions.
- Integrated Protection: Equipped with automatic reset thermal overload protection to prevent winding failure during stall or over-current events.
- Durable Mounting: The resilient base mount dampens vibration and reduces noise transfer through the blower housing.
Is the Marathon B319 motor reversible?
Yes, this unit is electrically reversible, though it is often factory-set for selective CCW rotation to match standard centrifugal fan rotations. Always verify lead connections against the wiring diagram on the nameplate before applying power.
Can this motor replace a 56H frame motor?
The B319 uses a standard NEMA 56 frame. While the mounting hole patterns are often compatible with 56H, you should verify the 5/8-inch keyed shaft length and diameter to ensure proper pulley alignment in belt-drive configurations.
What are the full load amps for this 3/4 HP motor?
Under full load, the motor draws 10.0 Amps at 115V or 5.2-5.0 Amps at 208-230V. Ensure your circuit breakers and wiring gauges are sized for these current demands.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Marathon B319 Motor
The Marathon B319 3/4 HP Blower Motor is a rugged, NEMA 56 frame induction motor designed for reliable service in HVAC centrifugal blowers and fan applications. Operating at a synchronous speed of 1800 RPM (1725 RPM nameplate), this single-phase powerhead features a capacitor start design to provide the high starting torque required for heavy-duty air moving equipment. Built with a heavy-gauge steel rolled frame and ball bearings, the B319 is engineered for continuous duty in clean, dry environments. The open drip proof (ODP) enclosure ensures effective cooling while protecting internal components from falling moisture. For versatile field installation, it includes a resilient base with extended studs and supports selective CCW rotation. This motor serves as a direct replacement for Century C654 and C654V1, as well as model 100012.00, ensuring a seamless drop-in fit for contractors maintaining older air handling units.
- Universal Voltage Compatibility: Rated for 115/208-230V at 60Hz, allowing for flexible wiring in various commercial and residential settings.
- High Service Factor: Features a 1.25 service factor, providing additional thermal headroom during peak load conditions.
- Integrated Protection: Equipped with automatic reset thermal overload protection to prevent winding failure during stall or over-current events.
- Durable Mounting: The resilient base mount dampens vibration and reduces noise transfer through the blower housing.
Is the Marathon B319 motor reversible?
Yes, this unit is electrically reversible, though it is often factory-set for selective CCW rotation to match standard centrifugal fan rotations. Always verify lead connections against the wiring diagram on the nameplate before applying power.
Can this motor replace a 56H frame motor?
The B319 uses a standard NEMA 56 frame. While the mounting hole patterns are often compatible with 56H, you should verify the 5/8-inch keyed shaft length and diameter to ensure proper pulley alignment in belt-drive configurations.
What are the full load amps for this 3/4 HP motor?
Under full load, the motor draws 10.0 Amps at 115V or 5.2-5.0 Amps at 208-230V. Ensure your circuit breakers and wiring gauges are sized for these current demands.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Marathon B319 3/4 HP Blower Motor is a rugged, NEMA 56 frame induction motor designed for reliable service in HVAC centrifugal blowers and fan applications. Operating at a synchronous speed of 1800 RPM (1725 RPM nameplate), this single-phase powerhead features a capacitor start design to provide the high starting torque required for heavy-duty air moving equipment. Built with a heavy-gauge steel rolled frame and ball bearings, the B319 is engineered for continuous duty in clean, dry environments. The open drip proof (ODP) enclosure ensures effective cooling while protecting internal components from falling moisture. For versatile field installation, it includes a resilient base with extended studs and supports selective CCW rotation. This motor serves as a direct replacement for Century C654 and C654V1, as well as model 100012.00, ensuring a seamless drop-in fit for contractors maintaining older air handling units.
- Universal Voltage Compatibility: Rated for 115/208-230V at 60Hz, allowing for flexible wiring in various commercial and residential settings.
- High Service Factor: Features a 1.25 service factor, providing additional thermal headroom during peak load conditions.
- Integrated Protection: Equipped with automatic reset thermal overload protection to prevent winding failure during stall or over-current events.
- Durable Mounting: The resilient base mount dampens vibration and reduces noise transfer through the blower housing.
Is the Marathon B319 motor reversible?
Yes, this unit is electrically reversible, though it is often factory-set for selective CCW rotation to match standard centrifugal fan rotations. Always verify lead connections against the wiring diagram on the nameplate before applying power.
Can this motor replace a 56H frame motor?
The B319 uses a standard NEMA 56 frame. While the mounting hole patterns are often compatible with 56H, you should verify the 5/8-inch keyed shaft length and diameter to ensure proper pulley alignment in belt-drive configurations.
What are the full load amps for this 3/4 HP motor?
Under full load, the motor draws 10.0 Amps at 115V or 5.2-5.0 Amps at 208-230V. Ensure your circuit breakers and wiring gauges are sized for these current demands.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
