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Full technical specifications appear below this section.
See the description below for full product details.
Typical applications include industrial machinery, HVAC systems, pumps, fans, conveyors, and general-purpose commercial equipment. Consult with our technical team for application-specific recommendations.
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$295.00
Powered by Marathon’s century-long heritage of American engineering excellence, the Marathon B307 Fan and Blower Motors is built to deliver robust performance, high efficiency, and consistent torque across demanding industrial and commercial applications. With key specifications including 1/2 HP, 115 V, 1800 RPM, a durable 48Y frame, and 7.5 Amps, this motor provides reliable, stable operation from the moment it is installed.
Constructed using premium materials and Class B insulation, the B307 features a rugged DP enclosure designed to withstand harsh environments, including high-moisture, dusty, and heavy-load conditions. Engineered for continuous Continuous duty, it delivers reduced thermal stress, lower vibration, and long-lasting durability, even in severe-duty or inverter-driven applications.
Designed for versatility, the Marathon B307 Fan and Blower Motors performs exceptionally well in pumps, compressors, HVAC systems, conveyors, material-handling equipment, agricultural machinery, and OEM industrial systems. Its Resilient Base – Extended Studs configuration and broad NEMA/IEC compatibility make integration simple for both new installations and direct replacement scenarios.
Backed by Marathon’s reputation for durability, energy efficiency, and industry-proven reliability, this motor offers an excellent balance of performance and long service life. Electracore is your trusted Canadian supplier of genuine Marathon motors, providing expert technical guidance and fast nationwide delivery.
| Brand | Marathon |
|---|---|
| General Category | HVAC > Fan and Blower Motors |
| Product Category | HVAC/R Motors |
| Sub Category | Fan and Blower Motors |
| Horsepower | 1/2 |
| Voltage | 115 |
| RPM | 1800 |
| Amps | 7.5 |
| Frequency | 60 |
| Frame | 48Y |
| Enclosure | DP |
| Rotation | Selective Counterclockwise |
| Mounting | Resilient Base – Extended Studs |
| Max Ambient | 40°C |
| Phases | 1 |
| Assemblybox Mounting | F1 ONLY |
| Motor Orientation | Horizontal |
| Motor Type | Split Phase |
| Number Of Poles | 4 |
| CSA Certified | Yes |
| CE Certified | No |
| Duty Cycle | Continuous |
| Efficiency | 66 |
| Insulation Class | B |
| IP Rating | 22 |
| KVA Code | M |
| NEMA Design | NO DESIGN CODE |
| Starting Type | Across The Line |
| Overload Protector | Automatic |
| Power Rating In Kw | 0.37 |
| Speeds | 1 |
| Power Factor | 68.5 |
| Service Factor | 1.25 |
| Speed2 | 1725 |
| De Bearing Size | 6203 |
| De Bearing Type | Ball |
| Ode Bearing Size | 6203 |
| Ode Bearing Type | Ball |
| Dim Unit | IN |
| Length | 11.06 |
| Width | 6.75 |
| Height | 6.62 |
| Shaft Diameter | 0.500 |
| Shaft Extension | 2.01 |
| Shaft Type | Single Special Extension |
| C Dim | 10.32 |
| Frame Material | Rolled Steel |
| Weight Unit | LB |
| Weight | 19.00 |
| Url-3d Cad | https://ids.regalbeloit.com/CnxDocRequest/PublishedPDF/2017/documents/52A111273_Rev05.zip |
| Url-datapack | https://cdnmedia.regalbeloit.com/images/d120001/medias/docus/1996/Article_048S17D2059_DataPack_9.pdf |
| Connection Drawing No | 52A105379AA |
| Outline Drawing No | 52A111273 |
| Ul | Recognized |
| Manufacturer | Regal Beloit |
| Part ID | 048S17D2059 |
| UPC | 722856039880 |
| Supersedes | N/A |
| Features | Automatic reset thermal protector prevents overheating. Patented MAXGuard® insulation system offers superior protection for use with a variable frequency drive. Permanently lubricated, double-sealed bearings extend the lifetime of the motor. Ambient temperature up to 70°C allows for consistent operation in a range of environments and applications. Vertical/horizontal mounting for proper placement of the fan within airflow. |
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Marathon Motors provides durable, energy-efficient electric motors designed for industrial and commercial applications, including pumps, HVAC systems, compressors, conveyors, and material-handling equipment. Built for long service life and dependable performance, Marathon’s NEMA and IEC motors are trusted worldwide. Electracore is your reliable Canadian supplier of authentic Marathon products with fast delivery and technical guidance.
Matched products based on similar HP, RPM, Frame, Voltage, and Enclosure type.
HP: 1/2, RPM: 1800, Frame: 48Y, Voltage: 115, Enclosure: DP
| HP | 1/2 |
| RPM | 1800 |
| VOLTAGE | 115 |
| FRAME | 48Y |
| PHASE | 1 |
| ENCLOSURE | DP |
