Description
The A.O. Smith [Century] C-Face 1/2 HP Motor, model ST1052 with 56J frame, brings OEM-grade reliability to residential, commercial, and light industrial equipment. Built under the Century/A.O. Smith lineage and supported by Regal Beloit America, this dual-voltage, single-phase motor is designed to slot into standard systems with minimal fuss and maximum performance. Whether you’re replacing a worn-out unit or upgrading an aging drive, this motor is engineered to keep critical systems running smoothly.
Key specifications at a glance
- Horsepower: 1/2 HP
- Frame: 56J
- Mounting: C-Face for straightforward, drop-in installation
- Voltage: 115/230V (dual voltage for flexible wiring and compatibility)
- Speed designation: 1-S (single-speed design commonly used in HVAC and equipment fans)
Why this motor stands out
When you choose A.O. Smith / Century, you’re selecting a motor built to exacting OEM standards with a heritage spanning more than seven decades. Regal Beloit America, the parent company behind Century, continues that commitment to quality, supporting a wide network across the United States, Mexico, China, and Europe. This means easy access to compatible replacements, spare parts, and technical guidance when you need it. The ST1052 is part of a comprehensive family of motors—ranging from hermetic models for air conditioning compressors to fractional horsepower and integral horsepower motors—so you can trust the performance aligns with the original equipment your system was designed around.
Bath & Spa Parts Online has a long-standing history of carrying Century/A.O. Smith replacement motors, making this model a familiar and dependable choice for pool, spa, HVAC, and related equipment. If you’re restoring a trusted system, this motor fits the bill with OEM-grade construction and proven durability.
Ideal applications and use cases
- Residential HVAC components (air handlers, furnaces, evaporative units) that require a reliable 1/2 HP, dual-voltage, single-phase motor
- Pool and spa pumps and related equipment where a standard 56J, C-Face footprint is needed
- Light commercial fans, blowers, and circulating pumps that rely on a robust, easy-to-install motor
Installation and practical considerations
This motor’s 56J frame and C-Face mounting are designed for compatibility with a wide range of OEM housings and mounting patterns. For best results, verify voltage supply (115V or 230V) and confirm the mounting footprint matches your existing hardware. As with any replacement motor, follow standard electrical safety practices, consult your equipment’s service manual for wiring diagrams, and ensure proper shaft alignment and secure fastenings during installation. If you’re unsure about compatibility, rely on the trusted lineage of A.O. Smith/Century and Regal Beloit for guidance and compatible options within the same product family.
What to expect after installation
With this motor, you should experience dependable performance for routine operating cycles in HVAC and pool/spa applications. The combination of a proven design, Century’s manufacturing quality, and the ability to operate on either 115V or 230V helps optimize energy use and uptime in everyday systems. Regular inspection of electrical connections and mounting hardware will support long service life and quiet, steady operation.
Trusted heritage and ongoing support
For more than 75 years, A.O. Smith Electric Motors and Century have served residential, commercial, and industrial markets with reliable, replacement-grade solutions. After Regal Beloit’s acquisition, the brand continues to deliver global reach, a broad product catalog, and the assurance that OEM standards are preserved across the motor family. If you have questions about fit, voltage, or installation specifics, our team is ready to help you navigate to the right replacement within the Century/A.O. Smith line.
Ready to secure a durable, OEM-compatible solution for your equipment? Add the A.O. Smith [Century] C-Face 1/2 HP Motor (ST1052) to your cart and experience the dependable performance that comes from a time-tested motor family.
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Regal Beloit America, Inc. (Century Electric Motors / A.O. Smith Electric Motors) is a leading supplier of electric motors for residential, commercial, and industrial applications. With operations in the United States, Mexico, China, and Europe, Regal Beloit America, Inc. has the ability to serve its customers electric motor needs on a global basis. We offer a comprehensive line of hermetic motors (used in air conditioning compressors), fractional horsepower A/C and D/C motors, and integral horsepower motors. We sell our products directly to original equipment manufacturers (OEMs), and replacement motors to HVAC and pool/pump distributors. |
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