Nidec/US Motors 1.5 HP [21.6A] [56J/CF] Pool Motor (ASB129)

Type:	Pump Motors
Mfg	Nidec/US Motors
Mfg Part #	ASB129
Replaces:	38628, 5238-118
Works With:	Pool Motor
Phase:	1-Phase
Horsepower:	1.5 HP (2.25 THP)
Frame:	56J Frame - C-Face
Speed:	1-Speed
Voltage:	115V/230V
Amperage:	21.6A/10.8A
Mount:	Threaded

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TAGS: pumpmotors, usmotors

Details

Nidec and US Motors pool motors are a trusted solution for dependable replacement service, and this 1.5 HP model uses the ASB129 reference with a 21.6 amp draw and 56J C-face configuration. A known replacement line like Nidec US Motors is especially valuable when both electrical performance and exact mounting compatibility matter.

This motor has practical value because the 56J C-face format is a major fit detail in many pool pump systems. Matching the right horsepower, amperage, and frame configuration helps preserve wet-end compatibility and contributes to a more predictable installation process.

This type of motor is especially useful when the original motor has failed but the existing pool pump assembly is otherwise structurally sound. That makes a correctly matched motor replacement a more efficient alternative to replacing the complete pump.

Installed in the proper application, this Nidec US Motors pool motor helps support reliable operation, accurate fitment, and stronger long-term service confidence.

1.5 HP pool motor in the trusted Nidec US Motors replacement line
Rated at 21.6 amps with a 56J C-face configuration
Helps restore dependable performance in compatible pool pump systems
Useful when replacing a failed original motor while retaining the wet end
Improves fit confidence and replacement accuracy

Nidec / U.S. Motors – Pool Pump Motors, Electric Motors and Replacement Motor Parts

Who is Nidec / U.S. Motors?

Nidec / U.S. Motors is a leading manufacturer of electric motors and drive systems, part of the global Nidec Corporation. With over a century of engineering expertise, U.S. Motors has become a trusted name in high-performance motor solutions used across HVAC, industrial, and pool and spa applications. Their motors are widely recognized for reliability, efficiency, and long service life.

What products does Nidec / U.S. Motors specialize in?

Nidec / U.S. Motors specializes in electric motors including pool pump motors, variable speed motors, single-speed motors, and replacement motor components. Their product lineup includes motors designed to power pumps, filtration systems, and water features, ensuring proper water circulation and system performance.

Why choose Nidec / U.S. Motors parts for your pool or spa?

Nidec / U.S. Motors products are known for durability, energy efficiency, and consistent performance. Their motors are engineered to operate in demanding environments, handling continuous use, high humidity, and temperature fluctuations. Pool professionals and homeowners choose Nidec for dependable motor replacements that improve efficiency and extend equipment life.

How do you identify and choose the correct Nidec / U.S. Motors part?

To select the correct motor, it’s important to match specifications such as horsepower (HP), service factor (SF), voltage, frame size, RPM, and shaft type. Verifying model numbers and compatibility with your existing pump ensures proper fit and operation. Choosing the right motor helps maintain efficient performance and prevents system damage.

Need help finding the right Nidec / U.S. Motors part?

At Bath & Spa Parts Online, we carry a wide selection of Nidec / U.S. Motors pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.