Single Phase Motor Centrifugal Switch Starter Kit L19-304Y 3-Pack
Single Phase Motor Centrifugal Switch Starter Kit L19-304Y 3-Pack
Single Phase Mechanical Motor Centrifugal Switch – L19-304Y Starter Controller Kit (3-Pack)
Keep your electric motors running at peak efficiency with the A01F-3X Motor Centrifugal Switch Kit (Model L19-304Y). This 3-pack includes everything you need for a straightforward replacement of worn or faulty centrifugal switches in single-phase motors. Constructed from durable metal and high-quality plastic, these switches are engineered for reliable, long-lasting performance across a wide range of motor applications.
Key Features
- Wide Compatibility: Designed for use with all kinds of single-phase electric motors, including two-pole (3000 RPM, model ending in "2") and four-pole (1500 RPM, model ending in "4") configurations.
- Model Identification Made Easy: The number following the "L" in the model code indicates the large round hole size and motor shaft diameter — making it simple to confirm fitment before installation.
- Premium Construction: Built from a combination of metal and plastic components for structural integrity and electrical durability.
- Easy Drop-In Replacement: Provides a convenient, direct swap for broken or malfunctioning centrifugal switches — no major modifications required.
- 3-Pack Value: Each kit includes 3 base plates and 3 centrifugal apparatus units, giving you spares on hand for future maintenance.
- Low Voltage Rated: Suitable for low-voltage applications (below 50 V AC or 75 V DC).
Product Specifications
| Model | L19-304Y |
| Type | Mechanical Centrifugal Switch |
| Material | Metal + Plastic |
| Motor Phase | Single Phase |
| Pole Options | 2-Pole (3000 RPM) / 4-Pole (1500 RPM) |
| Voltage Rating | Below 50 V AC / 75 V DC |
| Package Includes | 3 × Base Plate, 3 × Centrifugal Apparatus |
| Country of Origin | Made in China |
How It Works
A centrifugal switch is a critical component in single-phase electric motors. During startup, the switch keeps the starting winding energized. Once the motor reaches approximately 70–80% of its full operating speed, centrifugal force causes the switch to open, disconnecting the starting winding so the motor runs efficiently on the main winding alone. This L19-304Y model is specifically sized to match motors with a corresponding shaft diameter — always verify your motor's shaft size before ordering.
Who Is This For?
This centrifugal switch kit is ideal for electricians, maintenance technicians, workshop owners, and DIY enthusiasts who need a dependable, cost-effective replacement part for single-phase motors used in pumps, compressors, lathes, grinders, and other motor-driven equipment.
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Frequently Asked Questions
Q: What motors is the L19-304Y centrifugal switch compatible with?
A: The L19-304Y centrifugal switch is compatible with single-phase electric motors, including two-pole (3000 RPM) and four-pole (1500 RPM) variants. The "19" in the model number refers to the motor shaft hole diameter — always verify your motor's shaft size matches the switch specifications before purchasing.
Q: What is included in the A01F-3X centrifugal switch kit?
A: Each kit includes 3 base plates and 3 centrifugal apparatus units, giving you a complete set of replacement components for up to 3 motors, or providing backup spares for future maintenance needs.
Q: How do I know if my motor's centrifugal switch needs replacing?
A: Common signs of a faulty centrifugal switch include the motor failing to start, the motor humming without spinning, or the motor running hotter than usual. If the starting winding remains engaged or fails to engage, the centrifugal switch is often the cause and should be inspected and replaced.
Q: Is this centrifugal switch suitable for high-voltage applications?
A: No. This switch is rated for low-voltage use only — below 50 V AC or 75 V DC. Please ensure your motor's electrical specifications fall within this range before installation.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.