U438 Marathon General Purpose AC Motors
KKM Solutions is an independent parts distributor, not an authorized Marathon dealer — how we source.
Overview
Part number U438 from Marathon, listed in General Purpose AC Motors. Specifications on file: Catalog Number U438; Duty Continuous; Enclosure Type ODP; Frame 256TC. KKM Solutions quotes this part with pricing and availability confirmed per order.
Feature NEMA Service Factors UL Recognized and CSA Certified Will accept C-Face Kits Other Purpose Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 208-230/460 & 190/380 V, 1800 & 1500 RPM, 256TC Frame, DP - Marathon catalog number U438 (ordering code 256TTDX4345). Marathon specifications: Phase: 3; Output HP: 20 & 15 Hp; Output KW: 14.9 & 11.2 kW; Voltage: 208-230/460 & 190/380 V; Speed: 1760 & 1465 rpm; Service Factor: 1.15 & 1.15; Frame: 256TC; Thermal Protection: No Protection; Efficiency: 91 & 90.2 %; Ambient Temperature: 40 °C; Frequency: 60 & 50 Hz; Current: 55-52/26 & 47/23.5 A; Power Factor: 79.3; Duty: Continuous; Insulation Class: B; Design Code: A; KVA Code: H; Drive End Bearing Size: 6309; Opp Drive End Bearing Size: 6208; Enclosure: Drip Proof; UL: Recognized; CSA: Y.
Specifications
| Catalog Number | U438 |
|---|---|
| Duty | Continuous |
| Enclosure Type | ODP |
| Frame | 256TC |
| Frame Material | Rolled Steel |
| Frequency | 60 Hz |
| Full Load Amps | 55.0-52.0/26.0 |
| Horsepower | 20 HP |
| Model | 256TTDX4345 |
| Mounting | C-Face / Rigid |
| Phase | 3 |
| Product Line | General Purpose |
| Speed | 1760 RPM |
| Weight | 185 lb |
Product details
| Manufacturer | Marathon |
|---|---|
| Manufacturer part number | U438 |
| Product category | General Purpose AC Motors |
| Published specifications | 14 attributes listed |
| Related part numbers | 1 other part number in this family |
Request a quote for this part
Email orderdesk@kkmsolutions.com or call (825) 454-5367 for pricing and availability.
Frequently Asked Questions
How do I get pricing for U438?
This part is quoted on request, so no price is listed for it here. Send the quote form on this page with your quantity, or email orderdesk@kkmsolutions.com, and our order desk will reply with pricing and availability within 1 business day.
Who manufactures the U438?
U438 is made by Marathon and is listed in our General Purpose AC Motors category. KKM Solutions is an independent distributor, not an authorized Marathon dealer: we source the exact Marathon part number U438, and the quote confirms condition and lead time before you order.
Is the U438 new and genuine?
Parts we supply are new and genuine unless the quote expressly states otherwise. Where a part is new-old-stock, from excess inventory, refurbished or open-box, the quote says so before you approve it.
What warranty comes with the U438, and can I return it?
Parts we supply are warranted against manufacturing defects for 1 year from the date of delivery; where the manufacturer's own warranty is longer, the manufacturer's warranty applies. The warranty covers repair, replacement, or credit of the defective part and does not cover normal wear items, misapplication, improper installation, or consequential damages. Contact us within 30 days of delivery before returning anything — all returns need a return authorization from the order desk.
What is the lifecycle status of U438?
No published lifecycle status is on file for U438. Marathon lists whether a catalog number is current, superseded or end-of-life on its own product page, and our order desk confirms the status with the manufacturer at quote time, before you commit. Send the part number through the quote form on this page.
What are the key specifications of U438?
Key specifications include Catalog Number: U438; Duty: Continuous; Enclosure Type: ODP; Frame: 256TC. The full specification table on this page lists every published attribute for this part.
What is the power rating of U438?
Per the published specification for U438: Horsepower: 20 HP. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
How much does U438 weigh?
Per the published specification for U438: Weight: 185 lb. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
How quickly can U438 ship?
Lead time for U438 is quoted per order and confirmed on your quote, which our order desk sends within 1 business day. For a line-down emergency, call the 24/7 order desk at (825) 454-5367.
Variants & Related Part Numbers
Other Marathon part numbers in this family:
Frequently Searched Marathon Part Numbers
Related Products
Marathon Marathon U437
Marathon Marathon U438A
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