Photo on request: ask us for an image of this part
R451B Marathon 4HP TERRAMAX B3 IEC Metric Motor
KKM Solutions is an independent parts distributor, not an authorized Marathon dealer — how we source.
R451B MARATHON 4HP TERRAMAX B3 IEC Metric Motor is designed for use on equipment requiring IEC dimensions and electrical standards.
Overview
Part number R451B from Marathon, listed in Electric Motors. Specifications on file: Duty Continuous; Enclosure Type TEFC; Frame 100L; Frame Material Cast Iron. KKM Solutions quotes this part with pricing and availability confirmed per order.
R451B MARATHON 4HP TERRAMAX B3 IEC Metric Motor is designed for use on equipment requiring IEC dimensions and electrical standards. Cast Iron Motor, 4 HP, 3 Ph, 60 Hz, 575 V, 3600 RPM, 100L Frame, TEFC - Marathon catalog number R451B (ordering code TCA0031AP211GAA009). Marathon specifications: Phase: 3; Output HP: 4 Hp; Output KW: 3 kW; Voltage: 575 V; Speed: 3500 rpm; Service Factor: 1.15; Frame: 100L; Thermal Protection: No Protection; Efficiency: 88.5 %; Ambient Temperature: 40 °C; Frequency: 60 Hz; Current: 3.9 A; Power Factor: 89; Duty: Continuous; Insulation Class: F; Design Code: N (IEC); KVA Code: K; Drive End Bearing Size: 6206; Opp Drive End Bearing Size: 6206; Enclosure: Totally Enclosed Fan Cooled; UL: Recognized; CSA: N.
Specifications
| Duty | Continuous |
|---|---|
| Enclosure Type | TEFC |
| Frame | 100L |
| Frame Material | Cast Iron |
| Frequency | 60 Hz |
| Full Load Amps | 3.9 A |
| Horsepower | 4 HP |
| Mounting | B3 |
| Phase | 3 |
| Power | 4 HP |
| Speed | 3500 RPM |
| Voltage | 575V |
Product details
| Manufacturer | Marathon |
|---|---|
| Manufacturer part number | R451B |
| Product category | Electric Motors |
| Published specifications | 12 attributes listed |
| Related part numbers | 3 other part numbers 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 much does R451B cost?
R451B is listed at CA$1,368.77 (CAD) and can be ordered directly from this page with Add to Cart. That figure is a reference price and can change: your card is authorized at checkout and charged only once our order desk confirms the part, stock, and final price, and we email you first if anything has moved. Larger quantities or custom terms — email orderdesk@kkmsolutions.com for a volume quote.
Who manufactures the R451B?
R451B is made by Marathon and is listed in our Electric Motors category. KKM Solutions is an independent distributor, not an authorized Marathon dealer: we source the exact Marathon part number R451B, and the quote confirms condition and lead time before you order.
Is the R451B 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 R451B, 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 R451B?
No published lifecycle status is on file for R451B. 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 R451B?
Key specifications include Duty: Continuous; Enclosure Type: TEFC; Frame: 100L; Frame Material: Cast Iron. The full specification table on this page lists every published attribute for this part.
What voltage does R451B use?
Per the published specification for R451B: Voltage: 575V. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
What is the power rating of R451B?
Per the published specification for R451B: Horsepower: 4 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 quickly can R451B ship?
Lead time for R451B 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
Photo on request
Marathon R450 50HP TERRAMAX B3 IEC Metric Motor
Photo on request
Marathon R452B 4HP TERRAMAX B3 IEC Metric Motor
Photo on request
Marathon R449 50HP TERRAMAX B3 IEC Metric Motor
Photo on request
Marathon R500A 60HP TERRAMAX B3 IEC Metric Motor
Photo on request
Marathon R448 50HP TERRAMAX B3 IEC Metric Motor
Photo on request
Marathon R501A 60HP TERRAMAX B3 IEC Metric Motor
More Electric Motors parts
Technical Guides
Browse more Marathon Electric Motors, or see everything from Marathon.