We source directly from Eaton - 100% genuine, new-in-box certified parts.
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Eaton / Moeller Series
500A, 3P, soft starter, premium 600V with inline or inside-the-delta wiring and LCD display
The Eaton S811+U50P3S soft starter is a premium, high-capacity motor starting solution designed for demanding three-phase motor applications. Rated at 500 A with a full load current range of 156–500 FLA, it supports motors up to 400 hp at 480 V and operates across a wide 200–600 V voltage range at 47–63 Hz. This U-frame soft starter features a digital interface module with LCD display, Modbus RTU communication, and a 24 Vdc control supply. Designed for use with HLD circuit breakers and Class RK5 or Class J fuses, the S811+ provides reliable motor protection, flexible inline or inside-the-delta wiring, and a compact footprint ideal for retrofit and industrial installations.
We source directly from Eaton - 100% genuine, new-in-box certified parts.
| Brand | Eaton |
|---|---|
| Model | S811+U50P3S |
| Series | S811+ |
| Product Type | Soft Starter |
| Amperage Rating | 500 A |
| Full Load Current Range | 156–500 FLA |
| Horsepower Rating | 400 hp at 480 V |
| Number of Poles | Three-pole |
| Phase | Three-phase |
| Frame Size | U |
| NEMA Rating | NEMA 0 |
| Configuration | Inline or Inside-the-Delta |
| Bypass | Contactor |
| Brake Chopper | No brake chopper |
| Operating Voltage | 200–600 V |
|---|---|
| Voltage Rating | 480 V |
| Frequency Rating | 47–63 Hz |
| Control Voltage | 24 Vdc |
| AC Control Voltage (Max) | 240 Vac |
| DC Control Voltage (Max) | 120 Vdc |
| Communication | Modbus RTU |
| User Interface | Digital Interface Module |
| Display | LCD |
| Circuit Breaker Type | HLD |
| Fuse Type | Class RK5 or Class J |
| Wire Size | #4 AWG–500 kcmil |
| Number of Conductors | 1–2 |
| Options | Premium 600V |
| Product Dimensions (L × W × H) | 19 in × 14.5 in × 12.5 in |
| Product Volume | 3443.75 in³ |
| Product Weight | 45 lb |
| Packaging Dimensions (L × W × H) | 19 in × 14.5 in × 12.5 in |
| Packaging Weight | 45 lb |
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Doing business with KM Parts has been a game-changer for our company. Their vast inventory and prompt same-day shipping have significantly minimized our downtime. The team's expertise and willingness to go the extra mile have made them an invaluable partner in our industrial automation needs.
We only sell authorized Eaton/Moeller parts. No knock-offs, no used parts, all warrantied. As the largest authorized stocking USA distributor representing Eaton/Moeller, we’re here to help your company run smoothly, with the best parts available, at competitive pricing, and with minimal downtime.
