3US6640-3E
Product ID:122464
Updated: 2026/7/2

Key Features
- 1Ensure precise motor protection with a 10A tripping class.
- 2Operate reliably with a wide voltage range up to 380V.
- 3Enhance system reliability using the thermal memory function.
- 4Save panel space with a compact and versatile design.
- 5Invest in durable performance built with advanced technology.
Need a quote? Enter your quantity and get pricing fast.
Qty
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Operating Ambient Temperature | -40~+70°C | Operating Altitude | 2000m |
| Rated Voltage | AC400V | Matching Contactor | S10/S12 [3TS54/55/56] |
| Mounting Method | Plug-in Installation with Contactor | Specification | S10/S12 |
| Load Class | CLASS 10 | Current Setting Range | 250-400A |
| Rated Current (AC-3) | Maximum 400A for S10/S12 Size | Product Series | 3US5/6 Series |
| Lifecycle | Delivery Release (PM300) | Country of Origin | China |
| ECCN | N | AL | N |
| Model Number | 3US6640-3E |
Specifications may be subject to change without notice
Still deciding on 3US6640-3E?
Our engineers can confirm stock, price, and lead time for this Siemens part.
Get a no-obligation quote in 1 minute.
