3KF4440-4LF11
Product ID:218957
Updated: 2026/6/22

Key Features
- 1Handle 400A loads in high-capacity 4-pole setups.
- 2Operate safely using the door-coupling rotary mechanism.
- 3Withstand harsh conditions with robust IP65 protection.
- 4Integrate easily with standard LV HRC fuses.
- 5Choose flexible floor or board mounting options.
Need a quote? Enter your quantity and get pricing fast.
Qty
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| DC Insulation Voltage (V) | 220VDC/440VDC | AC Rated Voltage (V) | 690 |
| Insulation Voltage (V) | 1000 | Description | 3KF LV HRC (General Fuse), rated current 400A, basic unit — side operation mechanism, no handle, operation mechanism module located on the left side of the switch, surface mount |
| Mounting Type | Surface mount | Fuse Specification | Size: 1/2 |
| Terminal Type | Flat terminal | Number of Poles | 4P |
| In(A) | 400 | Specification | 3KF4_400 |
| Switch Type | Basic unit, side operation mechanism, no handle, operation mechanism module located on the left side of the switch | Lifecycle | Delivery Release (PM300) |
| Country of Origin | China | ECCN | N |
| AL | N | Model Number | 3KF4440-4LF11 |
Specifications may be subject to change without notice
Still deciding on 3KF4440-4LF11?
Our engineers can confirm stock, price, and lead time for this Siemens part.
Get a no-obligation quote in 1 minute.
