3KF4440-4RF11

Product ID:177601
Updated: 2026/4/5
Siemens 3KF4440-4RF11

Key Features

  • 1Protect circuits with a 400A load switch designed for NH fuse sizes 1 and 2. 2、Enhance operator safety using the right-side wall-mounted drive mechanism. 3、Simplify panel integration with a basic unit featuring a compact, flat-terminal design. 4、Ensure reliable isolation for applications requiring emergency switching-off mechanisms. 5、Rely on Siemens engineering for durable performance backed by a comprehensive warranty.
Product Details
3KF4440-4RF11
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
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 Right Side of the Switch, Surface Mounting
Mounting Type
Surface Mounting
Fuse Specification
Size: 1/2
Terminal Type
Flat Terminal
Poles
4P
In(A)
400
Specification
3KF4_400
Switch Type
Basic Unit, Side Operation Mechanism, No Handle, Operation Mechanism Module Located on the Right Side of the Switch
Lifecycle
Delivery Release (PM300)
Country of Origin
China
ECCN
N
AL
N
Model Number
3KF4440-4RF11

Specifications may be subject to change without notice