5SY6403-7

Product ID:205309
Updated: 2026/4/4
Siemens 5SY6403-7

Key Features

  • 1Ensure robust protection with a 6kA short-circuit breaking capacity. 2、Achieve long-term reliability through a 10,000-cycle mechanical service life. 3、Simplify installation via DIN rail mounting compatibility. 4、Enhance safety with halogen-free, sealable, and silicon-free construction. 5、Support diverse applications with 230/400V AC and 72V DC operation.
Product Details
5SY6403-7
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Protection Rating IP
IP20
Overvoltage Category
3
Current Limiting Class
3
Release Characteristic
C
Voltage Type
AC
Lifecycle
Delivery Release (PM300)
Country of Origin
Germany
ECCN
N
AL
N
Model Number
5SY6403-7

Specifications may be subject to change without notice