The 3WN6321-0GV58-3KA1 is a fixed-mounted air circuit breaker from Siemens' 3WN6 series, designed for low-voltage power distribution systems. This breaker provides reliable overcurrent and short-circuit protection for industrial and commercial applications.
Key Features
✔ High breaking capacity up to 65kA
✔ Advanced trip unit with communication capability
✔ Fixed installation design for panel mounting
✔ Energy monitoring functionality
✔ Modbus RTU communication (optional)
Parameter Specification
Rated current (Iu) 630A
Rated operational voltage (Ue) 690V AC
Rated insulation voltage (Ui) 1000V AC
Ultimate breaking capacity (Icu) 65kA at 415V
Rated short-time withstand current (Icw) 50kA/1s
3.2 Trip Unit Characteristics
ETU (Electronic Trip Unit): Micrologic 5.0A
Protection functions:
Long-time delay (L)
Short-time delay (S)
Instantaneous (I)
Ground fault (G)
Adjustable settings via front panel
3.3 Mechanical Data
Enclosure size: 3-pole, 250mm width
Mounting: Fixed
Terminals: Front and rear access
Operating mechanism: Spring-charged
Mechanical endurance: 10,000 operations
3.4 Communication (Optional)
Protocol: Modbus RTU (RS485)
Data points: 50+ measured parameters
Communication speed: Up to 19200 bps
4. Standards & Certifications
IEC 60947-2
UL 1066
CE marked
RoHS compliant
5. Typical Applications
Main power distribution boards