3AH3819-7 - SIEMENS - Products - Easy Semiconductor Technology (Hong Kong) Limited

3AH3819-7

The Siemens 3AH3819-7 is a medium-voltage vacuum circuit breaker designed for indoor applications in power distribution systems. Part of the 3AH series, it provides reliable switching and protection for voltages up to 24kV.

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TEL：400-887-3214
Mail：jilineasyyi@outlook.com
Q Q：615739355

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Key Specifications
Parameter Specification
Rated Voltage 12/17.5/24 kV
Rated Current 3150A
Short-Circuit Current 40 kA (IEC), 50 kA (ANSI)
Breaking Capacity 40 kA (at 24 kV)
Contact Material CuCr (copper-chromium)
Mechanical Life 10,000 operations
Electrical Life 100 full-load interruptions
Operating Mechanism Spring-stored energy
Control Voltage 110-250V DC/AC
Weight ~150 kg
Standards IEC 62271-1, ANSI C37.04
Technical Features
Vacuum interrupter technology for arc-free switching

Motorized spring charging with manual override

Integrated protection relays (optional)

Padlockable disconnect position

IP4X protection rating (front)

Low maintenance design

Typical Applications
Primary power distribution

Transformer protection

Industrial plant switchgear

Power generation systems

Mining and oil/gas installations