SIEMENS voltage circuit breakers

Current: 630 A - 6,300 A
VAC: 0 V - 1,000 V

... electricity. 3WL air circuit breakers reliably protect electrical installations against damage or fire as a result of short circuits, ground faults, or overload faults. Heart of the ...

RC units can be fitted to miniature circuit breakers (MCBs) as per DIN EN 61009-1 (VDE 0664-20). Used in combination with a MCB, they provide the same functionality as an RCBO. The benefits are a high ...

... . In the event of overload or a short-circuit, miniature circuit breakers (MCBs) safely cut the connected circuit and thus reliably protect electrical systems and devices ...

Current: 15 A - 1,000 A

... industrial applications, buildings, or infrastructure: As a modular, highly variable system, the range of 3VA molded case circuit breakers provides thoroughly reliable operator and plant protection while ...

Current: 0 A - 3,150 A
VAC: 72.5 V - 145 V

... generation of high-voltage circuit breakers is based on over 40 years of experience in the production of medium-voltage vacuum interrupters and over 5.5 million units ...

Current: 2,500, 4,000 A
VAC: 72.5 kV - 800 kV

Overview of our live tank circuit breakers We offer our live tank circuit breakers for applications from 72.5 kV to 800 kV, up to 80 kA. Depending on the requirement, ...

Current: 0 A - 3,150 A
VAC: 72.5 kV - 123 kV

Overview of our dead tank circuit breakers We deliver dead tank circuit breakers for applications from 72.5 kV to 550 kV with a service life of up to 50 years. Our DT ...

Current: 0 A - 4,000 A
VAC: 145, 245 kV

... Based on our modular design, the core components are adopted from our high-voltage circuit breakers, disconnectors and the GIS product family. Our dead tank compact circuit ...

Current: 0 A - 31,500 A
VAC: 0 kV - 40.5 kV

... chosen Siemens medium-voltage vacuum circuit-breakers for over 40 years, with over 350,000 vacuum circuit-breakers in service to date. Siemens puts ...

Current: 20,000, 25,000, 31,500, 40,000 A
VAC: 15.7, 27.6, 38 kV

... The magnetic actuator employs an electronic controller to provide power to close the circuit breaker, as well as to supply the energy to open the circuit breaker. The ...

Current: 40, 100, 200 A
VAC: 15.5 kV - 27 kV

... minimising operating costs of overhead MV networks. The exceptional small footprint and light weight of the device enables a quick and easy installation and fast commissioning. Self-powered from line current, the circuit ...

Current: 630 A - 40,000 A
VAC: 7.2, 12, 17.5, 24 kV

... infrastructure SION vacuum circuit breakers control all standard switching tasks in medium-voltage distribution systems and are suited for installation in all air-insulated medium-voltage ...

Current: 1,250, 2,000, 3,150, 4,000 A
VAC: 7.2, 12, 15, 17.5 kV

Vacuum circuit breakers in the 3AK7 series are available in versions from 7.2 to 17.5 kV. The vacuum circuit breakers are very compact, with a distance between pole centers ...

Current: 1,250 A - 8,000 A
VAC: 7.2 kV - 40.5 kV

The powerful 3AH3 vacuum circuit breakers were the first 63- and 72-kA vacuum circuit breakers on the market tested in accordance with IEEE C37.013 for load currents ...

Current: 1,250 A - 4,000 A
VAC: 12 kV - 40.5 kV

... sequences per day. This requires sturdy, powerful vacuum circuit breakers that can manage these tough demands – like the vacuum circuit breakers in our 3AH4 series. The ...

Current: 1,250 A - 40,000 A
VAC: 17.5, 27.5 kV

The electricity supply to railway systems calls for circuit breakers with special characteristics. Not only are single or two-pole circuit breakers usually needed for ...