SIEMENS circuit breakers

4 companies | 19 products
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residual current circuit breaker / low-voltage / MCB
residual current circuit breaker

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 ...

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SIEMENS Low-voltage – Power distribution
MCB circuit breaker / short-circuit / overload / low-voltage
MCB circuit breaker

... . 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 ...

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SIEMENS Low-voltage – Power distribution
air-operated circuit breaker / short-circuit / overload / low-voltage
air-operated circuit breaker
3WL

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 ...

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SIEMENS Low-voltage – Power distribution
molded case circuit breaker / thermal-magnetic / single-pole / low-voltage
molded case circuit breaker
3VA Series

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 ...

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SIEMENS Low-voltage – Power distribution
live-tank circuit breaker / high-voltage / 3-pole
live-tank circuit breaker
3AP1 series

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, ...

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SIEMENS High-voltage – Power transmission
SF6 gas-insulated circuit breaker / dead-tank / high-voltage / outdoor
SF6 gas-insulated circuit breaker
3AP1

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 ...

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SIEMENS High-voltage – Power transmission
live-tank circuit breaker / short-circuit
live-tank circuit breaker
3AT series

Current: 4,000 A
VAC: 245, 300, 362, 420 V

The 3AT circuit breaker with double-nozzle system is especially suitable for special applications, such as the restrike-free interruption of low inductive and capacitive currents and the interruption ...

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SIEMENS High-voltage – Power transmission
vacuum circuit breaker / SF6 gas-insulated / high-voltage / medium-voltage
vacuum circuit breaker
3AV

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

The new 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 delivered. Siemens has ...

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SIEMENS High-voltage – Power transmission
dead-tank circuit breaker / air-insulated / single-pole / high-voltage
dead-tank circuit breaker
3AP1 DTC series

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

... 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 breakers ...

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SIEMENS High-voltage – Power transmission
SF6 gas-insulated circuit breaker / air-insulated / outdoor
SF6 gas-insulated circuit breaker
3AP1, 3AP2 DCB series

Current: 0 A - 4,000 A
VAC: 145, 420 kV

... in the SF6 gas compartment in order to reduce external environmental influences. The DCB (disconnecting circuit breaker) is used as a circuit breaker and also as a disconnector ...

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SIEMENS High-voltage – Power transmission
vacuum circuit breaker / live-tank / short-circuit / medium-voltage
vacuum circuit breaker
3AF Series

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

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

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SIEMENS Medium-voltage – Power distribution
vacuum circuit breaker / dead-tank / short-circuit / medium-voltage
vacuum circuit breaker
SDV7-AR, SDV7 Series

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 ...

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SIEMENS Medium-voltage – Power distribution
vacuum circuit breaker / medium-voltage / pole-mounted
vacuum circuit breaker
Fusesaver™

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

... weight of the device enables a quick and easy installation and fast commissioning. Self-powered from line current, the circuit breaker has the capability for multi-phase fault clearance for both transient ...

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SIEMENS Medium-voltage – Power distribution
vacuum circuit breaker / medium-voltage / compact / indoor
vacuum circuit breaker
SION Series

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 switchgear. ...

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SIEMENS Medium-voltage – Power distribution
vacuum circuit breaker / medium-voltage / high-current / compact
vacuum circuit breaker
3AK7

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 ...

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SIEMENS Medium-voltage – Power distribution
vacuum circuit breaker / short-circuit / high-power / medium-voltage
vacuum circuit breaker
3AH3

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 ...

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SIEMENS Medium-voltage – Power distribution
vacuum circuit breaker / medium-voltage / fast-switching / compact
vacuum circuit breaker
3AH4

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 ...

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SIEMENS Medium-voltage – Power distribution
circuit breaker for railway applications / vacuum / medium-voltage / single-phase
circuit breaker for railway applications
3AH47

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 ...

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SIEMENS Medium-voltage – Power distribution
short-circuit circuit breaker / DC / modular
short-circuit circuit breaker
FDCL221

Current: 0.25 mA
VDC: 12 V - 33 V

To avoid the breakdown of several stub lines in case of a short-circuit, line separators may be inserted. The line separator is used where several stub lines are connected to the FDnet/C-NET at one point, if no other ...