Siemens Circuit Breakers

Siemens is a global powerhouse in electrical equipment manufacturing with a comprehensive circuit breaker portfolio. Their product lines include the WL air circuit breakers, 3WL series, SENTRON, and medium voltage vacuum and SF6 breakers. Group CBS provides full sales and service support for all Siemens circuit breakers.

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Product Lines

Voltage Classes

Breaker Types

In Inventory

Low (< 1kV) Circuit Breakers

Air

Current Production

Siemens WL

630A - 6300A

Siemens WL air circuit breakers set the standard for modern low voltage power distribution. Features advanced electronic trip units, comprehensive communication capabilities, and industry-leading performance.

Availability

Available for immediate shipment

The Siemens 3WL series air circuit breakers deliver exceptional reliability and performance for demanding applications. Fully compatible with Siemens building automation and power management systems.

Availability

Available for immediate shipment or typically sourced within 3-5 business days

Applications

Smart buildingsIndustrial automationData centers

Services Available

Testing & CertificationSmart Grid IntegrationField Services

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MCCB

Current Production

Siemens SENTRON

16A - 1600A

Siemens SENTRON molded case circuit breakers provide comprehensive protection for commercial and industrial applications. The 3VA series offers high performance in a compact design.

Availability

Available as new or refurbished

Applications

Commercial buildingsIndustrial feedersMotor protection

Services Available

Testing & CertificationRefurbishmentObsolete Parts Sourcing

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Medium (1-38kV) Circuit Breakers

Vacuum

Legacy

Siemens GMSG

1200A - 3000A

Siemens GMSG medium voltage vacuum circuit breakers deliver reliable switching performance for utility and industrial substations. Based on proven vacuum interrupter technology.