Skip to main content
This page is displayed using automated translation. View in English instead?

Why Air circuit breaker SENTRON 3WA?

Ever stricter standards and increasingly automated infrastructure require fail-safe power distribution. The SENTRON 3WA air circuit breaker lets you simply achieve what you need. Available in various sizes up to 6300A with digital protection and communication-capable solutions, SENTRON 3WA delivers maximum operational safety across industrial plants, building technology, and critical infrastructure applications. Certified to IEC 60947-2 and UL 1066, these breakers protect against overload, short circuits, and ground faults while offering future-proof digitalization, sustainability through the Siemens EcoTech label, and superior energy and cost efficiency.

Key benefits

Enhance efficiency

SENTRON 3WA air circuit breakers deliver enhanced protective functions and high selectivity for maximum system availability. Robust mechanics and proven quality handle demanding applications.

Minimize risk

Coordinated selectivity between SENTRON ACBs and downstream devices ensures total protection during overload and short circuit. Enhanced functions detect directional energy changes and ground faults.

Increase service life

System tests confirm robust mechanics, automated diagnostics, and web-based upgrades extend circuit breaker service life potentially to 30 years with proper maintenance, significantly reducing system life-cycle costs.

Featured capabilities