Siemens 3VA4140-6ED24-0AA0 Bolt-On Circuit Breaker

Siemens 3VA4140-6ED24-0AA0 is a bolt-on circuit breaker from the 3VA4 family, designed for industrial panels and switchgear and rated for 40 A at 480 V. This unit is configured for two-pole (2P) operation in a single-phase (1PH) arrangement and is built on the 125H frame height for compatibility with Siemens bolt-on mounting schemes. The device is intended for direct installation into compatible Siemens enclosures that accept 3VA4 bolt-on breakers, delivering reliable overcurrent protection for branch circuits against overloads and short circuits in 480 V single-phase distributions. Its compact frame enables secure mounting in space-constrained panels, while standard termination practices support straightforward replacement and serviceability. Typical applications include feeder protection in distribution panels, control circuits in industrial automation, and other 480 V single-phase environments where 40 A protection is appropriate in a bolt-on configuration.