ABB S5H400MWS4W is a three-pole welding circuit breaker from the S5H Isomax line, designed to protect welding power circuits and connected loads. Rated In 400 A with a short-circuit current rating Icu of 65 kA at 415 V, this MCP variant integrates motor-control-protection features to safeguard motors and feeders in demanding welding environments. Ideal as a main or branch protection device on welding machinery, the S5H400MWS4W combines ABB reliability with rugged construction suitable for industrial applications.
