A hydraulic magnetic circuit breaker differs from a thermal-magnetic circuit breaker in several key ways:
Operating Principle
Hydraulic magnetic circuit breakers use a combination of magnetic force and hydraulic damping to detect overcurrent, while thermal-magnetic circuit breakers use both a bimetallic strip (thermal) and an electromagnet (magnetic) to detect faults.
Temperature Sensitivity
Hydraulic magnetic breakers are unaffected by ambient temperature changes, providing consistent performance regardless of the surrounding environment. In contrast, thermal-magnetic breakers can be influenced by temperature variations, which can affect their tripping characteristics.
Response Time
Hydraulic magnetic breakers offer precise and reliable protection with adjustable time delays, making them suitable for applications with varying load conditions. Thermal-magnetic breakers provide both instantaneous and time-delayed protection, with the thermal component introducing a delay based on heat buildup.
Resetting
Both types can be reset after tripping, but hydraulic magnetic breakers can be re-closed immediately without needing a cooling-down period.
