Driven by technological advancement and evolving safety requirements, a variety of electrical protection devices have been developed. Among them, the shunt trip release, as a highly efficient and reliable protective component, plays an indispensable role in power systems.
The Shunt Trip Release (STR) is a device dedicated to the remote trip control of circuit breakers. When an external signal calls for an immediate circuit disconnection (e.g., activation of a fire alarm system), the device can respond rapidly and actuate the circuit breaker to open, thereby cutting off the power supply, preventing accident escalation and mitigating losses.
Unlike traditional operating mechanisms, the STR receives control commands via an independent auxiliary circuit and uses the magnetic force generated to drive the tripping lever for tripping action, featuring fast response speed and high sensitivity.
Application Scenario Analysis:
● Industrial automated production lines: It ensures production continuity while addressing various potential abnormal conditions, improving the overall efficiency and safety of production lines.
● Commercial building facilities: For public premises such as large shopping malls and office buildings, it enables rapid power cutoff in the event of fires or other disasters, reducing potential risks.
● Data center computer rooms: These venues house a large volume of sensitive information and technical equipment, where even minor malfunctions may lead to severe consequences. The application of STRs helps construct a more robust safety protection system.
PEOPLE has integrated STR interfaces into its full range of Molded Case Circuit Breakers (MCCBs), facilitating the convenient attachment of shunt trip releases (e.g., Model RDM5,RDM8HU,RDM8DC and RDM1). For further details, feel free to contact us at your earliest convenience!
Post time: Jan-22-2026
