Bussmann ECSR30 Class RK5 Time Delay Fuse 30 Amp 600V

The Bussmann ECSR30 is a UL Class RK5 dual-element time delay fuse designed for reliable overcurrent protection in industrial and commercial electrical systems. This fuse provides superior protection against both short circuits and overload conditions, making it ideal for motor circuits, transformers, and other inductive loads.

Key Specifications:

• Current Rating: 30 Amperes
• Voltage Rating: 600 Volts AC
• Class: RK5 Dual Element Time Delay
• UL Listed for safety and performance
• Interrupting Rating: 200,000 amperes RMS symmetrical
• Time delay characteristics prevent nuisance tripping during motor startup and other temporary surge conditions

Class RK5 fuses feature a rejection-style design that prevents replacement with lower interrupting capacity fuses, ensuring continued system protection. The dual-element construction combines a spring-loaded short circuit element with a thermal overload element, providing precise coordination with upstream and downstream protective devices. These fuses are dimensionally compatible with Class H fuseholders but offer significantly higher interrupting capacity and better performance characteristics.