Merit Brass TRS500RID 500A 600V Time-delay Fuse

Product Description

The MERIT BRASS TRS500RID is a 500-amp, 600-volt time-delay fuse designed for overcurrent protection in industrial and commercial electrical systems. Time-delay fuses allow brief inrush currents — such as those produced during motor startup — to pass without nuisance tripping, while still providing fast, reliable response to sustained fault conditions. At 500 amps and 600 volts, this fuse is rated for heavy-duty branch circuit and feeder protection. It is installed by licensed electricians working on industrial panels, motor control centers, and large commercial distribution equipment.

This fuse is suited for applications requiring high-capacity overcurrent protection with time-delay characteristics. Typical installations include motor branch circuits, HVAC equipment feeders, and industrial machinery where startup inrush currents exceed normal operating amperage. The time-delay action reduces unnecessary shutdowns during normal equipment cycling while maintaining code-required fault protection under sustained overload or short-circuit conditions.

Key Features

• 500-amp continuous current rating for heavy-duty circuit protection
• 600-volt AC rating suitable for commercial and industrial distribution systems
• Time-delay design tolerates motor inrush and startup surges without nuisance tripping
• Provides reliable response to sustained overcurrent and short-circuit faults
• Sized for branch circuit and feeder applications in motor control and distribution panels

Compatibility

Designed as an OEM-style replacement fuse for 500-amp, 600-volt time-delay fuse holders used in commercial and industrial electrical distribution and motor control applications.

Installation Notes

Installation must be performed by a qualified, licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit at the upstream disconnect before removing or installing any fuse. Verify that the fuse holder is rated for 500 amps and 600 volts before installation, and confirm the replacement fuse class matches the original equipment specification.

Technical Specifications

• Amperage: 500 amps
• Voltage: 600 volts
• Fuse Type: Time-Delay
• UPC: 78200141529

Standard Information

• Brand: MERIT BRASS
• Manufacturer Part Number: TRS500RID