Diversitech 7-crnr25 Time Delay Fuse 25A 250V Dual Element

Product Description

The DIVERSITECH 7-crnr25 is a dual-element, time delay fuse rated at 25 amps and 250 volts, designed for use in heating and air conditioning equipment. Dual-element construction provides both time delay protection for temporary overcurrent conditions and continuous motor running protection. The time delay characteristic allows harmless inrush currents to pass without nuisance tripping, reducing unnecessary service calls. UL Class RK5 listed to Standard for Safety 198E, the fuse carries an interrupting rating of 200,000 amps RMS AC, making it suitable for current-limiting applications in residential and light commercial HVAC systems.

This fuse is used in ducted HVAC systems where motor and compressor protection is required. It is commonly installed in disconnect boxes, fused load centers, and equipment service entrance points on split systems, package units, and air handlers. Licensed HVAC technicians and electricians install this fuse as a direct replacement in equipment requiring a Class RK5 current-limiting fuse at the 25-amp, 250-volt rating. Sold individually, one fuse per unit.

Key Features

• Dual-element design provides time delay for motor inrush current without nuisance tripping
• Rated 25 amps at 250 volts for compatibility with common HVAC disconnect applications
• UL Class RK5 listed, current-limiting construction with 200,000 amps RMS AC interrupting rating
• Eliminates unnecessary maintenance caused by harmless temporary overloads
• Sold per fuse for single-unit replacement flexibility

Compatibility

Designed as an OEM-style replacement Class RK5 time delay fuse for ducted residential and light commercial HVAC equipment requiring a 25-amp, 250-volt current-limiting fuse in a standard fuse holder or disconnect block.

Installation Notes

Installation should be performed by a licensed HVAC technician or electrician. Disconnect and lock out all power to the equipment before removing or installing any fuse. Verify the replacement fuse matches the amperage and voltage rating shown on the equipment nameplate. Follow applicable NEC requirements for fuse sizing and disconnect installation in HVAC applications.

Technical Specifications

• Product Type: Time Delay Fuse
• Fuse Class: UL Class RK5
• Voltage Rating: 250 volts
• Amperage Rating: 25 amps
• Interrupting Rating: 200,000 amps RMS AC
• Element Type: Dual Element
• Application: Ducted HVAC
• UL Standard: Standard for Safety 198E

Standard Information

• Brand: DIVERSITECH
• Manufacturer Part Number: 7-crnr25