Eaton mdl-7-r Glass Tube Fuse 7A 250V Time Delay

Product Description

The EATON mdl-7-r is a time-delay glass tube fuse rated at 7 amps and 250 volts AC. It measures 0.25 inches in diameter by 1.25 inches in length, fitting the standard 1/4 inches x 1-1/4 inches fuse form factor. The glass tube body and nickel-plated brass endcaps provide reliable overcurrent protection in low-voltage control circuits, instrumentation panels, and light-duty electrical equipment. Electricians and electronics technicians install this fuse as a direct plug-in replacement in fuseholder blocks and panel-mounted fuse clips wherever a time-delay MDL-series fuse is specified.

The mdl-7-r is suited for residential and light commercial applications where a slow-blow fuse is required to handle brief inrush currents without nuisance tripping. Common install scenarios include motor control circuits, transformer secondary protection, HVAC control boards, and instrumentation equipment. The time-delay characteristic allows momentary overloads to pass while still protecting against sustained fault conditions. This fuse is appropriate for use in equipment operating on 125-volt or 250-volt AC branch circuits within its rated interrupting capacity.

Key Features

• Time-delay (slow-blow) action handles inrush current without nuisance opening
• Rated 7 amps at 250 volts AC
• Interrupting rating of 200 AIC at 250 VAC and 10,000 AIC at 125 VAC
• Standard 0.25 inches x 1.25 inches glass tube form factor for broad fuseholder compatibility
• Nickel-plated brass endcaps resist corrosion and ensure low-resistance contact

Compatibility

Designed as a direct replacement for MDL-series time-delay glass tube fuses in the standard 1/4 inches x 1-1/4 inches form factor. Also referenced as Cooper Bussmann mdl-7-r and Eaton mdl-7-r.

Installation Notes

This fuse is installed by qualified electricians or technicians servicing low-voltage control or instrumentation circuits. Always de-energize and lock out the circuit before removing or installing a fuse. Verify that the replacement fuse amperage, voltage rating, and time-delay characteristic match the original equipment specification before installation. Do not substitute a fast-acting fuse where a time-delay fuse is specified by the equipment manufacturer.

Technical Specifications

• Amperage Rating: 7 amps
• Voltage Rating: 250 volts AC
• Fuse Type: Time Delay (Slow Blow)
• Interrupting Rating: 200 AIC at 250 VAC
• Interrupting Rating: 10,000 AIC at 125 VAC
• Body Diameter: 0.25 inches
• Body Length: 1.25 inches
• Body Material: Glass tube with nickel-plated brass endcaps

Standard Information

• Brand: EATON
• Manufacturer Part Number: mdl-7-r