Mersen TRM1-1/8 Midget Time-delay Fuse 1-1/8A 250V

Product Description

The MERSEN TRM1-1/8 is a midget time-delay fuse rated at 1-1/8 amps and 250 volts. It is designed for overcurrent protection in low-amperage control circuits, instrumentation panels, and small motor loads where nuisance tripping from inrush current is a concern. The time-delay characteristic allows the fuse to absorb brief current surges without opening, while still responding quickly to sustained overloads or short circuits. Licensed electricians and HVAC technicians install this type of fuse in control panels, transformers, and HVAC equipment with low-voltage control circuits. Sold in packs of 10.

This fuse is suited for residential and light commercial applications where midget fuse holders are specified. Common installation locations include HVAC control boards, small appliance branch circuits, and electronic equipment requiring class CC or midget-type fuse protection. The compact form factor fits standard 13/32-inch by 1-1/2-inch midget fuse clips and blocks. Its 250-volt rating makes it appropriate for single-phase control circuit protection across a wide range of equipment types.

Key Features

• Time-delay design tolerates motor or transformer inrush current without nuisance opening
• 1-1/8 amp rating for precise low-amperage circuit protection
• 250-volt rating suitable for single-phase control and instrumentation circuits
• Midget form factor fits standard midget fuse holders and disconnect blocks
• Sold in a 10-pack for service van stocking and panel restocking

Compatibility

Designed as an OEM-style replacement midget time-delay fuse for use in standard midget fuse holders rated for 250 volts and 1-1/8 amps or greater.

Installation Notes

Installation should be performed by a qualified electrician or licensed HVAC technician in accordance with applicable NEC requirements. De-energize and lockout the circuit before removing or inserting any fuse. Confirm the replacement fuse matches the amperage and voltage rating of the original. Never install a fuse with a higher amperage rating than the circuit is designed to handle.

Technical Specifications

• Amperage Rating: 1-1/8 amps
• Voltage Rating: 250 volts
• Fuse Type: Midget Time-Delay
• Package Quantity: 10 per pack
• Dimensions (L x W x H): 1.620 inches x 0.880 inches x 2.120 inches
• Weight: 0.130 pounds
• UPC: 78200174319

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: TRM1-1/8