3M MNHU14-250DFIX Female Disconnect Terminal 14-16 Awg

Product Description

The 3M MNHU14-250DFIX is a straight-type female disconnect terminal designed for reliable electrical connections in building wire, sign, and fixture applications. It accepts conductors from 16 AWG minimum to 14 AWG maximum and carries a voltage rating of 600 volts for building wire and 1000 volts for signs and fixtures. The terminal features a brass body with corrosion-resistant tin plating and is fully insulated with adhesive-lined polyolefin heat-shrink nylon. When crimped and heat-shrunk, the insulation forms a seal resistant to water and salt. This terminal is installed by licensed electricians and electrical contractors working on low-voltage wiring, control circuits, and panel connections.

The MNHU14-250DFIX is suited for residential and commercial electrical installations where a secure, insulated disconnect is required at wire termination points. The straight tab style accepts a 0.25-inch wide by 0.032-inch thick disconnect tab. The blue color coding identifies 14-16 AWG conductor range at a glance, consistent with standard color-coded terminal conventions. It is sold in a standard package of 25 terminals per carton, making it practical for service trucks and job-site inventory. Applications include control panel wiring, fixture connections, sign installations, and general low-voltage circuit terminations.

Key Features

• Brass terminal body with tin plating for good conductivity and corrosion resistance
• Adhesive-lined polyolefin heat-shrink nylon insulation seals against water and salt when crimped and shrunk
• Butted seam barrel with dents and rolled edges for excellent holding force on the conductor
• Voltage rated at 600 volts for building wire and 1000 volts for signs and fixtures
• Temperature rated from -40 to 221 degrees F
• UL and CSA approved
• Blue color coding identifies 14-16 AWG range; sold 25 per carton

Compatibility

Designed as an OEM-style replacement and standard-fit terminal for straight-tab female disconnect applications accepting 14 to 16 AWG conductors with a 0.25-inch tab width.

Installation Notes

Installation is typically performed by a licensed electrician. De-energize and lock out the circuit before terminating any conductors. Use a calibrated ratcheting crimping tool appropriate for heat-shrink insulated terminals to achieve a proper crimp; follow up with a heat gun to shrink and seal the insulation fully around the conductor. Do not use open flame to activate the heat-shrink sleeve.

Technical Specifications

• Type: Straight Female Disconnect
• Tab Size: 0.25 inches wide x 0.032 inches thick
• Minimum Conductor Size: 16 AWG
• Maximum Conductor Size: 14 AWG
• Voltage Rating: 600 volts (Building Wire), 1000 volts (Signs, Fixtures)
• Temperature Rating: -40 to 221 degrees F
• Insulation Type: Heat Shrink Nylon, Fully Insulated
• Barrel Style: Butted Seam
• Overall Size: 0.23 inches diameter x 1.2 inches long x 0.37 inches wide
• Barrel Size: 0.08 inches ID x 0.25 inches long
• Terminal Material: Brass with Tin Plating
• Color: Blue
• Standard Package: 25 per Carton
• Package Weight: 0.8 pounds
• Package Dimensions: 9.375 inches long x 3.625 inches wide x 5.125 inches high
• Approvals: UL, CSA
• Country of Origin: US

Standard Information

• Brand: 3M
• Manufacturer Part Number: MNHU14-250DFIX