3M 051128-54455 Twist-on Wire Connector Winged 600V

Product Description

The 3M 051128-54455 is a flame-retardant twist-on wire connector designed to electrically join two or more conductor ends in a pigtail configuration and insulate the completed connection. Built with a live-action square wire steel spring, it maintains consistent contact pressure on the conductors after installation. The winged shell gives technicians a secure grip during makeup, reducing hand fatigue on high-volume jobs. Rated for 600 VAC and up to 221 degrees F, this connector meets UL 486C and CSA C22.2 No. 188 standards. The tan and red color coding follows common field conventions and is recognized as a direct replacement for standard yellow, tan, and red connectors across most residential wiring applications.

This connector is targeted at residential electrical work and is well suited for device pigtailing, panel wiring, junction box connections, and general branch-circuit terminations. It was specifically developed for residential market applications where a single connector needs to cover the range of jobs previously handled by multiple connector sizes. Licensed electricians and residential wiremen will find the winged shell useful for working in tight boxes and congested junction points where a standard smooth-shell connector is harder to torque by hand.

Key Features

• Flame-retardant shell construction for added safety in enclosed boxes and junction points
• Live-action square wire steel spring maintains positive contact pressure on conductor ends
• Winged shell design improves grip and reduces hand fatigue during high-volume installations
• 600 VAC voltage rating covers standard residential branch-circuit applications
• Rated to 221 degrees F for use in higher-temperature environments
• RoHS compliant and certified to UL 486C, CSA C22.2 No. 188, and CE standards

Compatibility

Designed as a replacement for yellow, tan, and red twist-on wire connectors across the majority of residential field applications, consolidating multiple connector sizes into one part.

Installation Notes

Installation is performed by licensed electricians in accordance with NEC requirements. De-energize the circuit at the breaker and verify absence of voltage with a meter before making or breaking any connections. Strip conductors to the connector manufacturer's recommended strip length, insert into the spring, and rotate clockwise until the spring seats firmly with no bare copper visible below the shell. Do not over-torque or force conductors that exceed the connector's wire range.

Technical Specifications

• Voltage Rating: 600 VAC
• Temperature Rating: 221 degrees F
• Shell Style: Winged
• Spring Type: Live-Action/Square Wire
• Spring Material: Steel
• Color: Tan/Red
• Standards and Approvals: UL 486C (UL File No. E23438), CSA C22.2 No. 188 (File No. M1983), CE Certified, RoHS Compliant (2011/65/EU)

Standard Information

• Brand: 3M
• Manufacturer Part Number: 051128-54455