3M 7010398239 Block Fork Vinyl Insulated Terminal

Product Description

The 3M 7010398239 is a vinyl insulated block fork terminal sold in bottles of 100. Also referenced as MVU14-10FBX, this crimp-style connector terminates stranded copper wire to block-style terminal strips and binding posts. The vinyl insulation sleeve provides electrical isolation at the termination point. Electricians and low-voltage technicians use these terminals where a secure, insulated fork connection is required at a screw-type terminal block. The 100-piece bottle format suits panel wiring, control wiring, and other production or service applications where volume connector use is expected.

Block fork terminals in this style are used in residential and light commercial electrical panels, HVAC control wiring, and industrial control enclosures wherever wire must terminate at an open-screw or captive-screw terminal block. The fork (spade) geometry allows the terminal to remain connected even when the screw is partially backed out, making it a preferred choice for terminal strip applications requiring frequent inspection or adjustment.

Key Features

• Vinyl insulated sleeve for electrical isolation at the crimp termination point
• Block fork (spade) geometry seats on open-screw and captive-screw terminal blocks
• Sold in 100-piece bottles for high-volume panel and control wiring work
• Crimp-style installation requires no soldering
• Referenced by internal code MVU14-10FBX for cross-referencing to supplier catalogs

Compatibility

Designed as an OEM-style crimp terminal for use with standard screw-type block terminal strips in electrical panel, HVAC control, and low-voltage wiring applications.

Installation Notes

Installation is performed by licensed electricians or qualified HVAC technicians following applicable NEC requirements. De-energize the circuit completely before terminating or inspecting any wire connection. Use a calibrated ratchet crimping tool rated for vinyl insulated terminals to achieve a proper crimp — an under-crimped terminal can pull free under vibration or load. Do not over-strip the wire conductor; exposed conductor length should match the terminal barrel depth.

Technical Specifications

• Insulation Type: Vinyl
• Terminal Style: Block Fork (Spade)
• Quantity per Bottle: 100
• Weight: 0.01 pounds
• UPC: 00051128590348

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010398239