The document describes the application of Part No. 314, which can be used to electrically connect, insulate, and provide a moisture resistant seal. It is suitable for 22-14 AWG solid or stranded, tinned or untinned (0.5-1.5 mm2) copper conductors. It is designed for use with common thermoplastic insulated wires such as T, TF, TFF, TFN, TFFN, AWM, TEW, SAE-GPT, with a maximum insulation diameter of 0.150 inches (3.8 mm). The maximum recommended current for general purpose applications ranges from 3 to 15 AMPS depending on the wire gauge.
The 3M 314 connector provides a self‑stripping, moisture‑resistant solution for joining two or three wire ends. It supports 22‑14 AWG (0.5‑1.5 mm²) solid or stranded copper conductors and offers a flame‑retardant nylon insulator with a mineral‑oil‑based EG‑3 grease seal.
Installation is performed with the 3M Crimping Tool No. E‑9BM or slip‑joint pliers, and the connector is UL listed (Standard 486C) and CSA certified for up to 600 V (1000 V for building wire) with a maximum operating temperature of 105 °C. Warranty and liability statements are included on the last page of the sheet.
| Wire range | 22‑14 AWG (0.5‑1.5 mm²) solid or stranded copper conductors |
|---|---|
| Maximum recommended current | 22 AWG ‑ 3 A, 20 AWG ‑ 5 A, 18 AWG ‑ 7 A, 16 AWG ‑ 10 A, 14 AWG ‑ 15 A |
| Maximum insulation diameter | 0.150 inches (3.8 mm) |
| Operating temperature | 105 °C |
| Voltage rating | 600 V (1000 V for building wire) |
| Recommended installation tool | 3M Crimping Tool No. E‑9BM |
The connector accepts 22‑14 AWG (0.5‑1.5 mm²) solid or stranded copper conductors, either tinned or untinned.
A 14 AWG wire can carry up to 15 amps through the connector.
Use the 3M Crimping Tool No. E‑9BM or slip‑joint pliers to install the connector.
Yes, it is UL listed and tested per UL Standard 486C.