Overview
The Cooper Lighting ST Series MWS Starter Fitting (Model 27ST12/2G) is the foundation component of the Modular Wiring System (MWS), a low-cost branch circuit wiring solution for lighting and power. The Starter Fitting converts a conventional hardwired junction box into a MWS connection point, enabling downstream fixture cables, extenders, and power distribution modules to plug together in a fraction of the time required by traditional hardwiring. Built with a galvanized steel exterior and rated for 20A at 277V ac, the 27ST12/2G is designed for commercial, industrial, and institutional environments where installation speed and NEC compliance are critical.
Key Features
- UL Listed under Standard 183 for make or break under load
- Meets requirements of Article 604 of the National Electrical Code (NEC)
- Rated at 20 amperes with full-size ground wire
- Copper conductors with THHN insulation rated at 90°C
- Galvanized steel exterior with integral keying for voltage and amperage identification
- Unique double-blade contact design ensures proper mating and prevents pushback or pullout
- Includes threaded locknut connector and 6-inch pre-stripped leads on fitting ends
- Shipped with one dust cover attached; all unused outlets require a MWS dust cover
Specifications
| Manufacturer | Cooper Lighting |
|---|---|
| Model Number | 27ST12/2G |
| Graybar SKU | 26081151 |
| UPC | 62269727760 |
| Product Type | Starter Fitting |
| Series | ST Series (MWS) |
| Voltage Rating | 277V ac |
| Amperage Rating | 20A |
| Wire Gauge | 12 AWG |
| Conductors | 2 Conductors Plus Ground |
| Insulation | THHN, rated 90°C |
| Conductor Material | Copper |
| Exterior Material | Galvanized Steel |
| Finish | Raw |
| Dimensions | 28.11 L x 10.12 H x 9.41 W in. |
| Unit of Measure | Each |
| Min. Order Qty | 1 |
| Country of Origin | Unknown |
| UNSPSC | 39122235 |
| Standards | UL Standard 183; NEC Article 604 |
| Use With | Modular Wiring System (MWS) |
| Compatible Applications | Office, Education, Healthcare, Hospitality, Retail, Industrial, Manufacturing, Sports Venues |

