| Category | Manufacturers |

| Curcuit Breakers | GE | Siemens |
| Disconnect switches | GE | Siemens |
| Load Centers | GE | Siemens |
| Panel board & Switch Boxes | GE | Siemens |
| Safety Switches | GE | Siemens |
| Fuses | Bussmann | Ferraz-Shawmut |
| Fuse Blocks | Bussmann | Ferraz-Shawmut |
| Fuse Link Holders | S&C | |
| High & Low Voltage Fuses | S&C | Bussmann |
| Primary Fused Hgh Voltage Cutouts | S&C Cooper |
ABB |
| Transformer Cost Coil | ABB | Olsun |
| Transformed Dry | GE Acme |
Siemens |
| Transformer Low Voltage & Lighting | GE Acme |
Siemens |
| Transformer Medium & Large | GE Cooper |
ABB |
| Transformer Pad/Pole Mount | GE Cooper |
ABB |
| Voltage Regulators | GE | Cooper |
| Instrument Transformers | GE | |
