Establishments primarily engaged in manufacturing current-carrying wiring devices.
- Bus bars (electrical conductors)
- Caps and plugs, attachment: electric
- Connectors and terminals for electrical devices
- Contacts, electrical: except carbon and graphite
- Convenience outlets, electric
- Cord connectors, electric
- Current taps, attachment plug and screw shell types
- Cutouts, switch and fuse
- Dial light sockets, radio
- Fluorescent starters
- Fuse cutouts
- Ground clamps (electric wiring devices)
- Lamp sockets and receptacles (electric wiring devices)
- Lightning arrestors and coils
- Lightning protection equipment
- Plugs, electric
- Rail bonds, electric: for propulsion and signal circuits
- Snap switches, (electric wiring devices)
- Sockets, electric
- Solderless connectors (electric wiring devices)
- Starting switches, fluorescent lamp
- Switch cutouts
- Switches for electric wiring: e.g., snap, tumbler, pressure push-button
- Trolley line material, overhead