PSIC PSICph
Mf Section C Manufacturing
PSIC 2019 Navigation-first hub

Class 2733 - Manufacture of wiring devices

PSIC Class 2733 covers Manufacture of wiring devices. Current child subclasses include Manufacture of Wiring Devices. This four-digit layer is useful when comparing neighboring activities before landing on the...

Level Class
Hierarchy depth 4/5
Children 1
Last verified 2026-05-12
About this level

Practical summary

Class 2733 sits in the PSIC 2019 hierarchy under C Manufacturing > 27 Manufacture of Electrical Equipment > 273 Manufacture of wiring and wiring devices. This class usually fans out into more specific subclasses such as Manufacture of Wiring Devices. It is the level people use when they already know the activity family but still need the exact five-digit match.

Administrative context

Where this code is used

This class is used when a business can already narrow the activity family and only needs to compare the final subclasses such as Manufacture of Wiring Devices. It is the level most often checked before a five-digit decision is finalized.

Selection note

How to choose it

Use this class to choose between its final subclasses such as Manufacture of Wiring Devices. If two options look close, compare the exact activity, the outputs and the way the business actually earns revenue.

Official note

Source-backed description

This class includes the manufacture of current-carrying and non current-carrying wiring devices for electrical circuits regardless of material. This class includes: Manufacture of bus bars, electrical conductors (except switchgear-type) Manufacture of GFCI (ground fault circuit interrupters) Manufacture of lamp holders Manufacture of lightning arrestors and coils Manufacture of switches for electrical wiring (e.g. pressure, pushbutton, snap, tumbler switches) Manufacture of electrical outlets and sockets Manufacture of boxes for electrical wiring (e.g. junction outlet, switch boxes) Manufacture of electrical conduit and fitting Manufacture of transmission pole and line hardware Manufacture of plastic non current - carrying wiring devices including plastic junction boxes, face plates, and similar, plastic pole line fittings This class excludes: Manufacture of ceramic insulators; see 2393; Manufacture of electronic component-type connectors sockets, and switches, see 261.

FAQ

What does PSIC Class 2733 cover?

PSIC Class 2733 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Manufacture of wiring devices.

How do I compare Class 2733 with the sibling classes?

Read the neighboring classes and compare the exact wording of the child subclasses. Nearby options include 2731 Manufacture of fiber optic cables and 2732 Manufacture of other Electronic and Electric Wires and Cables.

Why does Class 2733 matter for a filing decision?

It is usually the last broad checkpoint before the five-digit subclass choice, so it is the right place to catch near-miss classifications.