SIC 3625 — Relays and Industrial Controls
Description & Classification
SIC code 3625 representing 'Relays and Industrial Controls' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 335314 - Relay and Industrial Control Manufacturing (via SIC1987:3625→NAICS1997:335314→2002:335314→2007:335314→2012:335314→2017:335314→2022:335314)
Classification Details
| SIC Code | 3625 |
|---|---|
| Industry Title | Relays and Industrial Controls |
| Division | Division D: Manufacturing |
| Major Group | Major Group 36: Electronic and Other Electrical Equipment and Components |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 3625:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 36 Hub — View other legacy industries in this business division.
Related Industries in Major Group 36
Frequently Asked Questions (FAQ)
What industry does SIC code 3625 represent?
SIC 3625 is 'Relays and Industrial Controls', a 4-digit Standard Industrial Classification (SIC) code under Major Group 36: Electronic and Other Electrical Equipment and Components (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 335314 (Relay and Industrial Control Manufacturing).
What is the modern 2022 NAICS mapping for SIC 3625?
SIC code 3625 maps to modern NAICS codes: 335314 - Relay and Industrial Control Manufacturing.