The Arlington 8630 is an EMT fitting built to join, terminate, or anchor EMT conduit runs reliably. Specified by electricians, commercial contractors and stocked in Canada by Maple Electric Supply for fast contractor and project delivery.
Manufacturer resources: Browse Arlington's official Flex, AC & MC Fittings catalog ↗ for full technical specifications, dimensional drawings, and installation guides.
TL;DR
-
What it is: Arlington 8630: EMT fitting, 1" trade size.
-
Best for: commercial conduit runs, above-ceiling tray-fed feeders.
-
Why this one: Concrete-tight and rain-tight ratings available across the full trade-size range.
Quick Specs
Quick reference for the 8630: the points contractors and purchasers check first when matching a part to a project drawing or a takeoff line. Full installation and listing detail lives on the Arlington spec sheet.
-
Arlington part number: 8630
-
Family: EMT Fittings
-
Trade size: 1"
Best For
Common scopes where the Arlington 8630 (and the rest of the EMT Fittings line) earns its place on the spec. It isn't an exhaustive list, but it's a fast read on whether this is the right family for your application before you go deeper on the cut sheet.
- Commercial conduit runs
- Above-ceiling tray-fed feeders
- Exposed industrial conduit
- Concrete-encased conduit feeds
Why Contractors Choose It
- Listed for the applications stated on the Arlington spec sheet, with no jurisdictional surprises at inspection.
- Listed for the connection type, raceway diameter, and environment the box requires: set-screw, compression, and concrete-tight variants all live in the same Arlington line.
- Distributed by a Canadian-owned stocking dealer. Maple Electric Supply ships from Ontario, so the SKU lands on site without cross-border duty calcs or week-long customs holds.
- Backed by Arlington's North American manufacturing footprint: the same part number you've already spec'd on prior jobs, with the same listings.
- Replacement and add-on availability runs through a Canadian supply channel, so short-notice job sites can pull additional units without re-engineering the order.
Choose the Right Model
Compare with sibling Arlington EMT fittings:
See: Arlington EMT Fittings collection
Installation Notes
- EMT couplings and connectors must be listed for the application per CEC 12-1400. Concrete-tight or rain-tight fittings required where exposed.
-
Primary code reference: CEC Section 12-1400 (EMT); CEC 12-1402 (EMT Couplings/Connectors).
- Verify the Arlington listing on the current spec sheet matches your local AHJ's adopted code edition, since provincial amendments to the CEC can override the federal base text.
- Confirm trade size, mounting style, and accessory pairing against the project drawings before ordering in volume. Maple Electric Supply's counter staff can pull the cut sheet on request.
- Installation must be completed by a qualified electrician where required by local code; the homeowner / unlicensed scope is narrower in Ontario than in several US jurisdictions.
Common Mistakes to Avoid
Patterns we see on returns, callbacks, and inspection re-visits around the EMT Fittings line. Most of them are small and avoidable when the right SKU and accessory get pulled at the counter.
- Using set-screw in concrete (needs concrete-tight)
- Using indoor-rated in wet locations
- Skipping the bushing on the conductor side
- Forgetting the bonding lockring for grounding through the fitting
Frequently Bought With
- Arlington EMT (couplings/connectors)
- Arlington Conduit Bodies
- Arlington Grounding
Sourcing in Ontario
The Arlington 8630 is part of Maple Electric Supply's stocking program. Orders for in-stock SKUs ship same-day from our Ontario warehouse. Larger project quantities can be quoted with contractor pricing; we pull from Arlington's North American inventory pool directly, not through a US re-shipper, so the EMT fitting reaches the job without customs paperwork on your end.
Frequently Asked Questions
-
Is the Arlington 8630 UL and/or CSA listed?
Arlington components are listed for the applications stated by the manufacturer. Always verify the listing on the product's spec sheet against your jurisdiction's adopted code.
-
Is this part made in the USA?
Arlington Industries manufactures the bulk of its catalog in the United States. Confirm origin on the current spec sheet if it matters for your project.
-
What EMT trade size does this fit?
The 8630 is a 1" trade-size fitting.
-
Set-screw, compression, or push-on style?
Varies by configuration: check the 8630 datasheet for the exact dimensions, ratings, and accessory list before ordering in volume. Arlington updates spec sheets periodically, so spec the live version from the manufacturer's site for the current job.
-
Concrete-tight, rain-tight, or both?
The 8630 datasheet is the authoritative source on this. Arlington publishes torque specs, listed conductor ranges, and accepted accessories per part number, and those values shift between revisions even when the SKU stays the same.
-
Steel or zinc die-cast body?
Confirm against the published Arlington 8630 cut sheet; values shift between configurations even inside the same family. Maple Electric Supply can email a current copy on request and flag any recent revisions that changed listed ratings.
-
Listed for grounding/bonding through the fitting?
Maple Electric Supply can pull the 8630 spec sheet on request, since answers here depend on the specific configuration and the listed conditions of use. Anything that affects code compliance should come straight from the manufacturer's current published documentation.
Buy Arlington EMT fittings from a Canadian distributor. Maple Electric Supply ships from Ontario stock; technical support included.
