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RACO 1816 Rigid Compression Connector - Connectors for Heavy-Wall RMC & Medium-Wall IMC Metal Conduit
RACOConnectors for Heavy-Wall RMC & Medium-Wall IMC Metal Conduit

RACO 1816 Rigid Compression Connector

The RACO Rigid Compression Connector (MPN 1816) is a threaded, male-thread connector for heavy-wall RMC and medium-wall IMC metal conduit. It has a 4 in trade size, 4-1/2 in overall length, and a zinc-plated finish…

SKU 3G-OTH-05488

Brand
RACO
Item
1816 Rigid Compression Connector
Part Number
1816
Category
Connectors for Heavy-Wall RMC & Medium-Wall IMC Metal Conduit
Available to Order
Also known as:1816RACO
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Technical specs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

RACO
Manufacturer Part Number
1816
Finish
Zinc Plated
UNSPSC
39121311
Insulated
No
Standards
CSA Certified
Trade Size
4 in
Thread Size
4"-8
Thread Type
NPS
For Use With
RMC
Overall Width
5-7/8 in
Thread Gender
Male
Overall Length
4-1/2 in
Connection Type
Threaded
For Conduit Type
IMC
Country of Origin
China (subject to change)
Compatible Conduit Type
RMC

Technical Documents

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RACO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RACO Rigid Compression Connector (MPN 1816) is a threaded, male-thread connector for heavy-wall RMC and medium-wall IMC metal conduit. It has a 4 in trade size, 4-1/2 in overall length, and a zinc-plated finish. This CSA Certified connector features a 4"-8 NPS thread and is not insulated.

Frequently Asked Questions

What is the RACO rigid compression connector used for?

The RACO rigid compression connector (MPN 1816) is used to join heavy-wall RMC and medium-wall IMC metal conduit to junction boxes or enclosures. It provides a threaded, male connection with a zinc-plated finish for corrosion resistance. Typical applications include industrial electrical installations, commercial buildings, and infrastructure projects requiring durable conduit terminations.

What are the specifications of the RACO 1816 connector?

The RACO 1816 connector has a 4 in trade size, 4-1/2 in overall length, and a 4"-8 NPS male thread. It is zinc-plated, non-insulated, and CSA Certified. The connector is designed for use with RMC and IMC conduit, with an overall width of 5-7/8 in. It is manufactured by RACO and sourced globally by 3G Electric.

Where to buy the RACO 1816 connector worldwide?

You can order the RACO 1816 rigid compression connector from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact our team for availability and lead time. 3G Electric sources genuine RACO products for industrial applications.

How to install a RACO rigid compression connector?

To install the RACO 1816 connector, thread the male NPS end into a compatible enclosure knockout. Insert the RMC or IMC conduit into the connector body and tighten the compression nut securely using a wrench. Ensure the connection is snug to maintain grounding continuity. Always follow local electrical codes and manufacturer guidelines for proper installation.

Used in

Common applications for RACO
Industrial machinery — RACO liquid-tight connectors (e.g., 3520-3, 3414) terminate flexible metallic conduit at motor and control enclosures.
Water and wastewater treatment — RACO 90-degree liquid-tight connectors (e.g., 3430) route conduit in washdown and outdoor areas requiring liquid-tight terminations.
Commercial electrical raceways — RACO short elbows (e.g., 1/2 in and 3/4 in iron elbows) change direction in IMC and RMC runs per UL 514B.
Panel and equipment wiring — RACO flex screw-in couplings (e.g., 2272) join sections of 1/2 in flexible conduit between machines and junction points.
Raceway transitions — RACO flex-to-EMT couplings (e.g., 1482, 1483) connect flexible conduit to EMT in mixed raceway installations.
Maintenance and repair — RACO conduit fittings and boxes are stocked as spares for replacing damaged terminations and couplings in existing raceways.
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RACO Products

3G Electric supplies RACO connectors for heavy-wall rmc & medium-wall imc metal conduit. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Zinc-plated steel compression connector for terminating heavy-wall RMC and medium-wall IMC metal conduit to boxes. Features male NPS threads (1-1/4"-11-1/2), 1-15/16 in overall length, and a non-insulated design. CSA listed

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