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3G Electric
RACO 1503 Three-Piece Threaded Coupling, 3/4 in Trade Size, Iron, for RMC - Three-Piece Threaded Couplings
RACOThree-Piece Threaded Couplings

RACO 1503 Three-Piece Threaded Coupling, 3/4 in Trade Size, Iron, for RMC

The RACO Threaded Coupling is a three-piece threaded coupling designed for use with RMC conduit. This iron coupling has a 3/4-inch trade size and a 1 1/8-inch overall length, identified by manufacturer part number 1503.

SKU 3G-OTH-06494

Brand
RACO
Item
1503 Three-Piece Threaded Coupling, 3/4 in Trade Size, Iron, for RMC
Part Number
1503
Category
Three-Piece Threaded Couplings
Available to Order
Also known as:1503RACO
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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
1503
Type
- Three-Piece: Iron, IMC/RMC
Overall Lg
1 1/8 in
Trade Size
3/4 in
Compatible Conduit Type
RMC

Technical Documents

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

Product Description

The RACO Threaded Coupling is a three-piece threaded coupling designed for use with RMC conduit. This iron coupling has a 3/4-inch trade size and a 1 1/8-inch overall length, identified by manufacturer part number 1503.

Frequently Asked Questions

What is a RACO three-piece threaded coupling used for?

A RACO three-piece threaded coupling joins two lengths of rigid metal conduit (RMC) in electrical raceway systems. It provides a secure, threaded connection for protecting and routing wiring in industrial, commercial, and infrastructure installations where conduit integrity is critical.

What are the specifications of the RACO 1503 coupling?

The RACO 1503 is a three-piece iron coupling with a 3/4-inch trade size and 1 1/8-inch overall length. It is compatible with RMC conduit and uses threaded connections. The iron construction offers durability for demanding environments.

Where to buy RACO threaded couplings worldwide?

3G Electric supplies RACO threaded couplings worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the RACO 1503 or other conduit fittings.

How to install a RACO three-piece threaded coupling?

To install a RACO three-piece coupling, thread the coupling onto the first conduit end, then thread the second conduit into the opposite end. Tighten the center ring to lock both conduits securely. Use a pipe wrench for proper torque, ensuring threads are clean and lubricated.

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 three-piece threaded couplings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Three-piece threaded coupling made of iron, with a 2-1/2 in trade size and 3-1/8 in overall length. Designed for joining rigid metal conduit (RMC) in threaded conduit systems. Used in electrical raceway installations for industrial and commercial applications
RACO
Three-piece threaded coupling made of iron, with a 2-1/2 in trade size and 3-1/8 in overall length. Designed for joining rigid metal conduit (RMC) in threaded conduit systems. Used in electrical raceway installations for industrial and commercial applications

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