SQUARE D Safety Switch: Fusible, 30 A, Three Phase, 240V AC, Galvanized Steel
The SQUARE D D321NRB is a 30 A, three-phase, fusible safety switch rated for 240V AC. Constructed with galvanized steel for indoor/outdoor use, this switch provides a reliable disconnection point for electrical circuits.
SKU 3G-OTH-28363
Need installation or engineering help?
Ask a question
Product Description
The SQUARE D D321NRB is a 30 A, three-phase, fusible safety switch rated for 240V AC. Constructed with galvanized steel for indoor/outdoor use, this switch provides a reliable disconnection point for electrical circuits.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the SQUARE D D321NRB safety switch used for?
The SQUARE D D321NRB is a fusible safety switch used to safely disconnect electrical power for maintenance or emergency shutdown in industrial and commercial three-phase systems up to 240V AC. It is suitable for indoor/outdoor installations with a galvanized steel enclosure.
What are the specifications of the SQUARE D D321NRB safety switch?
The SQUARE D D321NRB is a 30 A, three-phase, 240V AC fusible safety switch with a galvanized steel enclosure rated for indoor/outdoor use. It accepts Class R or Class H fuses and features a visible blade design for safe lockout/tagout. The manufacturer part number is D321NRB.
Where to buy the SQUARE D D321NRB safety switch worldwide?
3G Electric supplies the SQUARE D D321NRB safety switch worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source genuine SQUARE D components for reliable power disconnection.
How to install the SQUARE D D321NRB safety switch?
Install the SQUARE D D321NRB by mounting the galvanized steel enclosure on a flat surface using the provided knockouts. Ensure the switch is de-energized, connect line and load conductors per local codes, and install the correct fuse type (Class R or H). Always follow lockout/tagout procedures before servicing.
Used in
Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D fusible safety switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















