QO330 - Square D 30 Amp 3 Pole 120/240VAC Plug-In Circuit Breaker, QO Series, 10kAIC, Thermal Magnetic Trip, UL/CSA Certified

Product Overview

Square D QO330 is a 30 A, 3‑pole plug‑in circuit breaker for 120/240 VAC distribution in QO series panels. It uses a thermal‑magnetic trip mechanism and has a 10 kA interrupting rating.

The product is listed as UL and CSA certified and is sold new. Request a quote for pricing and availability.

Key Features

• 30 A rating — 3‑pole configuration for 120/240 VAC circuits
• QO series plug‑in design for installation in compatible Square D QO load centers
• Thermal‑magnetic trip for overload and short‑circuit protection
• 10 kA interrupting rating
• UL and CSA listings indicated

What this breaker does

The QO330 is a 3‑pole circuit breaker that provides overcurrent protection for three conductors in 120/240 VAC distribution circuits. It trips on sustained overloads and on high‑magnitude short‑circuit events via a thermal‑magnetic mechanism.

• Provides branch or distribution circuit protection where a 3‑pole breaker is required
• Thermal element responds to prolonged overloads; magnetic element responds to short‑circuit conditions

Electrical ratings and trip type

Key electrical specifications to use when selecting this breaker.

• Continuous current rating: 30 A
• Rated for 120/240 VAC
• Trip type: thermal‑magnetic
• Interrupting rating: 10 kA

Panel compatibility and fit

This is a plug‑in QO series breaker intended for installation in panels or load centers that accept QO‑series plug‑in breakers. Confirm physical fit and panel model prior to purchase.

• Plug‑in mounting for Square D QO series load centers
• Verify panel compatibility before ordering

Safety and certification

The listing indicates UL and CSA certification, which are commonly relied on for safety compliance in North America.

• UL listed
• CSA certified

Before You Order

Verify the breaker part number and that your Square D QO panel accepts QO series plug‑in breakers.

• Confirm panel compatibility and available spaces for a 3‑pole breaker
• Ensure 30 A and 120/240 VAC ratings match your circuit requirements

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for QO330 - Square D 30 Amp 3 Pole 120/240VAC Plug-In Circuit Breaker, QO Series, 10kAIC, Thermal Magnetic Trip, UL/CSA Certified. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.