QOB320 - Square D 20A 240V 3 Pole Bolt-On Circuit Breaker, 10kA Interrupt, Thermal Magnetic Trip

Product Overview

QOB320 is a Square D 20 A, 240 V, 3-pole bolt-on circuit breaker with a thermal-magnetic trip and a 10 kA interrupting rating.

This listing covers the single SKU QOB320. Request a quote for pricing and availability and confirm model and quantity before ordering.

Key Features

• 20 A current rating at 240 V
• Three-pole design
• Thermal-magnetic trip
• Bolt-on mounting
• 10 kA interrupting rating

What this breaker does

The QOB320 provides branch-circuit protection using a thermal-magnetic trip mechanism that responds to overloads and short-circuit conditions.

• Provides overcurrent protection for three conductors simultaneously
• Thermal-magnetic trip combines overload (thermal) and instantaneous (magnetic) response

Electrical ratings and interrupting capacity

Use these specifications to confirm the breaker matches your electrical requirements.

• Current rating: 20 A
• Voltage: 240 V
• Pole count: 3
• Interrupting rating: 10 kA

Mounting style and installation overview

The breaker uses a bolt-on mounting style. Verify that your load center or switchgear accepts bolt-on breakers and the breaker physical dimensions and terminal arrangements meet your panel requirements.

• Mounting type: bolt-on
• Confirm panel compatibility before installation

Before you order

Confirm the part number and quantity required and request a quote for pricing and availability.

• Verify part number QOB320 against your panel or equipment requirements
• Confirm 20 A, 240 V, 3-pole thermal-magnetic protection is appropriate for the application

Before You Order

Confirm model QOB320 and the quantity you need; request a quote for pricing and availability.

• Ensure the panel or switchgear accepts 3-pole bolt-on breakers
• Verify the breaker ratings (20 A, 240 V, 10 kA interrupting) meet application requirements

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for QOB320 - Square D 20A 240V 3 Pole Bolt-On Circuit Breaker, 10kA Interrupt, Thermal Magnetic Trip. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.