QOB350VH - Square D 50 Amp 120/240V 3 Pole Bolt-On Circuit Breaker 22kA Interrupt Rating

Product Overview

The QOB350VH is a Square D 3‑pole, bolt‑on circuit breaker rated 50 amps for 120/240 V systems with a 22 kA interrupting rating.

This listing is for the exact SKU QOB350VH (new condition). Request a quote for pricing and availability.

Key Features

• 50 A continuous current rating
• 120/240 V nominal system voltage
• 3‑pole configuration for three‑wire or three‑phase protection
• Bolt‑on mounting style
• 22 kA interrupting rating (kAIC)

What this breaker does

The QOB350VH is a 3‑pole circuit breaker designed to provide overcurrent protection in 120/240 V electrical systems. As a 3‑pole device, it interrupts all three poles simultaneously, making it suitable for multi‑wire branch circuits or three‑phase loads that require common trip protection.

• Protects circuits up to 50 amps
• Three‑pole common trip action for coordinated protection across poles
• Intended for use where bolt‑on breakers are specified

Electrical ratings and load suitability

Use the QOB350VH only where the electrical ratings match your system requirements. The unit is rated 50 A and for 120/240 V nominal systems. Its interrupting rating is 22 kA, indicating the maximum prospective short‑circuit current the breaker is specified to safely interrupt.

• Nominal voltage: 120/240 V
• Ampacity: 50 A
• Interrupting rating: 22 kA

Mounting and physical configuration

The QOB350VH uses a bolt‑on mounting style and is supplied as a 3‑pole assembly. Verify mechanical compatibility with your equipment and panel—bolt‑on breakers require the matching chassis and bolt pattern for installation.

• Mount style: bolt‑on
• Poles: 3 (three‑pole)

Ordering details

This product page covers the exact SKU QOB350VH. The unit is listed as new. For pricing and availability, request a quote from Lumera Electric.

• Manufacturer: Square D
• Part number / SKU: QOB350VH
• Condition: New — request a quote for pricing and lead time

Before You Order

Confirm the model number and quantity required before ordering. Verify that the breaker’s electrical ratings, pole count, and bolt‑on mounting style match your panel and system requirements.

• Confirm compatibility with your panel chassis and bolt pattern.
• Verify 50 A and 120/240 V are suitable for the intended load.
• If short‑circuit duty exceeds 22 kA, select equipment rated for the higher prospective fault current.

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for QOB350VH - Square D 50 Amp 120/240V 3 Pole Bolt-On Circuit Breaker 22kA Interrupt Rating. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.