SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Three Phase, 10kA at 120/240V AC
The SQUARE D QOB350 is a 50 A, three-phase miniature circuit breaker from the QOB Series, designed for bolt-on installation. It is rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC and is…
SKU 3G-OTH-23244
Also listed as: QOB 350 · QOB-350
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
Need installation or engineering help?
Ask a question
Product Description
The SQUARE D QOB350 is a 50 A, three-phase miniature circuit breaker from the QOB Series, designed for bolt-on installation. It is rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC and is intended for use with Square D NQOD Panelboards.
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 QOB350 miniature circuit breaker used for?
The SQUARE D QOB350 is a 50 A, three-phase miniature circuit breaker used for overcurrent protection in commercial and industrial electrical panels. It is designed for bolt-on installation in Square D NQOD panelboards, protecting circuits rated at 120/240V AC with a 10kA interrupting capacity.
What are the specifications of the SQUARE D QOB350 circuit breaker?
The SQUARE D QOB350 is a 3-pole, 50 A miniature circuit breaker rated for 120/240V AC, three-phase. It has a maximum AIR rating of 10kA at 120/240V AC and is part of the QOB Series for bolt-on mounting. It is intended for use with Square D NQOD panelboards.
Where to buy the SQUARE D QOB350 circuit breaker worldwide?
3G Electric supplies the SQUARE D QOB350 circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to source this genuine Square D QOB Series breaker for your NQOD panelboard application.
How to install the SQUARE D QOB350 circuit breaker?
The SQUARE D QOB350 is a bolt-on type breaker designed for Square D NQOD panelboards. Ensure power is off, then align the breaker with the panel bus and tighten the mounting bolt securely. Follow NEC guidelines and consult a qualified electrician for proper installation and torque specifications.
Used in
Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D qob series, bolt-on square d miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
