Verified
Matched our existing hardware and fit as expected. Clean install.
Maintenance · Retrofit work
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
circuit-breaker
Square D QOB240VH - 40 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState
| Part Number | QOB240VH |
| Amperes | 40 |
| Poles | 2 |
| Voltage | 240 |
| Product Type | circuit-breaker |
Regular price
$710.00
Sale price
$710.00
Regular price
Unit price
Save
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Square D QOB240VH - 40 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState
Regular price
$710.00
Sale price
$710.00
Regular price
Unit price
Product description
Shipping
Square D QOB240VH is a rugged 40A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect essential branch circuits with precision in panelboards and load centers.
- Bolt-on mounting for a secure, vibration-resistant connection. This reinforced mounting method creates a rigid bus connection that stays tightened in environments with vibration or movement, reducing the risk of loose contacts and intermittent trips.
- Thermal-magnetic trip unit for stable, repeatable protection. The thermal element guards against sustained overloads, while the magnetic element delivers fast, instantaneous trips for short-circuit conditions, helping to isolate faults quickly and protect equipment.
- Two-pole design for 240V circuits. By disconnecting both live conductors simultaneously, it provides complete upstream isolation and safer service for 240V loads.
- 40A, 240V rating with OEM compatibility. Engineered to protect mid-to-high current branch circuits in a way that aligns with Square D’s matching load centers and panelboards, ensuring clean, reliable integration into existing electrical systems.
- Wide applicability across spaces. Ideal for residential, commercial, and light industrial applications where dependable overcurrent and short-circuit protection is essential.
This device protects a variety of 240V branch circuits—from upgrading a home panel to supporting small commercial panels and light industrial rooms—while delivering consistent performance even in demanding installations. The QOB240VH is a trusted choice for installers who value a secure connection, precise protection, and straightforward compatibility with compatible Square D panelboards and load centers.
Technical snapshot
- Manufacturer: Square D
- Part Number: QOB240VH
- Type: Thermal-magnetic molded case circuit breaker
- Amperage Rating: 40A
- Voltage Rating: 240V
- Number of Poles: 2
- Mounting Style: Bolt-on
- Application: Branch circuit overcurrent and short-circuit protection
Contact sales@ampstate.com
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
We want you to be 100% satisfied with your purchase.
What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Quick confirmation on details and a smooth ordering process.
Purchasing · Fast turnaround
Verified
Came well packed. Labeling made receiving and staging easy.
Warehouse · Receiving
