Skip to main content
Expedited shipping available at checkout

Eaton / Cutler-Hammer QBH250 Miniature Circuit Breaker

  • 50A
  • 2 Pole
  • Bolt-On
Eaton / Cutler-Hammer QBH250
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU QBH250
Select Item Condition
Earn 145 SuperPoints
  • 50A
  • 2 Pole
  • Bolt-On

Quantity

Bulk Pricing
Send your parts list for a volume quote.

Eaton / Cutler-Hammer QBH250 - 50A 2 Pole Miniature Circuit Breaker

New

$145.00 In Stock

Quantity

Similar Items

Description

Manufactured by Eaton, the QBH250 is a 50A, two-pole miniature circuit breaker designed for residential and commercial branch circuit protection. It provides reliable thermal-magnetic tripping against overloads and short circuits. This bolt-on breaker installs into classic Commander B/BC, CEB, and Sylvania load centers. It serves as an exact drop-in replacement for older panels requiring the QBH form factor. Rated at 10kAIC, this unit is HACR rated for HVAC equipment.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Series QBH
Amperage 50A
Poles 2
Mounting Style Bolt-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Frame Type QBH
Terminal Type Box Lugs
For Use With Commander B/BC Load Centers, CEB Load Centers, Sylvania Bolt-On Load Centers
Wire Gauge 10-2 AWG (Cu), 10-1 AWG (Al)
Max Wire 2 AWG
Min Wire 10 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Padlock Attachment, Handle Lock
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break

Product FAQs

6 answers
What electrical panels are compatible with the Eaton QBH250 circuit breaker?

The QBH250 is a bolt-on breaker specifically designed to fit classic CEB, Sylvania, and Commander Electric (B/BC series) bolt-on load centers. It will not fit standard plug-in load centers or modern 1-inch format panels.

How much panel space does the QBH250 require?

This 2-pole breaker features a 3/4-inch per pole form factor, requiring a total of 1.5 inches of space in a compatible bolt-on load center.

Is the Eaton QBH250 breaker HACR rated?

Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits that require this designation.

Are QHB250 and QBH250 the same circuit breaker?

Yes, QHB250 and QHB-250 are common alternate catalog numbers used for the Eaton QBH250. They represent the exact same 50A, 2-pole bolt-on breaker.

Does the QBH250 require a mounting kit for installation?

No additional mounting kit is required. The QBH250 features a direct bolt-on connection designed to secure directly to the busbar of compatible Commander, CEB, or Sylvania panels.

Does the QBH250 feature an independent or common trip mechanism?

The QBH250 features an internal common trip mechanism, ensuring that an overcurrent or short circuit on either pole will simultaneously trip both poles.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

Shipping

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Read our full shipping policy

Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.

Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.

International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.