Built for commercial and industrial applications, this 90A, 3-pole MCCB belongs to the Square D PowerPacT Q-Frame lineup. It provides essential overcurrent protection for 240V electrical systems requiring reliable branch circuitry. The unit-mount construction is specifically tailored for Square D Meter-Pak and EZ Meter-Pak metering centers. Facility managers can also use this model to seamlessly replace discontinued Q23090 breakers in existing setups. It features a 10kAIC interrupt capacity.
What metering equipment is the QBP32090TM designed to fit?
It is specifically engineered to integrate into Square D Meter-Pak and EZ Meter-Pak Meter Centers.
Is the QBP32090TM a suitable replacement for the discontinued Q23090?
Yes, this PowerPacT Q-Frame breaker serves as an exact, direct substitute for the legacy Q23090, simplifying retrofits and panel maintenance.
What are the higher-rated alternatives to the QBP32090TM if my system requires more than 10kAIC?
If your fault current study requires a higher interrupting capacity, you can use the QDP32090TM (25kAIC), QGP32090TM (65kAIC), or QJP32090TM (100kAIC). They share the same physical footprint and 90A rating but offer greater short-circuit protection.
How are conductors terminated on the QBP32090TM?
This unit-mount breaker utilizes a bolt-on connection with stud and tapped pad terminals. It accepts either aluminum or copper wire ranging from 4 AWG to 300 kcmil.
What type of protection does the LI trip function code provide on this breaker?
The LI designation indicates a thermal-magnetic trip unit providing Long-Time (L) protection against gradual overloads and Instantaneous (I) protection against severe short circuits. Both the thermal and magnetic trip points are fixed.
Is the QBP32090TM rated for 100 percent continuous operation?
No, like most standard molded case circuit breakers, it carries an 80 percent continuous current rating. Continuous loads should not exceed 72 amps (80 percent of its 90A nominal rating) for periods of three hours or more.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
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.
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.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.