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Square D PJA36025CU44A Molded Case Circuit Breaker
- 250A
- 3 Pole
- I-Line
Square D
PJA36025CU44A
Molded Case Circuit Breaker
Brand
Square D
SKU
PJA36025CU44A
Quantity
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Square D PJA36025CU44A - 250A 3 Pole Molded Case Circuit Breaker
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Description
Designed for demanding commercial and industrial applications, this PowerPacT P-Frame breaker delivers reliable LSIG protection via its advanced Micrologic 6.0A electronic trip unit. The plug-on I-Line mounting configuration allows for efficient installation into compatible Square D panelboards and switchboards. As a 100% rated device, it permits continuous utilization of its full 250A capacity, while providing a robust 65kAIC interrupting rating at 480VAC for superior system coordination.Specifications
| Brand | Square D |
|---|---|
| Part Number | PJA36025CU44A |
| Series | PJA |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 100-250A |
|---|
| Frame Type | PJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | I-Line Panelboards, Switchboards |
| Wire Gauge | (3) 3/0 AWG-500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 6.0A |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Communication Module, Motor Operator |
|---|---|
| Accessories | Micrologic 6.0A Trip Unit, Lugs (Load Side) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, 100% Rated, True RMS Sensing |
Product FAQs
6 answersWhat does the C stand for in the PJA36025CU44A catalog number?
The C indicates that this is a 100 percent rated circuit breaker. Unlike standard breakers that are limited to an 80 percent continuous load, this unit can carry its full 250A rating continuously when installed in an appropriately listed enclosure.
What features does the Micrologic 6.0 A trip unit provide on this breaker?
The U44 designation indicates a Micrologic 6.0 A electronic trip unit. It provides adjustable LSIG protection (Long-Time, Short-Time, Instantaneous, and Ground-Fault) and includes an integrated ammeter for phase current monitoring.
How does the I-Line connection work on the PJA36025CU44A?
The breaker features plug-on line-side jaws that mount directly onto the stepped busbars of Square D I-Line panelboards and switchboards. The load side utilizes traditional mechanical lugs for wire termination.
What wire sizes are compatible with the load lugs on this 250A P-Frame breaker?
The factory-installed load lugs accept aluminum or copper conductors ranging from 3/0 AWG to 500 kcmil.
Does this breaker include equipment ground-fault protection?
Yes. The included LSIG electronic trip unit features adjustable ground-fault protection to help prevent equipment damage from low-level arcing ground faults.
Can I use this 100 percent rated breaker in any I-Line panelboard?
While it physically fits standard I-Line busbars, the panelboard or switchboard must be specifically listed and labeled for use with 100 percent rated circuit breakers to safely utilize the continuous current rating.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- TGTroy G.Verified BuyerReviewingSquare D PJA36120U44A - 1200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/21/25Help with flood conditions
The whole process with Technitrol was Awesome. Jim the owner was extremely helpful he caught some problems with one of the breakers that I didn't notice very helpful. James and Collin were great also. The whole company really step up helping me determine what path I should take to replace/refurbish breakers that went through a flood. I never experienced a flood like this they were an awesome resource and help to me and my employer the City of Wauwatosa
- RNRoss N.ReviewingSquare D PJA36080CU31A - 800A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/12/22Stock!
Superbreakers has gotten my company out of a few binds recently. When stock is unavailable at my local supplier I've been turning to Superbreakers to save the day. Great customer service and timely shipments.