Featuring true RMS sensing, the Square D PJA36080CU31A is a 3-pole, 800A PowerPact P-Frame breaker. It includes a MicroLogic 3.0 trip unit for highly accurate protection in industrial systems. This I-Line breaker mounts into Square D panelboards and switchboards. It serves as a substitute for discontinued MA36080 and MH36080 models during facility upgrades. The breaker is 100% rated to carry its full 800A capacity continuously. It delivers 65 kAIC at 480V with adjustable LI settings.
Specifications
Brand
Square D
Series
PJA
Amperage
800A
Amperage Range
320-800A
Voltage
240VAC, 480VAC, 600VAC
Poles
3
Phase
3
AIC Rating
100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC
Mounting Style
I-Line
Terminal Type
Lugs
For Use With
Square D I-Line Panelboards, Square D I-Line Switchboards
Load Side Lugs Included, MicroLogic 3.0 Trip Unit (Factory Installed)
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
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Square D PJA36120U44A - 1200A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/21/25
Help 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
RN
Ross N.
Reviewing
Square D PJA36080CU31A - 800A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/12/22
Stock!
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.