Offering advanced circuit protection, the Square D PKL46100CU44A is a 4-pole, 1000A molded case circuit breaker from the PowerPacT P-Frame family. This unit-mount breaker is fully compatible with Square D switchboards, motor control centers, and P-Frame enclosures. It features a highly configurable Micrologic 6.0A electronic trip unit, delivering long-time, short-time, instantaneous, and ground fault (LSIG) protection with an integrated ammeter. It is 100% rated and provides 65kAIC at 240V.
Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Communication Module, Padlock Attachment
Accessories
Micrologic 6.0A Trip Unit, Lugs
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
100% Rated, HACR Rated, True RMS Sensing
Product FAQs
7 answers
What enclosures or panels is the PKL46100CU44A compatible with?
This unit-mount breaker is designed for use in Square D switchboards, motor control centers, and PowerPacT P-Frame enclosures.
Can this breaker be installed in an I-Line panelboard?
No, the PKL46100CU44A is a unit-mount (feed-thru) breaker with lugs on both ends. It is not designed for I-Line panelboards, which require an I-Line specific plug-on termination.
Is the PKL46100CU44A 100 percent rated or standard 80 percent rated?
The 'C' in the catalog number indicates that this breaker is 100 percent rated, allowing it to carry its full 1000A continuous current rating without standard derating.
What does the 'U44A' suffix mean in the catalog number?
The 'U44A' suffix specifies that the breaker is equipped with a Micrologic 6.0 A (Ammeter) electronic trip unit featuring LSIG (Long-Time, Short-Time, Instantaneous, Ground-Fault) protection.
Does this breaker come with lugs installed?
Yes, the 'L' in the PKL prefix indicates that it comes with factory-installed lugs on both the line and load ends. The lugs accept four 3/0 AWG to 500 kcmil aluminum or copper wires per phase.
Can the trip settings be adjusted on this breaker?
Yes, the Micrologic electronic trip unit features fully adjustable settings for the LSIG (Long-Time, Short-Time, Instantaneous, and Ground-Fault) functions to coordinate with your specific system requirements.
Does this breaker provide equipment ground-fault protection?
Yes, the included Micrologic 6.0 A trip unit features integrated ground-fault protection (the 'G' in LSIG) to help protect equipment from low-level fault currents.
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