Built for heavy-duty applications, the Square D QJL32100 is a 3-pole, 100A MCCB. As part of the PowerPacT Q-Frame series, it delivers dependable LI trip functions. Designed with a unit-mount configuration, it integrates into Square D panelboards and switchboards. It is an exact substitute for older Q23100 and Q2L3100 models. With a 100kA interrupting capacity at 240VAC, it handles high fault currents safely. The breaker features Visi-Trip indicators and is HACR rated.
CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489
Approval
CSA, IEC, NOM, UL
Temp Rating
-25C to 70C
Construction Features
HACR Rated, Non-Interchangeable Trip
Product FAQs
6 answers
What enclosures and panelboards are compatible with the QJL32100?
This unit-mount PowerPacT Q-frame breaker is designed for use in Square D individual enclosures, switchboards, and panelboards. It is not compatible with I-Line panelboards, which require an I-Line mounting style.
What is the difference between QBL, QDL, QGL, and QJL circuit breakers?
The difference is their interrupting rating at 240VAC. The QBL is rated at 10kA, QDL at 25kA, QGL at 65kA, and QJL at 100kA. They share the same physical dimensions and unit-mount design.
What wire sizes do the lugs on the QJL32100 accept?
The included line and load lugs accept 4 AWG to 300 kcmil aluminum or copper wire.
What does the LI trip function mean on the QJL32100?
LI stands for Long-Time and Instantaneous trip functions. The Long-Time function provides thermal overload protection, while the Instantaneous function provides magnetic short-circuit protection. Both settings are fixed on this thermal-magnetic breaker.
Is the QJL32100 a feed-thru or plug-on breaker?
The QJL32100 is a feed-thru, unit-mount circuit breaker. It uses lug terminals on both the line and load sides, rather than plugging onto a busbar.
Can the QJL32100 be used on a 208Y/120VAC system?
Yes, this breaker is rated for use on 240VAC systems, which includes 208Y/120VAC applications. It provides a 100kA interrupting rating at both 208Y/120VAC and 240VAC.
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