Rated 25kAIC at 240VAC, the Square D QDP22125TM is a 2-pole, 125A molded case circuit breaker designed for robust commercial applications. It utilizes proven thermal-magnetic trip technology to deliver dependable overcurrent protection. This PowerPact Q-frame breaker is specifically engineered to mount into EZ Meter-Pak and MP Meter-Pak metering centers. It also functions as a direct substitute for the discontinued Q22125 model. It features an 80% continuous current rating 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, Visual Trip Indicator, 80% Rated
Product FAQs
7 answers
What metering equipment is the QDP22125TM breaker compatible with?
This PowerPacT Q-frame circuit breaker is engineered specifically for installation in Square D EZ Meter-Pak and MP Meter-Pak metering centers.
Will this breaker fit into standard Square D load centers?
No. The QDP22125TM is a commercial grade PowerPacT Q-frame molded case circuit breaker with a bolt-on connection. It is not interchangeable with QO or Homeline residential plug-on panels.
Can the QDP22125TM be used as a direct replacement for discontinued Q2 breakers?
Yes. This PowerPacT Q-frame model serves as a direct, drop-in replacement for the obsolete Square D Q22125 circuit breaker previously used in older EZ Meter-Pak applications.
How does the stud and tapped pad connection work during installation?
The stud or tapped pad end of the breaker bolts directly to the internal bus bar of the metering center to establish the line connection. The load side features a standard mechanical lug to terminate the outgoing branch circuit wiring.
What does the LI trip function indicate on this molded case breaker?
LI stands for Long-Time and Instantaneous protection. The long-time function relies on a thermal element to protect against sustained overloads, while the instantaneous magnetic function trips the breaker immediately during a severe short circuit fault.
Is this circuit breaker rated for use with aluminum wire?
Yes. The load side lug is rated for both aluminum and copper conductors. When installing aluminum wire, follow standard electrical safety practices by wire brushing the stripped conductor and applying a listed antioxidant compound before tightening the lug.
Does this breaker provide ground fault or arc fault protection?
No. The QDP22125TM offers standard thermal magnetic overcurrent and short circuit protection. It does not contain internal circuitry for ground fault (GFCI) or arc fault (AFCI) detection.
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