Built for commercial and industrial power distribution, the Square D QDA220701 is a 70A, two-pole molded case circuit breaker. It is part of the PowerPact Q-frame series, offering dependable thermal-magnetic protection. This breaker features an I-Line mounting style with an AB phase connection, allowing it to install into Square D I-Line panelboards. It is also an exact substitute for the legacy Q220701 breaker.
What panelboards accept the QDA220701 circuit breaker?
This breaker is designed specifically for Square D I-Line panelboards and switchboards. It features an I-Line plug-on connection for the line side and standard lugs for the load side.
What does the trailing 1 in the QDA220701 part number signify?
The 1 at the end of the catalog number indicates an AB phase connection for mounting onto the I-Line bus.
Is the QDA220701 suitable for HVAC applications?
Yes, this PowerPacT Q-frame breaker is HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment.
What are the fixed magnetic trip thresholds for this breaker?
The thermal-magnetic trip unit has a magnetic hold current of 1000A and a magnetic tripping current of 1800A.
What is the required torque for the load lugs on the QDA220701?
The load side lugs require a tightening torque of 248 lb-in (28 N.m) when using 4 AWG to 300 kcmil copper or aluminum wire.
Is this a standard or 100% rated circuit breaker?
The QDA220701 is a standard 80% rated breaker. Continuous loads should not exceed 80% of its 70A nominal rating.
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Review summary
Customers rate this product 5.0 out of 5 based on 6 reviews.