Operating as a core component in commercial power distribution, this 175-amp molded case circuit breaker utilizes proven thermal-magnetic technology. The PowerPacT Q-Frame design ensures accurate fault response. Equipped for unit-mount installation, the breaker fits Square D switchboards and metering devices. It acts as a substitute for legacy Q22175, QGL22175, and QJL22175 models. Rated at 25kAIC for 240V systems, this HACR-rated unit includes a Visi-Trip indicator for rapid identification.
What types of equipment is the QDL22175 circuit breaker compatible with?
This unit mount breaker is designed for use in Square D individual enclosures, metering devices, switchboards, and compatible panelboards.
Can the QDL22175 replace older legacy circuit breakers?
Yes, the QDL22175 is a direct replacement for legacy Square D Q22175 circuit breakers. It shares the same physical footprint and unit mount configuration.
How are conductors terminated on the QDL22175?
This feed-thru breaker includes factory-installed mechanical lugs on both the line and load sides, which accept 4 AWG to 300 kcmil aluminum or copper conductors.
What are the magnetic trip settings for this 175A breaker?
The QDL22175 features a fixed thermal magnetic trip unit with a magnetic hold current of 1200A and a magnetic trip current of 2400A.
Does this breaker plug onto a busbar?
No, the QDL22175 is a unit mount, feed-thru circuit breaker. It uses lug connections on both the line and load sides rather than plugging directly onto a panelboard bus.
Is the QDL22175 suitable for 208Y/120V systems?
Yes, while it has a maximum voltage rating of 240VAC, it is fully rated for use on 208Y/120VAC systems, providing a 25kAIC interrupting rating at both voltages.
Can I adjust the trip settings on the QDL22175?
No, this breaker features a non-interchangeable trip unit with fixed thermal and fixed magnetic trip settings.
Does this breaker include a push-to-trip feature for testing?
Yes, PowerPacT Q-frame breakers include a built-in push-to-trip button that allows you to manually test the tripping mechanism for routine maintenance and safety checks.
Can the QDL22175 be installed in NQ or NQOD panelboards?
Yes, but because it is a unit mount breaker, installing it as a sub-feed breaker in NQ or NQOD panelboards requires a specific adapter kit and mounting pan assembly.
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Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.