Belonging to the PowerPacT Q-Frame family, this 225A, two-pole unit mount breaker is designed for commercial distribution systems. It features fixed long-time and instantaneous trip functions to safeguard infrastructure against overloads. The unit mounts into Square D NQOD and NQ panelboards, serving as an exact upgrade for the legacy Q2L2225. With a robust 65kA interrupting rating at 240VAC, it handles demanding fault current requirements while utilizing standard line and load lugs.
Which Square D panelboards are compatible with the QGL22225?
This unit mount breaker is designed for use in Square D NQ and legacy NQOD panelboards, as well as switchboards and individual enclosures. Because it is unit mounted, it requires specific mounting hardware or a main breaker kit rather than plugging directly onto the bus.
Does the QGL22225 plug directly onto the panelboard bus?
No, this is a unit mount breaker with feed-thru lug connections. It does not plug onto the bus like standard QO or I-Line breakers. It must be bolted in place using the appropriate mounting hardware or main breaker kit.
What wire sizes and materials are accepted by the QGL22225 lugs?
The standard factory-installed line and load lugs on this breaker accept 4 AWG to 300 kcmil aluminum or copper (Al/Cu) conductors.
What is the recommended tightening torque for the QGL22225 lugs?
The standard lugs for 4 AWG to 300 kcmil wire should be torqued to 248 lb-in (28 N.m). Always verify the torque specifications printed directly on the breaker label before finalizing your connections.
Can the QGL22225 replace older legacy circuit breakers?
Yes, this PowerPacT Q-frame breaker serves as a direct replacement and exact upgrade for the legacy Square D Q2L2225 circuit breaker.
Can the QGL22225 be used on 208Y/120V systems?
Yes, while it is rated for a maximum of 240VAC, it is fully compatible with 208Y/120VAC systems. It provides a 65kA interrupting rating at both 208V and 240V.
Is the QGL22225 suitable for HVAC applications?
Yes, this breaker is HACR rated. It is approved for use with heating, air conditioning, and refrigeration equipment that requires HACR type overcurrent protection.
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