Engineered for reliable overcurrent protection, the Square D QGP22090TM is a 90A, 2-pole PowerPacT Q-Frame MCCB. It features a thermal-magnetic trip unit with fixed long-time and instantaneous (LI) functions for commercial distribution systems. This unit-mount breaker is designed for installation in Square D Meter-Pak metering centers, including 225A MPL lever bypass equipment. It utilizes line-side terminal nuts and load-side lugs, accepting 4 AWG to 300 kcmil wire.
What enclosures are compatible with the QGP22090TM circuit breaker?
This breaker is specifically designed for use in Square D Meter-Pak Metering Centers.
Is the QGP22090TM compatible with I-Line panelboards?
No, the QGP22090TM is a unit-mount, bolt-on breaker. It is not designed for I-Line panelboards, which require breakers with I-Line specific plug-on mounting brackets.
What does the G in the QGP22090TM part number signify?
In the Square D PowerPacT Q-Frame series, the G designates an interrupting rating of 65kA at 240VAC.
Are there alternative interrupting ratings available for this 90A Q-Frame breaker?
Yes. If your system requires a different short-circuit rating, Square D offers this breaker in QBP (10kA), QDP (25kA), and QJP (100kA) configurations.
How are wire connections made to the QGP22090TM?
This breaker features stud and tapped pad terminals. In typical Meter-Pak installations, it utilizes line-side terminal nuts and load-side lugs to secure the connections.
Does this breaker include a push-to-trip feature?
Yes, Square D PowerPacT Q-Frame breakers include an integral push-to-trip button on the cover, allowing you to manually trip the breaker for testing and maintenance.
How does the thermal-magnetic trip unit in the QGP22090TM protect the circuit?
The thermal element provides long-time protection against gradual overloads, while the magnetic element delivers instantaneous protection by tripping immediately during a short-circuit fault.
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Customers rate this product 5.0 out of 5 based on 1 review.