Rated for 175 amps, this PowerPacT J-Frame circuit breaker provides essential long-time and instantaneous trip functions for commercial and industrial facilities. Engineered for unit-mount installations, it fits seamlessly into Square D NQ and NF panelboards, QED switchboards, and motor control centers. With a 65kAIC rating at 480V, it handles high fault currents. The thermal-magnetic trip unit ensures consistent performance while the current-limiting design minimizes fault damage.
What does the "JJP" catalog designation mean for this Square D breaker?
In the PowerPacT nomenclature, the first "J" indicates the 250A max J-Frame size. The second "J" denotes the interrupting rating tier, which provides 65 kAIC at 480VAC. The "P" specifies a unit mount configuration with a terminal nut on the line side and standard lugs on the load side.
What type of electrical connections are standard on the JJP36175?
This breaker comes factory equipped with a terminal nut connection on the line side and mechanical lugs on the load side. The load side lugs accept 4 AWG to 4/0 AWG aluminum or copper wire.
Can I install the JJP36175 in an I-Line panelboard?
No. The JJP36175 is a unit mount, or bolt-on, circuit breaker designed for Square D NQ and NF panelboards, QED switchboards, and industrial control panels. For an I-Line panelboard, you will need an I-Line specific breaker like the JJA36175.
What are the magnetic trip settings for the JJP36175?
This thermal magnetic breaker features a fixed thermal trip and an adjustable magnetic trip. The magnetic hold current is 875A, and the magnetic tripping current is 1750A.
What is the recommended tightening torque for the load side lugs?
The load side lugs on the JJP36175 should be torqued to 230 lb-in (26 N.m) when using 4 AWG to 4/0 AWG wire.
How does the JJP36175 differ from the JJL36175?
Both are 175A, 3-pole, unit mount PowerPacT J-Frame breakers with identical interrupting ratings. The difference is the termination. The JJP36175 has a terminal nut on the line side and lugs on the load side, while the JJL36175 features mechanical lugs on both the line and load sides.
Does this breaker provide current limiting protection?
Yes, the PowerPacT J-Frame series features a current limiting design that minimizes fault damage by reducing the let-through energy during a short circuit.
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