Square D JGL36250U43X Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Quantity
Square D JGL36250U43X 3 Pole Circuit Breaker
New
Quantity
Description
Square D JGL36250U43X 3 Pole Circuit Breaker
The Square D JGL36250U43X is a 3 Pole solid state molded case circuit breaker with a current rating of 250 Amps and a voltage rating of 600VAC, 250/500VDC. It has an interrupting rating of 65kAIC at 240VAC, 35kAIC at 480VAC. The JGL36250U43X has a feed-thru connection type and includes long time, short time and instantaneous trip functions.
Specifications
| Brand | Square D |
|---|---|
| Series | JGL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | J |
|---|---|
| Terminal Type | Lugs |
| Wire Gauge | 3/0 AWG-350 MCM |
| Max Wire | 350 MCM |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable Thermal, Adjustable Magnetic |
| Standards | RoHS, REACh, HACR, HID |
|---|---|
| Approval | CE, UL, CSA, NEMA, NOM, IEC, BS, CCC, CEI, NMX, SWD, UNE, UTE, VDE |
| Temp Rating | -25 to 70 °C |
Product FAQs
7 answersWhat does the U43X suffix indicate on the JGL36250U43X circuit breaker?
The U43X suffix indicates that this breaker is equipped with a Micrologic 5.2 A (Ammeter) electronic trip unit. This provides adjustable Long-time, Short-time, and Instantaneous (LSI) trip functions for precise selective coordination.
Does this breaker include an ammeter display?
Yes, the Micrologic 5.2 A trip unit included with the JGL36250U43X features an integrated digital ammeter. This allows for local current monitoring and easier setup of the LSI trip parameters.
Can the Square D JGL36250U43X be reverse fed?
Yes, PowerPacT J-frame circuit breakers with electronic trip units are generally suitable for reverse-fed applications, allowing power to be supplied to either the line or load terminals.
What is the continuous current rating of the JGL36250U43X?
This breaker is standard-rated at 80 percent continuous current. It is not a 100 percent rated breaker, which would typically be indicated by a C suffix in the catalog number.
Can I use the JGL36250U43X in a single-phase 240V application?
Yes. Square D PowerPacT J-frame breakers with U43X Micrologic trip units are marked for single-phase use, but only on 240VAC circuits. You can use any two poles for the connection.
Can I install the JGL36250U43X in a Square D I-Line panelboard?
No. The JGL36250U43X is a unit-mount (feed-thru) breaker equipped with lugs on both the line and load sides. For an I-Line panelboard, you need an I-Line version like the JGA36250U43X, which features a plug-in jaw on the line side.
Does the JGL36250U43X include a push-to-trip feature?
Yes, all Square D PowerPacT circuit breakers feature an integral push-to-trip button on the front cover. This allows you to manually trip the breaker to verify the mechanical operation of the tripping mechanism.
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