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Square D JGL36250CU31X Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Square D
JGL36250CU31X
Molded Case Circuit Breaker
Brand
Square D
SKU
JGL36250CU31X
Quantity
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Square D JGL36250CU31X - 250A 3 Pole Molded Case Circuit Breaker
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Description
Delivering reliable power protection for commercial facilities, this PowerPacT J-Frame device features a 100% continuous current rating. It mounts into Square D NF panelboards, motor control centers, and industrial enclosures using standard lug connections. The onboard Micrologic 3.2 electronic trip unit allows precise coordination through adjustable long-time and instantaneous pickup settings. This configuration ensures optimal safety without nuisance tripping.Specifications
| Brand | Square D |
|---|---|
| Part Number | JGL36250CU31X |
| Series | JGL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Amperage Range | 100-250A |
|---|
| Frame Type | JGL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NF Panelboards, Switchboards, Motor Control Centers, Industrial Enclosures |
| Wire Gauge | 3/0 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle, Communication Module |
|---|---|
| Accessories | Lugs (AL250JD) |
| Standards | CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL, UKCA |
| Temp Rating | -25C to 70C |
| Construction Features | 100% Rated, HACR Rated, Mercury Free, PVC Free, Visual Trip Indicator |
Product FAQs
7 answersWhat does the U31X suffix mean in the JGL36250CU31X catalog number?
The U31X suffix indicates the breaker is equipped with a Micrologic 3.2 electronic trip unit. This solid-state trip unit provides adjustable long-time and instantaneous (LI) protection settings for precise circuit coordination.
Can the JGL36250CU31X be mounted on a DIN rail?
Yes. While it comes standard as a unit-mount breaker with lugs, it can be adapted for 35mm DIN rail mounting by installing the Square D S29305 DIN rail mounting kit.
Does the JGL36250CU31X offer short-time trip adjustments?
No. The included Micrologic 3.2 trip unit features an LI configuration, meaning it only provides adjustable long-time and instantaneous protection. It does not include a short-time delay function.
Is the JGL36250CU31X compatible with I-Line panelboards?
No. The JGL36250CU31X is a unit-mount breaker designed for feed-thru lug connections. For I-Line plug-in panelboards, a breaker with a JGA, JJA, or JLA prefix is required.
Is the JGL36250CU31X rated for 100% continuous current?
Yes. The C in the catalog number indicates that this breaker is 100% rated. It can carry its full 250A continuous current rating, provided it is installed in a properly sized enclosure with 90C rated wire sized to the 75C ampacity column.
Can the JGL36250CU31X be reverse fed?
Yes. This PowerPacT J-Frame breaker is suitable for reverse-feed applications, allowing power to be supplied to either the line or load terminals without affecting its protective functions.
Does the JGL36250CU31X feature a Visi-Trip indicator?
Yes. This PowerPacT J-Frame breaker includes a Visi-Trip LED locator, which provides a clear visual alert when the breaker has tripped, making it easier to identify and troubleshoot faults in crowded panels.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.
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Rating
3 reviews
- BBrentVerified BuyerReviewingSquare D JGL36200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/26Breaker
Breaker looked brand new. Worked great.
- JSJason S.ReviewingSquare D JGL36150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/10/22Delighted
Exactly what I needed, showed up the next day. Price was better than anywhere else I could find.
- LHLucas H.ReviewingSquare D JGL36200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/2/21Super reliable!
Needed in express 2 breakers JG 250. They air shipped it and they arrived the next day. Great job!