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Square D JGA34250WU31X Molded Case Circuit Breaker
- 250A
- 3 Pole
- I-Line
Square D
JGA34250WU31X
Molded Case Circuit Breaker
Brand
Square D
SKU
JGA34250WU31X
Quantity
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Square D JGA34250WU31X - 250A 3 Pole Molded Case Circuit Breaker
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Square D JGA34250WU31X - 250A 3 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | JGA34250WU31X |
| Series | JGA |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC |
| Frame Type | J |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, I-Line Switchboards |
| 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 |
| Trip Unit Model | MicroLogic 3.2W |
| Available Options | Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UKCA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | Mission Critical, Current Limiting, HACR Rated, Visual Trip Indicator, Mercury Free, PVC Free, RoHS Compliant |
Sold out
Quantity
Square D JGA34250WU31X - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Series | JGA |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC |
| Frame Type | J |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, I-Line Switchboards |
| 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 |
| Trip Unit Model | MicroLogic 3.2W |
| Available Options | Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UKCA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | Mission Critical, Current Limiting, HACR Rated, Visual Trip Indicator, Mercury Free, PVC Free, RoHS Compliant |
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Description
Built for data centers and industrial facilities, the Square D JGA34250WU31X is a 3-pole, 250A PowerPacT J-Frame circuit breaker. Featuring an I-Line plug-on connection, this breaker mounts rapidly into Square D I-Line panelboards and switchboards. The integrated electronic trip unit offers adjustable long-time and instantaneous (LI) settings for precise coordination. It boasts a 65kAIC rating at 240VAC and includes a Visi-Trip indicator to quickly identify tripped circuits.Specifications
| Brand | Square D |
|---|---|
| Series | JGA |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC |
| Frame Type | J |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, I-Line Switchboards |
| 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 |
| Trip Unit Model | MicroLogic 3.2W |
| Available Options | Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UKCA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | Mission Critical, Current Limiting, HACR Rated, Visual Trip Indicator, Mercury Free, PVC Free, RoHS Compliant |
Product FAQs
8 answersCan I install the JGA34250WU31X in a standard Square D NQ or QO panelboard?
No, this breaker features an I-Line plug-on bracket on the line side. It is exclusively compatible with Square D I-Line panelboards and switchboards, and will not fit in standard NQ, NF, or QO panels.
What type of wire connections are on the JGA34250WU31X?
The line side features a factory-installed I-Line plug-on bracket that connects directly to the panel busbar. The load side is equipped with mechanical lugs that accept aluminum or copper conductors ranging from 3/0 AWG to 350 kcmil.
How does the MicroLogic 3.2 trip unit in the JGA34250WU31X differ from standard breakers?
The MicroLogic 3.2 is a solid-state electronic trip unit that provides highly accurate, adjustable Long-Time and Instantaneous (LI) protection. This allows for more precise selective coordination compared to traditional thermal-magnetic trip units.
What does the "W" in the JGA34250WU31X catalog number indicate?
The "W" signifies that this breaker is part of the Square D Mission Critical series. It is equipped with a MicroLogic 3.2-W trip unit, optimized for high-performance coordination in data centers, hospitals, and other critical power applications.
Does the JGA34250WU31X require a separate mounting bracket for installation?
No, the I-Line mounting bracket is factory-installed on the line side of the breaker. It is ready to plug directly into the busbar of a compatible I-Line panelboard or switchboard without additional hardware.
What is the continuous current rating of the JGA34250WU31X?
This breaker has a standard continuous current rating of 80 percent. Per the National Electrical Code (NEC), the continuous load on the circuit should not exceed 80 percent of its 250A rating (200A continuous).
How can I visually identify if the JGA34250WU31X has tripped?
Like most PowerPacT J-Frame breakers, it features a Visi-Trip indicator. When a fault occurs, the handle moves to a center tripped position and a highly visible red indicator appears, allowing you to quickly locate the tripped breaker in a crowded panel.
What is the default phase connection for the JGA34250WU31X?
This 3-pole I-Line breaker is factory-configured for a standard ABC phase connection to the panelboard busbar.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.
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Rating
8 reviews
- RGRalph G.Verified BuyerReviewingSquare D JGA36200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/14/26Replaceemnt
Replaced defective breaker
- JHJoelle H.ReviewingSquare D JGA36250 - 250A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/10/21Great Service
Fast Shipping
- CGChay G.ReviewingSquare D JGA36250 - 250A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/5/21250A breaker
Even with the special Square D pricing we receive from our local vendors SuperBreakers pricing is often the lowest available. Fast shipping and great customer service.
- JPJohn P.ReviewingSquare D JGA36200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/29/20Great price, fast service.
Great price, fast service.
- 4I4 I.ReviewingSquare D JGA36200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/29/20Just like I needed!
Just like I needed!