Square D JGA36250U44X Molded Case Circuit Breaker
- 250A
- 3 Pole
- I-Line
Square D
JGA36250U44X
Molded Case Circuit Breaker
Brand
Square D
SKU
JGA36250U44X
Quantity
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Square D JGA36250U44X - 250A 3 Pole Molded Case Circuit Breaker
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Description
Providing comprehensive circuit protection, the Square D JGA36250U44X is a 3-pole, 250A PowerPacT J-Frame molded case circuit breaker. It is engineered for heavy-duty 600VAC applications. This breaker is compatible with Square D I-Line panelboards and switchboards. The specialized I-Line mounting bracket ensures a secure, efficient plug-on connection. The Micrologic 6.Specifications
| Brand | Square D |
|---|---|
| Part Number | JGA36250U44X |
| Series | JGA |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Frame Type | J |
|---|---|
| Terminal Type | Lugs |
| For Use With | 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 | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 6.2A |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, 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 | HACR Rated, Current Limiting, Visual Trip Indicator, True RMS Sensing, Mercury Free, PVC Free, 80% Rated |
Product FAQs
6 answersWhich panelboards are compatible with the JGA36250U44X breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a plug-on mounting style that connects directly to the proprietary I-Line bus system.
What trip functions are included with the U44X designation?
The U44X suffix indicates an advanced Micrologic electronic trip unit equipped with LSIG functions. This provides adjustable protection for Long-Time, Short-Time, Instantaneous, and Ground-Fault parameters, allowing for precise system coordination.
What conductor sizes are supported by the standard lugs on this J-Frame breaker?
The factory-installed lugs accept wire sizes ranging from 3/0 AWG to 350 kcmil. These terminals are dual-rated for use with either aluminum or copper conductors.
Does the JGA36250U44X provide ground fault protection?
Yes, the included LSIG trip unit features integrated equipment ground fault protection. This is designed to protect machinery and electrical systems from ground faults, but it is not intended for personnel protection like a standard GFCI receptacle.
What do the letters in the JGA prefix stand for?
The J indicates the PowerPacT J-Frame family. The G specifies the interrupting rating tier, and the A denotes the I-Line plug-in mounting style used for Square D distribution equipment.
How is this breaker mounted into the enclosure?
It utilizes the Square D I-Line plug-in mounting system. The breaker jaws push directly onto the panelboard bus stack, and the unit is then secured in place with a mounting bracket and retaining screws.
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