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Square D JLL36250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Square D
JLL36250
Molded Case Circuit Breaker
Brand
Square D
SKU
JLL36250
Quantity
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Square D JLL36250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
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Square D JLL36250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | JLL36250 |
| Series | JLL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 125kA @ 240VAC, 100kA @ 480Y/277VAC, 100kA @ 480VAC, 50kA @ 600Y/347VAC, 50kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | JLL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NQ Panelboards, Square D NF Panelboards, Square D QED Switchboards, Industrial Control Panels, Motor Control Centers |
| Wire Gauge | 3/0 AWG-350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Handle Padlock Attachment |
|---|---|
| Accessories | Lugs (Line and Load) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Reverse Feed, RoHS Compliant |
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Square D JLL36250 - 250A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | JLL36250 |
| Series | JLL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 125kA @ 240VAC, 100kA @ 480Y/277VAC, 100kA @ 480VAC, 50kA @ 600Y/347VAC, 50kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | JLL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NQ Panelboards, Square D NF Panelboards, Square D QED Switchboards, Industrial Control Panels, Motor Control Centers |
| Wire Gauge | 3/0 AWG-350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Handle Padlock Attachment |
|---|---|
| Accessories | Lugs (Line and Load) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Reverse Feed, RoHS Compliant |
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Description
Built for demanding electrical distribution networks, this 250A Square D breaker utilizes thermal-magnetic trip technology with an adjustable magnetic threshold. It fits seamlessly into QED switchboards, motor control centers, and compatible NQ or NF panelboards. With a high interrupting capacity of 100kA at 480VAC, the device ensures robust fault clearing. The integrated Visi-Trip indicator allows maintenance personnel to easily spot tripped circuits within crowded industrial enclosures.Specifications
| Brand | Square D |
|---|---|
| Part Number | JLL36250 |
| Series | JLL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 125kA @ 240VAC, 100kA @ 480Y/277VAC, 100kA @ 480VAC, 50kA @ 600Y/347VAC, 50kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | JLL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NQ Panelboards, Square D NF Panelboards, Square D QED Switchboards, Industrial Control Panels, Motor Control Centers |
| Wire Gauge | 3/0 AWG-350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Handle Padlock Attachment |
|---|---|
| Accessories | Lugs (Line and Load) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Reverse Feed, RoHS Compliant |
Product FAQs
7 answersWhich panelboards and switchboards are compatible with the JLL36250 breaker?
This unit mount breaker is designed for use in Square D NQ and NF panelboards, QED switchboards, motor control centers, and custom industrial control panels. It requires the appropriate mounting hardware or enclosure space for a unit-mounted J-Frame footprint.
How does the JLL36250 mount inside an enclosure?
This is a unit-mount, or feed-thru, circuit breaker. It secures directly to the backpan or mounting plate using screws and connects to the bus or cabling via mechanical lugs on both the line and load sides, rather than plugging onto an I-Line bus.
What does the L in the JLL36250 catalog number indicate?
The second L designates the interrupting rating tier within the PowerPacT J-Frame family. The L-interrupting tier provides a high capacity rating of 100kA at 480VAC, which is higher than the standard D, G, or J tiers.
Can I use the JLL36250 to replace a JDL36250 or JGL36250?
Yes, the JLL36250 shares the exact same physical dimensions and mounting footprint as the JDL and JGL models. Because it has a higher interrupting rating, it is a safe and code-compliant upgrade or replacement for systems requiring 250A protection.
What wire sizes are accepted by the standard lugs on this breaker?
The factory-installed mechanical lugs accept wire gauges ranging from 3/0 AWG up to 350 kcmil. The terminals are rated for use with either aluminum or copper conductors.
How does the LI trip unit function on the JLL36250?
The LI designation indicates Long-Time and Instantaneous protection. This thermal magnetic trip unit features a fixed thermal element for the Long-Time overload protection, and an adjustable magnetic element for the Instantaneous short-circuit protection. The adjustable magnetic dial allows you to fine-tune the trip threshold to prevent nuisance tripping from motor inrush currents.
Is this breaker suitable for use in DC circuits?
Yes, the JLL36250 is rated for DC applications up to 250VDC, providing an interrupting capacity of 20kA. Ensure proper wiring configurations are followed for DC systems as specified by Schneider Electric guidelines.
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