Square D JLL26200 Molded Case Circuit Breaker
- 200A
- 2 Pole
- Unit Mount
Quantity
Square D JLL26200 - 200A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for heavy-duty commercial applications, the Square D JLL26200 is a 2-pole, 200A PowerPacT J-Frame MCCB. It provides reliable protection for motor control centers and QED switchboards. This unit-mount breaker features line and load lugs, integrating seamlessly into Square D NQ and NF panelboards. It also serves as a direct substitute for JRL26200 models. Rated for 125kAIC at 240VAC, it utilizes thermal-magnetic trip technology with an adjustable magnetic trip and a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | JLL26200 |
| Series | JLL |
| Amperage | 200A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 125kA @ 240VAC, 100kA @ 480Y/277VAC, 100kA @ 480VAC, 50kA @ 600Y/347VAC, 50kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | J |
|---|---|
| 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 answersWhat panelboards and switchboards are compatible with the JLL26200?
This PowerPacT J-frame breaker is designed for use in Square D NQ and NF panelboards, QED switchboards, motor control centers, and industrial control panels.
How is this breaker mounted in an enclosure?
The JLL26200 is a unit-mount breaker. It installs using standard fasteners and features feed-thru lug connections on both the line and load sides, rather than plugging onto a busbar or utilizing an I-Line connection.
What does the L interrupting rating indicate on this J-Frame breaker?
The L designates a very high interrupting capacity. For this model, it provides up to 125kA at 240VAC, 100kA at 480VAC, and 50kA at 600VAC, making it suitable for commercial and industrial systems with high available fault currents.
What wire sizes are accepted by the standard lugs on this breaker?
The factory-installed lugs accept aluminum or copper conductors ranging from 3/0 AWG to 350 kcmil. Ensure proper torque specifications are followed during installation as outlined on the breaker faceplate.
How does the adjustable magnetic trip function work on the JLL26200?
While the thermal (long-time) protection is fixed at 200 amps, the magnetic (instantaneous) trip threshold can be adjusted via a dial on the trip unit. This allows electricians to fine-tune the short-circuit response to coordinate with other protective devices in the system.
Can the JLL26200 be used to replace older Square D 200A breakers?
Yes, the PowerPacT J-frame series often replaces legacy Square D breakers of similar amperage and mounting style. However, you must verify that the physical dimensions, unit-mount configuration, and interrupting ratings match your existing enclosure requirements before retrofitting.
What precautions should be taken before adjusting the magnetic trip settings?
Always de-energize the circuit before making any adjustments to the trip unit. Use the appropriate tools to change the dial settings and verify that the new instantaneous trip point aligns with your coordination study to prevent nuisance tripping or inadequate equipment protection.
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