Square D LXL36125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Quantity
Square D LXL36125 - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
The LXL36125 is a 3-pole, 125A MCCB from Square D's legacy L-Frame series. It utilizes a Micrologic electronic trip unit for highly accurate commercial power protection. This unit-mount breaker installs into Square D switchboards and L-Frame enclosures. It maintains existing setups and is succeeded by the PowerPacT H-Frame for retrofits. Rated 65kAIC at 480V, it features adjustable LSI trip settings for superior system coordination compared to standard thermal-magnetic alternatives.Specifications
| Brand | Square D |
|---|---|
| Part Number | LXL36125 |
| Series | LXL |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 35kA @ 600Y/347VAC, 35kA @ 600VAC |
| Amperage Range | 62.5-125A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D L-Frame Enclosures, Switchboards |
| Wire Gauge | (1) 1 AWG-600 kcmil or (2) 1 AWG-250 kcmil (Al/Cu) |
| Max Wire | 600 kcmil (1 conductor) or 250 kcmil (2 conductors) |
| Min Wire | 1 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Micrologic Standard Function Trip Unit (Series B) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, HACR Rated |
Product FAQs
4 answersWhat do the LSI functions on the LXL36125 Micrologic trip unit control?
LSI stands for Long-Time, Short-Time, and Instantaneous trip functions. The Long-Time setting protects against overloads, Short-Time allows a slight delay for downstream breaker coordination during a fault, and Instantaneous provides immediate tripping during high-level short circuits.
Is the Square D LXL36125 still in active production?
The LXL36125 is a legacy L-Frame molded case circuit breaker. For modern retrofits and upgrades, Schneider Electric replaces this series with the PowerPacT H-Frame, such as the HGL or HJL series, depending on your required fault ratings.
Can I install the LXL36125 in an I-Line panelboard?
No, the LXL36125 is a unit-mount circuit breaker designed for standard switchboards and Square D L-Frame enclosures. For I-Line panelboard applications, an I-Line specific breaker, such as the LXIL series, is required.
What is the tightening torque for the standard lugs on the LXL36125?
The standard mechanical lugs require a tightening torque of 372 lb-in (42 N.m) for both single-conductor and dual-conductor installations.
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