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Square D LHL36250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Square D
LHL36250
Molded Case Circuit Breaker
Brand
Square D
SKU
LHL36250
Quantity
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Square D LHL36250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D LHL36250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | LHL36250 |
| Series | LHL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 50kA @ 250VDC |
| Frame Type | LHL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D L-Frame Enclosures, Switchboards, Panelboards |
| Wire Gauge | (1) 1 AWG - 600 kcmil (Al/Cu) or (2) 1 AWG - 250 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 1 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, Handle Padlock Attachment |
|---|---|
| Accessories | Lugs (AL400LA) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Quantity
Square D LHL36250 - 250A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | LHL36250-R |
| Series | LHL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 50kA @ 250VDC |
| Frame Type | LHL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D L-Frame Enclosures, Switchboards, Panelboards |
| Wire Gauge | (1) 1 AWG - 600 kcmil (Al/Cu) or (2) 1 AWG - 250 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 1 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, Handle Padlock Attachment |
|---|---|
| Accessories | Lugs (AL400LA) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Similar Items
125A 3 Pole Molded Case Circuit Breaker
400A 3 Pole Molded Case Circuit Breaker
250A 3 Pole Molded Case Circuit Breaker
Description
Designed for robust power systems, the Square D LHL36250 is a 250A, 3-pole molded case circuit breaker with thermal-magnetic LI protection. This unit mount device is engineered to fit legacy L-Frame enclosures, panelboards, and switchboards. It is officially replaced by the JGL36250, which requires a retrofit for installation. Capable of 65kAIC at 240VAC and 25kAIC at 600VAC, it features an adjustable magnetic trip and comes standard with AL400LA lugs for secure, high-capacity connections.Specifications
| Brand | Square D |
|---|---|
| Part Number | LHL36250 |
| Series | LHL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 50kA @ 250VDC |
| Frame Type | LHL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D L-Frame Enclosures, Switchboards, Panelboards |
| Wire Gauge | (1) 1 AWG - 600 kcmil (Al/Cu) or (2) 1 AWG - 250 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 1 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, Handle Padlock Attachment |
|---|---|
| Accessories | Lugs (AL400LA) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
7 answersWhat enclosures and panelboards are compatible with the LHL36250?
The LHL36250 is a unit-mount legacy L-Frame breaker designed for use in Square D L-Frame enclosures, older switchboards, and panelboards.
What is the modern replacement for the legacy Square D LHL36250?
The LHL36250 is officially replaced by the PowerPact J-Frame JGL36250. Upgrading to the newer J-Frame will require a retrofit kit or mounting modifications.
What are the wire size requirements for the LHL36250 lugs?
The standard lugs accept either one 1 AWG to 600 kcmil aluminum or copper conductor, or two 1 AWG to 250 kcmil aluminum or copper conductors per phase.
How does the trip unit on the LHL36250 operate?
It features a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
What is the adjustable magnetic trip range for the LHL36250?
The adjustable magnetic instantaneous trip function on this 250A breaker can be set between 1250A and 2500A to coordinate with downstream devices.
Can the LHL36250 circuit breaker be reverse fed?
Yes, standard thermal-magnetic L-Frame breakers like the LHL36250 do not have line and load markings and can be reverse fed in most applications.
What maintenance is recommended for the LHL36250 trip unit?
Periodic functional testing, including manual trip testing using the push-to-trip button, is recommended to ensure the breaker operates within its specified time parameters. Lug torque should also be verified regularly.
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