Square D LHL26400 Molded Case Circuit Breaker
- 400A
- 2 Pole
- Unit Mount
Quantity
Square D LHL26400 - 400A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D LHL26400 - 400A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | LHL26400-R |
| Series | LHL |
| Amperage | 400A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| 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 Rated, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Quantity
Square D LHL26400 - 400A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | LHL26400-R |
| Series | LHL |
| Amperage | 400A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| 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 Rated, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Description
Engineered for industrial applications, the Square D LHL26400 operates as a 2-pole, 400A molded case circuit breaker featuring thermal-magnetic LI protection. This unit mount MCCB installs into compatible Square D L-Frame enclosures, switchboards, and panelboards. As a legacy component, it is commonly replaced by the newer PowerPact LGL26400 model during system upgrades. Rated for 65kAIC at 240VAC and 35kAIC at 480VAC, it provides robust high-interrupting capacity. The breaker is HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | LHL26400-R |
| Series | LHL |
| Amperage | 400A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| 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 Rated, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
4 answersWhat is the modern replacement for the legacy LHL26400 circuit breaker?
The LHL26400 is a legacy Square D L-Frame breaker. For modern panel upgrades or new installations, it is typically replaced by the PowerPact L-Frame series, such as the LGL26400, though the LHL26400 remains available for direct replacements.
What is the adjustable magnetic trip range for this 400A breaker?
The LHL26400 features a fixed thermal and adjustable magnetic trip unit (LI). The instantaneous magnetic trip can be adjusted from a low setting of 2000A to a high setting of 4000A.
What are the accepted wire sizes and lug torque specifications for the LHL26400?
This breaker comes standard with AL400LA lugs. These lugs accept either one 1 AWG to 600 kcmil wire or two 1 AWG to 250 kcmil wires (Al/Cu). The required tightening torque is 371 lb-in (42 N.m).
How is the LHL26400 mounted in a panel?
This is a unit-mount (feed-thru) circuit breaker designed to be bolted directly to the chassis or mounting pan in compatible Square D L-Frame enclosures, switchboards, and panelboards. It cannot be used in I-Line panels, which require plug-on I-Line variants.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.