Square D LAB36350 Molded Case Circuit Breaker
- 350A
- 3 Pole
- I-Line
Square D
LAB36350
Molded Case Circuit Breaker
Brand
Square D
SKU
LAB36350
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D LAB36350 - 350A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
350A 3 Pole Molded Case Circuit Breaker
350A 3 Pole Molded Case Circuit Breaker
3 Pole Circuit Breaker
Description
Delivering 350A of thermal-magnetic protection, the Square D LAB36350 is a 3-pole molded case circuit breaker built for commercial and industrial environments. It features a bolt-on connection for secure integration into high-demand electrical systems. This unit is engineered for Square D I-Line panelboards and switchboards. For modern replacements, it crosses over to the LGA36350. Rated for 600VAC, it provides a 42kAIC interrupting capacity at 240V and includes a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | LAB36350 |
| Series | LAB |
| Amperage | 350A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | LAB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Mercury Free, PVC Free |
Product FAQs
4 answersHow does the LAB36350 connect to compatible panelboards?
It mounts directly to the busbar of Square D I-Line panelboards and switchboards using an I-Line style plug-in connection on the line side, eliminating the need for line-side wire terminations. Mechanical lugs are provided on the load side.
What does the LI trip function code indicate on this breaker?
The LI designation means the thermal-magnetic trip unit provides Long-Time (L) protection for overloads and Instantaneous (I) protection for short circuits. The thermal element is fixed, while the magnetic element is adjustable to suit specific application needs.
Is the LAB36350 part of a current or legacy product line?
The LAB36350 is a legacy L-frame molded case circuit breaker from Square D. While it is part of an older series, it remains fully compatible with standard I-Line panelboards and switchboards.
What safety precautions should be taken before installing this I-Line breaker?
Always de-energize the panelboard or switchboard before installing or removing the breaker. Ensure the I-Line jaws are properly aligned with the busbar and that load-side lug connections are torqued to the manufacturer's specifications to prevent arcing or overheating.
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.