Free Shipping Over $99
Square D MGL36350 Molded Case Circuit Breaker
- 350A
- 3 Pole
- Unit Mount
Square D
MGL36350
Molded Case Circuit Breaker
Brand
Square D
SKU
MGL36350
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D MGL36350 - 350A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
300A 3 Pole Molded Case Circuit Breaker
500A 3 Pole Molded Case Circuit Breaker
600A 3 Pole Molded Case Circuit Breaker
Description
Engineered for demanding industrial applications, the Square D MGL36350 is a 3-pole, 350A PowerPacT M-Frame MCCB. It utilizes an ET 1.0 electronic trip unit to deliver highly accurate long-time and instantaneous (LI) protection. This unit-mount breaker is built for Square D switchboards and motor control centers. Note that this model is replaced by the LGL36400, which requires a retrofit. Delivering 65kAIC at 240VAC, it handles high fault currents with ease.Specifications
| Brand | Square D |
|---|---|
| Series | MGL |
| Amperage | 350A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Frame Type | MGL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| 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, Padlock Attachment, Rotary Handle, Lug Kits |
|---|---|
| Accessories | Line and Load Lugs Included (AL800M23K) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, 80% Rated, Mercury Free, PVC Free, RoHS Compliant, Non-Interchangeable Trip, True RMS Sensing |
Product FAQs
10 answersCan the Square D MGL36350 be reverse fed?
Yes. PowerPacT M-frame circuit breakers, including the MGL36350, do not have restrictive line and load markings and can be safely reverse fed or backfed in your application.
Is the MGL36350 rated for 100 percent continuous current?
No, this breaker carries a standard 80 percent continuous current rating.
What lugs are included standard with this breaker?
The MGL36350 comes standard with line and load side lugs, typically part number AL800M23K, which accept three 3/0 AWG to 500 kcmil aluminum or copper wires per phase.
What type of trip unit is installed in the MGL36350?
It features a basic ET 1.0 electronic trip unit. This provides long-time and instantaneous (LI) protection with a fixed thermal setting and an adjustable magnetic trip.
What equipment is the MGL36350 designed to be installed in?
This unit-mount breaker is designed for use in Square D switchboards, motor control centers, and individual enclosures.
Is there a direct replacement for the MGL36350?
The PowerPacT L-frame series, such as the LGL36400, is often used as a modern replacement. However, L-frame breakers have different dimensions and will require a retrofit kit or panel modifications to fit in place of an M-frame breaker.
Does this breaker mount onto an I-Line panelboard bus?
No, the MGL36350 is a unit-mount, feed-thru circuit breaker. It is designed to be bolted to a backpan and wired with cables via lugs, rather than plugging directly into an I-Line bussing system.
Can I adjust the instantaneous trip setting on the MGL36350?
Yes, the ET 1.0 electronic trip unit features an adjustable magnetic trip dial, allowing you to fine-tune the instantaneous protection to match your specific load requirements.
What is the maximum frame rating for this breaker family?
The MGL36350 is part of the Square D PowerPacT M-frame family, which has a maximum frame rating of 800 amps.
Can I swap the trip unit on the MGL36350 for a different model?
No, the ET 1.0 electronic trip unit on this M-frame breaker is factory sealed and non-interchangeable.
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.