Schneider LAL36MB Series 3-Pol...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,434.14
Schneider LAL36MB Series Molded Case Circuit Breakers with Mounting Base (300A–400A)

Schneider LAL36MB Series 3-Pole Molded Case Circuit Breaker with Mounting Base 300A-400A HACR Rated

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Model: LAL36300MB

In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,434.14
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Schneider LAL36MB Series 3-Pole Molded Case Circuit Breaker with Mounting Base 300A-400A HACR Rated

Professional HACR-Rated Circuit Protection for Commercial and Industrial Applications

The Schneider LAL36MB Series delivers reliable 3-pole molded case circuit breaker protection with integrated mounting base for 300A-400A applications. This HACR-rated unit features thermal-magnetic trip technology and short lever operation, providing dependable overcurrent protection in a compact 6" x 11" x 5.84" profile. Designed for unit mount installation, this circuit breaker combines Schneider's proven reliability with halogen-free construction and sustainable packaging practices.

Professional Features & Benefits

  • 300A-400A Current Rating: Handles high-amperage loads with reliable overcurrent protection for demanding commercial and industrial applications.
  • HACR Rated Design: Specifically certified for heating, air conditioning, and refrigeration equipment, ensuring safe operation with motor loads and HVAC systems.
  • Thermal-Magnetic Trip Technology: Provides precise and reliable trip characteristics with both thermal overload and magnetic short-circuit protection.
  • 3-Pole Configuration: Delivers comprehensive three-phase protection with simultaneous tripping across all poles for balanced system protection.
  • Compact Profile (6" x 11" x 5.84"): Space-efficient design maximizes panel capacity while maintaining full protection capabilities.
  • Unit Mount with Base: Integrated mounting base simplifies installation and provides secure mechanical connection.
  • 15-Year Average Life Duration: Long service life reduces maintenance costs and ensures reliable long-term operation.

Technical Specifications

  • Average Life Duration: 15 year(s)
  • Carbon Footprint: 1160.069476
  • Carbon Footprint Kg Co2 Eq Total Life Cycle: 1160.069476
  • China Rohs In Scope: No
  • Circuit Breaker Application: HACR rated
  • Country Of Origin: Mexico
  • Device Type: LV equipment - Low voltage circuit breaker
  • Distribution Carbon Footprint: 1.966271581
  • End Of Life Carbon Footprint: 10.30297115
  • Environmental Disclosure: ENVPEP1410004EN
  • Eoli Availability Display: No need of specific recycling operations
  • Eu Rohs Directive: Compliant with Exemptions
  • Field Service Division: PPIBS
  • Function Option: Standard
  • Function Option Id: STANDARD
  • Green Premium Status For Reporting: Green Premium product
  • Halogen Content Performance: Halogen free plastic parts product
  • Halogen Free Status: Halogen free plastic parts product
  • Halogene Performance: Halogen free plastic parts product
  • Installation Carbon Footprint: 1.896790469
  • Legacy Weee Scope: In
  • Manufacturing Carbon Footprint: 43.82880551
  • Mercury Free: Yes
  • Mounting Mode: unit mount
  • Operator Profile: short lever
  • Packaging Made With Recycled Cardboard: Yes
  • Packaging Without Single Use Plastic: Yes
  • Poles Description: 3P
  • Product Availability: Stock - Normally stocked in distribution facility
  • Product Contributes To Saved And Avoided Emissions: No
  • Product Depth: 5.84 in
  • Product Height: 11 in
  • Product Or Component Type: circuit breaker
  • Product Width: 6 in
  • Reach Compliance Directive: Reference contains Substances of Very High Concern above the threshold
  • Reach Full Compliance Status: Reference contains Substances of Very High Concern above the threshold
  • Reach Full Compliance Status Id: CONTAINS_SVHC
  • Reach Regulation: Reference contains Substances of Very High Concern above the threshold
  • Recycled Metal Content At Cr Level: 0%
  • Relationshiptype: Compatible relationship
  • Return Indicator: Y
  • Returnability: Yes
  • Rohs Eur Conformity Date: 1906
  • Rohs Eur Full Compliance Status: Compliant with Exemptions
  • Rohs Eur Full Compliance Status Id: COMPLIANT_WITH_EXEMPTIONS
  • Rohs Eur In Scope: Yes
  • Rohs Eur Status: Compliant with Exemptions
  • Rohs Exemption Information: Yes
  • Scope Perimeter: Outside of Europe
  • Sustainable Packaging: Yes
  • Take Back: No
  • Terminal Identifier: AL400LA
  • Tier: 3
  • Tier Id: 3
  • Total Lifecycle Carbon Footprint: 1 160 kg CO2 eq.
  • Traceability: Yes
  • Trip Unit Technology: thermal-magnetic
  • Use Carbon Footprint: 1102.074638
  • With Recycled Cardboard: Yes
  • Without Single Use Plastic: Yes
  • Department: Electrical

Professional Applications

  • Commercial HVAC Systems and Equipment
  • Industrial Motor Control Centers
  • Manufacturing Facility Power Distribution
  • Refrigeration and Cooling Systems
  • Multi-Unit Residential Properties
  • Retail and Office Building Electrical Systems
  • Data Centers and Critical Infrastructure

Why Choose Schneider Quality?

Schneider LAL36MB Series circuit breakers deliver proven reliability with 15-year average life duration and Green Premium environmental certification. The halogen-free construction, sustainable packaging with recycled cardboard, and mercury-free design demonstrate commitment to environmental responsibility while maintaining the robust protection performance required for critical electrical applications.

Manufacturer Resources

Product Specs

Average Life Duration:
15 year(s)
Carbon Footprint:
1160.069476
Carbon Footprint Kg Co2 Eq Total Life Cycle:
1160.069476
China Rohs In Scope:
No
Circuit Breaker Application:
HACR rated
Country Of Origin:
Mexico
Device Type:
LV equipment - Low voltage circuit breaker
Distribution Carbon Footprint:
1.966271581
End Of Life Carbon Footprint:
10.30297115
Environmental Disclosure:
ENVPEP1410004EN
Eoli Availability Display:
No need of specific recycling operations
Eu Rohs Directive:
Compliant with Exemptions
Field Service Division:
PPIBS
Function Option:
Standard
Green Premium Status For Reporting:
Green Premium product
Halogen Content Performance:
Halogen free plastic parts product
Installation Carbon Footprint:
1.896790469
Legacy Weee Scope:
In
Manufacturing Carbon Footprint:
43.82880551
Mercury Free:
Yes
Mounting Mode:
unit mount
Operator Profile:
short lever
Packaging Made With Recycled Cardboard:
Yes
Packaging Without Single Use Plastic:
Yes
Poles Description:
3P
Product Availability:
Stock - Normally stocked in distribution facility
Product Contributes To Saved And Avoided Emissions:
No
Product Depth:
5.84 in
Product Height:
11 in
Product Or Component Type:
circuit breaker
Product Width:
6 in
Reach Full Compliance Status:
Reference contains Substances of Very High Concern above the threshold
Recycled Metal Content At Cr Level:
0%
Relationshiptype:
Compatible relationship
Rohs Eur Conformity Date:
1906
Rohs Exemption Information:
Yes
Sustainable Packaging:
Yes
Take Back:
No
Terminal Identifier:
AL400LA
Tier:
3
Total Lifecycle Carbon Footprint:
1 160 kg CO2 eq.
Traceability:
Yes
Trip Unit Technology:
thermal-magnetic
Use Carbon Footprint:
1102.074638
With Recycled Cardboard:
Yes
Without Single Use Plastic:
Yes
Department:
Electrical
Product Type:
Circuit Breaker
Product Group:
Circuit Breakers

Schneider LAL36300MB – Frequently Asked Questions

1) What amp ratings does the Schneider LAL36MB 3-pole breaker come in?
Two ratings are offered in the LAL36MB series: 300A as LAL36300MB and 400A as LAL36400MB. Both are 3-pole thermal-magnetic molded case breakers supplied with a mounting base. Order by the full part number, since the only difference between them is the trip rating.
2) Will a Schneider LAL36MB breaker fit in my enclosure? What are the dimensions?
Plan on 6 x 11 x 5.84 inches for the breaker itself (width 6 in, height 11 in, depth 5.84 in). That depth matters most, because the unit mounting base adds nothing to the footprint but the short lever operator needs clear handle swing in front of the dead front. Check those three numbers against your cabinet gutter space before you commit.
3) Can I use this Schneider breaker to feed a rooftop HVAC unit or a compressor?
Yes. The LAL36MB is HACR rated, which is the rating required to serve heating, air conditioning and refrigeration equipment with motor loads. Combined with 3-pole construction it suits three-phase rooftop units, chillers and compressor racks.
4) Does the LAL36MB come with the mounting base, or do I order that separately?
The base is included. The MB suffix on LAL36300MB and LAL36400MB means the breaker ships as a unit mount assembly with its mounting base, so you are not sourcing a separate mounting kit to land it in the enclosure.
5) Is the Eaton BAB1010 a substitute for a Schneider LAL36400MB?
No. The Schneider LAL36MB series is a 3-pole molded case circuit breaker rated 300A to 400A with an integrated mounting base, thermal-magnetic trip, and unit mount installation. The Eaton BAB1010 is a Quicklag bolt-on thermal-magnetic branch breaker from the BAB series - it shares the thermal-magnetic trip principle but is a panelboard branch device, not a 300A-400A molded case feeder breaker. For a 3-phase feeder or HVAC main in the 300A-400A range, stay with the LAL36300MB or LAL36400MB.
6) What lugs do I need for the Schneider LAL36400MB, and will they take aluminum conductors?
The terminal reference for this breaker is AL400LA. The AL prefix denotes an aluminum/copper rated lug, so both Cu and Al feeders land on it. Order lugs by that identifier and size them to your conductor, since the same breaker frame is used at both 300A and 400A.
7) Thermal-magnetic or electronic trip for a 400A feeder breaker?
The LAL36MB uses a thermal-magnetic trip unit: a bimetal element for sustained overload and a magnetic element for short circuit. It is a fixed, standard function breaker, so there are no adjustable long-time or ground-fault settings. If your drawing calls for adjustable trip settings or selective coordination curves you can tune, you need an electronic trip frame instead. For straight feeder and HVAC branch protection at 300A or 400A, thermal-magnetic is the normal choice.
8) Does the Schneider LAL36MB meet green building and RoHS requirements for a LEED project?
It carries Schneider Green Premium status, uses halogen free plastic parts, and is mercury free. EU RoHS status is compliant with exemptions, and the environmental profile document reference is ENVPEP1410004EN, which is what a sustainability consultant will want on file. One caveat for anyone screening for chemicals of concern: the reference contains Substances of Very High Concern above the REACH threshold. Total life cycle carbon footprint is published at 1 160 kg CO2 eq. Packaging is recycled cardboard with no single use plastic.
9) Can I add a shunt or undervoltage release to the Schneider LAL36MB the way the Eaton NZM accessory works?
The Eaton 10250T-GR is an undervoltage release built for Eaton NZM series molded case breakers, so it is not a fit for a Schneider LAL frame. The Schneider LAL36MB series ships as a standard function device with a short lever operator and thermal-magnetic trip - if your application requires remote trip on voltage loss, that is a different breaker specification rather than an accessory carried over from another manufacturer's frame.
10) I need 400A terminal lugs - is the Eaton 2TA401K the same thing as the terminals on the Schneider LAL36MB?
They are different parts. The Schneider LAL36MB series carries terminal identifier AL400LA as part of the breaker assembly. The Eaton 2TA401K is a separate Series C 400A molded case breaker terminal accessory rated for Cu/Al conductors, intended for Eaton Series C frames. Terminal accessories are frame-specific, so a Series C terminal kit does not land on a Schneider LAL frame.
11) For a panelboard main, should I use the Schneider LAL36MB or an Eaton Pow-R-Xpress main breaker kit?
It depends on how the breaker mounts. The Eaton BK is a Pow-R-Xpress convertible main circuit breaker kit, intended to convert a panelboard to a main breaker configuration within that Eaton system. The Schneider LAL36MB series is a unit mount device with an integrated mounting base in a 6 in wide by 11 in high by 5.84 in deep envelope, so it is specified where a standalone 3-pole 300A-400A breaker is being mounted rather than dropped into an Eaton panel interior.
12) Where is the Schneider LAL36MB breaker made, and is it traceable for a government spec job?
Country of origin is Mexico, and the unit is flagged as traceable, which is what procurement asks for on public and healthcare work where lot traceability is part of the submittal package.
13) How long should a molded case breaker like this last before a facility plans to replace it?
Schneider publishes a 15 year average life duration for the LAL36MB. For an MRO plan, that is the figure to budget replacement against, though actual service life depends on load cycling and environment. There is no take-back program listed for the unit at end of life.
How fast can I get the Schneider LAL36300MB delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Schneider LAL36300MB come with a warranty?
Absolutely. The Schneider LAL36300MB is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Schneider LAL36300MB?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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