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Square D LAP36225MB Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
Square D
LAP36225MB
Molded Case Circuit Breaker
Brand
Square D
SKU
LAP36225MB
Quantity
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Square D LAP36225MB - 225A 3 Pole Molded Case Circuit Breaker
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Square D LAP36225MB - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | LAP36225MB |
| Series | LAP |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | LAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Switchboards, Motor Control Centers, Control Panels |
| 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 | Lugs (Load Side) |
| 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, Visual Trip Indicator, Short Handle |
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Square D LAP36225MB - 225A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | LAP36225MB-R |
| Series | LAP |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | LAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Switchboards, Motor Control Centers, Control Panels |
| 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 | Lugs (Load Side) |
| 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, Visual Trip Indicator, Short Handle |
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Description
Built for demanding environments, the Square D LAP36225MB is a 3-pole, 225A molded case circuit breaker. It provides robust thermal-magnetic (LI) protection with adjustable magnetic trip settings. Designed for unit mounting, this breaker fits Square D switchboards and motor control centers. The MB catalog suffix indicates a short handle, allowing panel doors to close properly in shallow enclosures. It delivers a 30kAIC rating at 480VAC and includes load-side lugs for secure connections.Specifications
| Brand | Square D |
|---|---|
| Part Number | LAP36225MB |
| Series | LAP |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | LAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Switchboards, Motor Control Centers, Control Panels |
| 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 | Lugs (Load Side) |
| 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, Visual Trip Indicator, Short Handle |
Product FAQs
6 answersWhat does the MB suffix indicate on the LAP36225MB catalog number?
The MB suffix designates a short operating handle. This low-profile handle design provides extra clearance, ensuring that panel doors and enclosure covers close properly in tight switchboards or control panels.
Can the LAP36225MB replace older Square D L-frame breakers?
Yes, this unit-mount breaker is dimensionally compatible with many legacy Square D enclosures and can often serve as a direct drop-in replacement for older LAL or LHL series circuit breakers in switchboards and motor control centers.
What are the wire size limits for the lugs on this 225A breaker?
The standard lugs accommodate either one 1 AWG to 600 kcmil wire or two 1 AWG to 250 kcmil wires per phase. The terminals are rated for both aluminum and copper conductors.
What type of trip unit is installed in the LAP36225MB?
It features a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions. The thermal overload protection is fixed, while the instantaneous magnetic short-circuit trip is adjustable to help coordinate with downstream devices.
Is this breaker designed for I-Line panelboards or standard unit mounting?
The LAP36225MB is a bolt-on, unit-mount circuit breaker. It is designed to be fastened directly to a backpan or mounting plate in control panels and switchboards, rather than plugging into an I-Line bus system.
How can I safely test the mechanical trip linkage on this breaker?
You can use the built-in push-to-trip button located on the face of the breaker. This allows you to manually actuate the tripping mechanism and verify mechanical operation without exposing yourself to live electrical parts.
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Reviews
Review summary
Customers rate this product 4.0 out of 5 based on 1 review.
Total 5 star reviews: 0 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
1 review
- MKMark K.ReviewingSquare D LAP36400MB - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars2/21/17LAP36400MB
Great price, quick delivery, minor cosmetic and surface blemishes but functionally perfect.