Consistent quality. We’ve added similar items to our regular reorder list.
MRO · Reorder
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Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
| Part Number | LGL36400CU31X |
| Amperes | 400 |
| Poles | 3 |
| Voltage | 600 |
| Product Type | circuit-breaker |
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Meet the Square D LGL36400CU31X — a robust 400 A, 3-pole, 600 V circuit breaker designed to protect panelboards, load centers, and electrical distribution networks. Built for reliability in demanding environments, this unit delivers precise interruption and dependable protection when it matters most.
This model is purpose-built for retrofit work and ongoing maintenance planning where keeping the exact part number matters. By choosing LGL36400CU31X, you simplify spares management and reduce the risk of compatibility issues during upgrades or replacements.
Before installation, verify that the panelboards or distribution equipment are designed to accept a 3-pole, 400 A, 600 V circuit breaker of the Square D lineage. Maintain documentation showing the LGL36400CU31X part number to support future maintenance and audits. For compatibility checks or to confirm fit with your specific installation, feel free to reach out—we’ll help verify the match to keep your project on track.
Available from AmpState. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.
Contact sales@ampstate.com
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General feedback we often hear from customers purchasing industrial electrical parts.
Consistent quality. We’ve added similar items to our regular reorder list.
MRO · Reorder
Support is responsive when we have questions about fit or application.
Purchasing · Quick answers
A reliable choice when we need industrial parts on short notice.
Service · Urgent replacement