Professional-grade feel. No issues reported during commissioning.
Controls · Commissioning
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| Amperes | 400 |
| Poles | 3 |
| Voltage | 240 |
| Product Type | 400A |
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Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
The LSB320400E is a purpose-built industrial circuit breaker designed for reliable protection in maintenance, retrofit, and replacement projects where matching specs matter. With a robust 400A rating and a 3-Pole (three-phase) configuration operating at 240V, this bolt-on device is built to integrate seamlessly into compatible panel systems and feeders.
Ideal for three-phase electrical environments, the LSB320400E shines in applications like panel upgrades, equipment protection, and service replacements where exact specs are required. Its bolt-on design supports secure mounting in approved enclosures, helping to minimize installation time and downtime during maintenance or retrofit projects.
Practical tips for use:
Keep your three-phase distribution protected with a bolt-on solution that’s designed to align with established specifications and replacement workflows. The LSB320400E delivers targeted, dependable protection where it matters most in industrial electrical systems.
Contact sales@ampstate.com
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General feedback we often hear from customers purchasing industrial electrical parts.
Professional-grade feel. No issues reported during commissioning.
Controls · Commissioning
Arrived in good condition and helped keep our project on schedule.
Project team · Contractor
Exactly what most contractors expect from an industrial supplier.
Electrical · Commercial
Fast industrial sourcing support
Email us at sales@ampstate.com for pricing, availability, alternates, and project support.
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