Product Description
The Schneider Electric LV434128 Compact NSX400F circuit breaker is a robust, fixed three-pole unit designed for reliable circuit protection in demanding electrical distribution systems. This 400A rated breaker features a high breaking capacity of 36kA at 415VAC, ensuring effective fault interruption. Equipped with a Micrologic 2.3 electronic trip unit, it provides precise overload and short-circuit protection settings for optimized performance and coordination. The LV434128 is built for durability and long-term operation, offering essential protection for equipment and personnel in industrial and commercial applications. Installation is straightforward, and its compact design allows for efficient use of space within electrical panels.
Is Your Device Showing These Signs?
The Schneider LV434128 Compact NSX MCCB commonly experiences issues such as nuisance tripping due to incorrect overload settings or faulty trip units. Inspection of the thermal-magnetic trip unit is crucial, along with verification of the current settings against the application's load profile. Contact erosion on the main contacts leads to increased resistance and overheating; contact replacement or breaker refurbishment resolves this. Communication failures in Micrologic trip units necessitate troubleshooting the Modbus or Ethernet connections, including cable integrity and network configuration. Mechanical failures, such as a jammed operating mechanism, require disassembly, cleaning, and lubrication of the internal components.
Technical specifications
The Schneider Electric LV434128 Compact NSX400F circuit breaker is a robust, fixed three-pole device engineered for comprehensive circuit protection in industrial and commercial power distribution systems. Rated at 400A, it features a high breaking capacity of 36kA at 415VAC, ensuring reliable performance under fault conditions. The integrated Micrologic 2.3 trip unit provides adjustable overload and short-circuit protection settings, enabling precise customization to specific load requirements. This circuit breaker is designed for ease of installation and maintenance, incorporating rotary handle operation and clear trip indication. Compliance with IEC 60947-2 standards guarantees adherence to international safety and performance benchmarks.
Our Repair Process for the
LV434128
Our repair process for the Schneider LV434128 Compact NSX MCCB begins with a thorough inspection of the thermal-magnetic trip unit, verifying current settings against the application's load profile to address nuisance tripping. We then examine the main contacts for erosion, proceeding with contact replacement or breaker refurbishment to eliminate overheating issues. For Micrologic trip units, we troubleshoot communication failures by inspecting Modbus or Ethernet connections, ensuring cable integrity and proper network configuration. Finally, mechanical failures involving a jammed operating mechanism are resolved through disassembly, cleaning, and lubrication of all internal components, guaranteeing proper functionality.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY