Square D | LHL26400V | Circuit Breaker | 400A | 2-Pole | 26400V

Square D LHL26400V Circuit Breaker is a high‑voltage, industrial protection device designed for demanding power systems. With a 400A rating and two poles, this breaker delivers reliable interruption and precise control for critical feeders at up to 26,400 volts. Built for maintenance, retrofit, and replacement projects, it’s ready to slot into systems that require exact specifications and dependable performance.

Key specifications at a glance

• Amperage: 400A
• Poles: 2-Pole
• Voltage rating: 26,400V (26400V)
• Brand: Square D
• Part reference: LHL26400V

Why this Square D breaker stands out

• The part number LHL26400V is the most reliable reference for ensuring the correct fit, rating, and trip characteristics in your equipment.
• Industrial-grade reliability: Square D has a long track record of robust design for challenging environments, delivering consistent protection for feeders and main circuits.
• Specialized high-voltage protection: Designed to operate in high-voltage installations, this 2‑pole breaker helps isolate faults and safeguard downstream equipment with precision.

Ideal use cases

• Retrofits in legacy switchgear where an exact LHL26400V replacement is required to restore original protection levels.
• Maintenance replacements in facilities with 26,400-volt distribution systems, ensuring continuity of service while meeting electrical codes.
• New or upgraded installations that demand a 400A capacity and a two-pole configuration for reliable, coordinated protection.
• Industrial settings such as manufacturing floors, large motors, and feeder circuits where stable, predictable tripping is essential.

Fitment and compatibility tips

Before purchasing, confirm that the installation environment, mounting footprint, and panel compatibility align with the LHL26400V designation. The part number is the most dependable reference for matching the exact electrical characteristics, terminals, and mounting style required by your equipment. If you’re replacing an existing unit, verify that the replacement’s pole count, voltage rating, and amperage match the original to avoid compatibility issues.

Installation and maintenance considerations

• Engage a qualified electrician to verify electrical clearances, torque requirements, and interlock compliance during installation.
• Inspect the device for any shipping damage or corrosion before installation; ensure connections are clean and tight to maintain optimal performance.
• Plan for routine inspection of the breaker contacts and enclosure integrity as part of your preventive maintenance schedule.

Note: Always confirm fit and ratings against your specific equipment before ordering. The LHL26400V part number provides the most reliable path to correct compatibility and performance in your high‑voltage protection scheme.