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Square D LLM36000S40X 400A 3-Pole 600 V Circuit Breaker
Regular price
$19,460.00
Sale price
$19,460.00
Regular price
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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.
Square D LLM36000S40X 400A 3-Pole 600 V Circuit Breaker
Regular price
$19,460.00
Sale price
$19,460.00
Regular price
Unit price
Product description
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The Square D LLM36000S40X is a robust, industrial-grade circuit breaker designed to safeguard large 3-phase power systems. With a 400 A current rating, 3 poles, and a 600 V working voltage, this unit provides reliable protection for demanding electrical distributions. Part Number LLM36000S40X, it belongs to the trusted Square D LLM family, delivering consistent performance in installation panels, switchgear, and feeders.
Key specifications
- Current rating: 400 A
- Poles: 3 (three-phase protection)
- Voltage rating: 600 V
- Product family: Square D LLM molded case circuit breaker
- Mounting/compatibility: designed for Square D panels and bus systems for straightforward replacement and dependable operation
- Trip technology: thermal-magnetic mechanism for reliable overload protection
Why this 3-pole model matters
For three-phase systems, a dedicated 3-pole breaker like the LLM36000S40X ensures all conductors trip together on fault conditions, reducing arc flash risk and protecting motors, feeders, and downstream equipment. The 400 A rating is well-suited for substantial feeders and medium-to-large loads, while the 600 V rating supports common industrial voltages. This combination simplifies panel design and enhances system reliability in industrial environments, making it a solid choice for new installations or replacements in Square D installations.
Ideal use cases
- Main disconnect or feeder protection in industrial control panels
- Protection for large motors, air handling units, conveyors, and other 3-phase equipment
- Replacement for aging or undersized breakers within Square D electrical distributions
Installation and practical considerations
- Ensure your panel supports 600 V operation and is compatible with LLM series breakers before installation
- Secure terminal connections according to the panel’s guidelines and use proper torque as specified in the documentation
- Regularly inspect for signs of wear, overheating, or tripping trends to determine replacement timing
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What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
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Lead time was reasonable and the part matched expectations when it arrived.
Procurement · Ontario
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Good value for industrial use. Customers mention easy installation.
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