Schneider Electric LK4MU3N - 200A, Disconnect Switch

The Schneider Electric LK4MU3N is a rugged 200A disconnect switch purpose-built for industrial and commercial environments where safe electrical isolation is non-negotiable. Designed to support lockout/tagout procedures and deliver reliable disconnection under load, this switch helps protect personnel and critical equipment during maintenance, testing, and emergencies.

Why choose the LK4MU3N 200A Disconnect Switch

• 200A amperage rating accommodates heavy-duty feeders and motor circuits, providing a dedicated isolation point for high-current systems.
• Lockout/tagout readiness supports standard safety protocols, enabling compliant energy isolation to safeguard workers during service and repairs.
• Dependable under-load disconnection ensures circuits can be safely de-energized even when connected equipment is energized, reducing arc-flash risk and equipment wear.
• Durable industrial design built to withstand the rigors of busy facilities, offering long-term reliability in harsh environments and heavy-use scenarios.
• Straightforward integration purposefully engineered to fit into commercial and industrial electrical layouts, simplifying installation and maintenance planning.

Practical applications and use cases

Ideal for coordinating safe maintenance across manufacturing lines, utility rooms, and distribution panels. Use the LK4MU3N as the primary isolation device for motor feeders, feeders to critical equipment, or as a dedicated shutdown point in control circuits. In facilities that prioritize safety protocols, this disconnect switch becomes a trusted component for routine lockout/tagout procedures and emergency response planning.

What problems this solves

• Prevents accidental energization during maintenance by providing a clear, verifiable isolation point.
• Supports compliant lockout/tagout practices, helping facilities meet safety standards and reduce downtime due to unsafe work conditions.
• Offers reliable disconnection under load, minimizing arcing risk and protecting both personnel and equipment during service work.

Specifications

• Amperage Rating: 200A
• Product Type: Disconnect Switch
• Brand: Schneider Electric
• Model: LK4MU3N

Who is this for?

Manufacturers, facilities managers, and electrical contractors who require a reliable, code-conscious isolation solution for high-current systems. If you manage electrical safety in industrial or commercial settings and need a dedicated disconnect with robust durability, the LK4MU3N is designed to meet those demands while supporting best-practice safety workflows.

Tips for best results

Plan installations with a clear isolation point in mind, pairing the LK4MU3N with proper lockout/tagout practices and routine verification. Regular inspection of mechanical action and contact integrity will help maintain dependable performance over the switch’s service life.