Square D LAP36250MB - 250 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Square D LAP36250MB is a rugged 250 A, 600 V, 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Built to handle the demands of residential, commercial, and light industrial environments, this device delivers consistent protection when it matters most.

• Secure bolt-on mounting ensures a rigid, vibration‑resistant bus connection, maintaining electrical integrity even in busy panels and elevated service loads.
• Thermal-magnetic trip unit combines precise heat sensing with immediate magnetic response for stable, repeatable protection against both overloads and short circuits.
• OEM‑compatible design is intended to pair with matching Square D OEM load centers and panelboards for seamless installation and proper trip coordination across the system.
• 3-pole configuration provides balanced protection for three‑phase circuits, making it suitable for commercial and light industrial applications that rely on reliable three‑phase distribution.

Key specifications at a glance

• Manufacturer: Square D
• Part number: LAP36250MB
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 250 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose the LAP36250MB? It’s not just a breaker—it’s a reliable guardian for your electrical infrastructure. The bolt-on design minimizes connection loss and movement over time, while the thermal-magnetic trip mechanism delivers accurate protection that's predictable across load variations and fault conditions. This makes it a solid choice for panel installations where dependable performance and easy integration with existing OEM panels are essential.

Ideal use cases

Use the LAP36250MB to protect three-phase branch circuits in panelboards and load centers in commercial spaces, light industrial facilities, and residential settings that require robust three‑pole protection. It serves well as a main or feeder break for three-phase equipment, or as a reliable replacement in compatible Square D panel systems where a bolted connection and precise tripping behavior are priorities.

Practical guidance

• Verify compatibility with your existing Square D panelboard or load center to ensure proper trip coordination and physical fit.
• Prepare clean, unobstructed mounting surfaces to maximize the benefits of the bolt-on connection.
• Install per manufacturer guidelines and label the circuit clearly to assist future maintenance and safety checks.