Square D Q1B3100 100A 3P 240V Circuit Breaker, Bolt-On | AmpState

Meet the Square D Q1B3100—a 100 A, 3-pole, 240 V bolt-on circuit breaker designed for reliable protection in panelboards, load centers, and electrical distribution networks. This unit is ideal for retrofit work and maintenance planning where keeping the exact part number intact matters for service continuity and stock consistency.

• Bolt-on installation provides a secure, field-service friendly mounting in compatible enclosures, reducing installation time and ensuring a robust connection.
• Three-pole, 100 A configuration protects three-phase circuits, supporting common commercial and industrial power layouts with synchronized protection across feeders.
• 240 V operation aligns with typical distribution systems and equipment ratings found in many facilities.
• Maintenance & retrofit ready a practical choice for spare-part inventories and projects where exact part numbers must be preserved for future service.
• Part Number Q1B3100 backed by AmpState as a dependable option; if you’re unsure about fit, message us and we’ll help you confirm compatibility.

Why this breaker stands out in real-world applications: it’s not just about circuit protection—it’s about predictable replacements, faster service windows, and staying aligned with manufacturer guidance in your electrical distribution system. The bolt-on design minimizes panel modifications during retrofit projects, while the 3P arrangement ensures robust protection for three-phase feeders. This model integrates seamlessly with panelboards, load centers, and distribution panels that accept Q1B3100-style breakers, helping you maintain consistency across your electrical infrastructure.

• Ideal for: facilities managers, electrical contractors, and distributors who perform panelboard retrofits, service upgrades, or ongoing maintenance.
• Use case scenarios: upgrading to 100 A three-phase protection, stocking exact-part replacements for critical equipment, performing scheduled maintenance without changing hardware APIs.
• Practical tip: keep the exact part number in your maintenance manual and confirm enclosure compatibility before ordering to ensure a seamless retrofit.

If you need help confirming fit or compatibility, AmpState is ready to assist—just send a message and we’ll verify that the Square D Q1B3100 is the right match for your panelboards, load centers, and distribution setups.