Square D IF361001021 100A 3-Pole 600 V Circuit Breaker

Meet the Square D IF361001021 100A 3-Pole 600 V Circuit Breaker — a purpose-built protective device for demanding three-phase power systems. Engineered to safely interrupt fault currents, this breaker helps shield wiring, components, and equipment from damage while keeping your panel energized with reliable control.

Designed for three-pole, 600 V applications, it delivers a solid 100 A rating to handle mid-to-high-load circuits common in commercial and light industrial environments. This part, identified by IF361001021, anchors your protection strategy with a trusted Square D build that electricians rely on for consistent performance.

• Current rating: 100 A
• Poles: 3 (three-pole design for three-phase circuits)
• Voltage rating: 600 V
• Part number: IF361001021
• Brand: Square D

Where this model shines: use it in compatible Square D panels to protect feeders and equipment in three-phase distributions, from motors and compressors to HVAC and manufacturing loads. Its reliable trip mechanism and robust construction are built around real-world use, helping facilities minimize downtime and manage fault scenarios more effectively than smaller, single-pole breakers.

Practical considerations and tips for use:

• Choose the right panel compatibility: install in panels designed for 3-pole 600 V protection to ensure proper fit and safe operation.
• Safety first: de-energize the system and follow standard electrical safety practices during installation and maintenance.
• Stock for service readiness: part number IF361001021 is a clear identifier for ordering and inventory to minimize downtime during panel maintenance or replacements.

Whether you're upgrading an existing distribution setup or stocking a dependable spare for critical infrastructure, the Square D IF361001021 100A 3-Pole 600 V Circuit Breaker provides clear protection with a recognized name you can trust. It answers the question electricians ask when protecting three-phase systems: how to reliably interrupt high-current faults at 600 V without compromising safety or panel integrity.