Square D | 989316 | Circuit Breaker | 100A | 3-Pole | 240V | Bolt-On

Introducing the Square D 989316 circuit breaker—a reliable 100-amp, 3-pole, 240-volt bolt-on solution designed for maintenance, retrofit, and replacement projects in 3-phase electrical systems.

Key features at a glance:

• Amperage: 100A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On

Why this matters:

• Compatibility reliability: The 989316 part number is your best reference for matching panels and devices. Always confirm fit and ratings before ordering to avoid mismatches in service panels or enclosures.
• Three-phase protection: The 3-pole configuration provides protection across all live conductors in a 240V, 3-phase system, helping prevent electrical faults from escalating.
• Retrofit and replacement path: When a breaker fails or your panel requires an up-to-date device with the same electrical characteristics, this bolt-on option offers straightforward installation for compatible Square D panels.

Real-world use cases:

• Commercial electrical rooms upgrading panel protection for a 3-phase motor drive or large 240V circuits commonly found in light industrial settings.
• Industrial maintenance tasks where a direct bolt-on replacement minimizes downtime and keeps panel labeling consistent with existing gear.
• Legacy installations where the existing breaker is no longer available; using the exact part number helps ensure compatibility within the Square D ecosystem.

Installation notes and best practices:

• Before ordering, verify that your panel supports bolt-on breakers of the 989316 style and that the 100A, 3-pole 240V ratings match your load requirements.
• Turn off power to the panel, follow manufacturer guidelines, and ensure proper torque on the mounting screws during bolt-on installation.
• Label the new breaker in your panel schedule to maintain accurate electrical documentation for future maintenance or inspections.

In short, the Square D 989316 bolt-on circuit breaker delivers dependable 100A protection for 3-phase 240V service, with a straightforward retrofit path and a clear reference point for compatibility in commercial and industrial panels.