Square D 9998X14 Circuit Breaker, 90A, 3-Pole, 600V

Meet the Square D 9998X14 circuit breaker—a genuine OEM protective device designed for the rigors of industrial electrical service, maintenance, and replacement projects. With a 90-amp rating, a 3-pole configuration, and a 600-volt operating capability, this breaker delivers reliable overcurrent protection for demanding 3-phase systems.

Key specifications at a glance

• Part Number: 9998X14
• Type: Circuit Breaker
• Amperage: 90 A
• Poles: 3
• Voltage: 600 V

Why this Square D breaker stands out

• OEM compatibility and fit—engineered to meet Square D standards, ensuring proper mounting, electrical connection, and performance within compatible panels and switchboards.
• Three-pole design for 3‑phase systems—provides balanced protection across all three phases, essential for motors, feeders, and other three-phase loads.
• High-current capacity for demanding loads—90 A rating supports medium-to-heavy duty circuits common in industrial facilities, reducing nuisance trips for critical equipment.
• 600-volt readiness—suitable for industrial environments and equipment operating at higher voltage, helping you protect essential machinery and infrastructure.
• Reliability you can trust—built to perform in challenging settings, with consistent protective characteristics aligned with established Square D engineering.

Ideal use cases

• Replacement in service panels, switchgear, or distribution boards hosting 3-phase 600 V circuits.
• Protection for three-phase motors, conveyors, pumps, and other heavy-duty equipment in manufacturing, processing, and packaging facilities.
• Turnkey upgrades or retrofits where maintaining original equipment manufacturer (OEM) components matters for compatibility and downtime minimization.

Compatibility and installation guidance

Always verify fit by part number and application requirements. The 9998X14 is intended for use in compatible Square D installations designed for 3-pole, 600 V circuits at 90 A. Need help confirming compatibility with your panel or panelboard? Message us and we’ll assist with part-number verification and application matching to keep your project on track.

Practical tips for deployment

• Record the exact part number (9998X14) and cross-check against your panel labeling and manufacturer documentation before purchase.
• Ensure the surrounding enclosure, bus design, and mounting provisions align with a 3-pole, 600 V device to prevent fit issues during installation.
• Keep a spare 9998X14 on-site for quick replacement during maintenance cycles to minimize downtime.
• Store in a dry, clean environment to preserve contacts and mechanical integrity until installation.

Choose the Square D 9998X14 when you require a trusted, OEM-grade circuit breaker that aligns with industrial-grade 3-phase, 600 V systems. If you’re uncertain about compatibility, reach out—we’re ready to help confirm fitment by part number and ensure your project proceeds smoothly.