Square D | 997370 | Circuit Breaker | 3-Pole | Bolt-On

Meet the Square D 997370 — a robust 3-Pole Bolt-On Circuit Breaker designed for dependable protection in 3-phase systems. Whether you're maintaining, retrofitting, or replacing components in an existing Square D installation, this breaker slots into compatible panels with precision and confidence.

Key features that matter in real-world use

• Three-pole design delivers balanced protection across all three hot conductors in 3-phase service.
• Bolt-On mounting provides a secure, vibration-resistant connection that stays put in demanding electrical environments.
• Clear compatibility signal the part number 997370 is your best reference for matching fit and ratings — confirm fit and ratings before ordering.
• Maintenance, retrofit, replacement ready ideal for service upgrades, panel refreshes, or component swaps in established Square D systems.

Designed for practical use and long-term reliability

In real-world installations, electricians value a breaker that aligns with the panel’s design philosophy and minimizes downtime. The 3-Pole Bolt-On configuration simplifies service when upgrading from older styles or when expanding a system to support increased load. This breaker is intended for use in compatible Square D panels where a 3-pole bolt-on device is specified.

How to ensure the best result

Before purchase, verify:

• The panel model supports a 3-Pole Bolt-On device of this type.
• The intended amp rating and interrupting capacity match the protection requirements of your circuit.
• Physical fit: bolt pattern and mounting location align with your panel interior.

With the Square D 997370, you get a purpose-built solution that aligns with your 3-phase protection strategy, reducing guesswork and ensuring a reliable, durable connection in demanding environments.