Square D | KHL3617517DC | Circuit Breaker | 175A | 3-Pole | 500V

Meet the Square D KHL3617517DC circuit breaker — a dependable solution for maintaining, retrofitting, or replacing three‑phase power protection in demanding environments. With an amperage rating of 175A, a 3‑pole configuration, and a 500V capacity, it’s built to safeguard substantial electrical loads while fitting into existing Square D systems that require exact specifications.

• Amperage: 175A
• Poles: 3-Pole
• Voltage rating: 500V
• Part reference: KHL3617517DC (best compatibility reference)

Why this specific breaker matters comes down to reliability and precise compatibility. When you’re maintaining or upgrading a panel, using a part number that matches exact electrical and physical characteristics minimizes downtime, reduces the risk of misfit components, and preserves the intended protection profile for your three‑phase circuits.

Ideal use cases

• Maintenance and replacement of aging industrial switchgear that operates on 500V three‑phase systems.
• Retrofits where a like‑for‑like 175A, 3‑pole solution is required to maintain panel continuity and protection schemes.
• Replacements in commercial or light industrial panels that demand proven Square D form factors and reliability.
• Motors, pumps, and other heavy loads in manufacturing lines that rely on solid overcurrent protection.

What sets this breaker apart

Unlike generic replacements, this unit is specified by a dedicated part number, ensuring exact fit, mounting compatibility, and electrical characteristics with existing Square D panels and accessories. The 3‑pole design supports balanced three‑phase protection, which is essential for maintaining the stability of heavier equipment and avoiding nuisance trips on unbalanced loads. The 175A rating is ideal for mid‑to‑high‑current applications, providing robust protection without over‑tripping during normal startup surges.

Compatibility and installation notes

Compatibility hinges on the part number. The KHL3617517DC reference is the best guide when confirming fit with your panel or enclosure. Before placing an order, compare the exact ratings and physical form factor to your existing equipment to ensure seamless replacement and consistent protection.

Practical tips for a smooth swap:

• Verify that your panel’s bus connections and mounting are designed for a 3‑pole, 500V device of the Square D family.
• Cross‑check the amperage (175A) and voltage rating with your system’s operating requirements to prevent under‑ or over‑protection.
• Keep the original part number on hand when ordering to ensure you receive the correct unit, as exact compatibility matters for performance and safety.

Whether you’re upgrading an aging installation, performing a retrofit to accommodate new equipment, or replacing a failed component, the Square D KHL3617517DC circuit breaker delivers the precise specifications you need — with the reliability you expect from a trusted brand.