Square D KI361501021 150A 3-Pole 600 V Circuit Breaker

Meet the Square D KI361501021 150A 3-Pole 600 V Circuit Breaker—your reliable guard for three‑phase electrical systems up to 600 volts. Designed as a genuine Square D replacement, this part (KI361501021) ensures precise fit, trustworthy performance, and seamless integration into compatible panels and enclosures.

Key specifications at a glance:

• Current rating: 150 A
• Pole count: 3 (three‑pole design for three‑phase distribution)
• Voltage rating: 600 V
• Part number: KI361501021

This circuit breaker is purpose-built for protecting feeders and branch circuits in commercial and light‑industrial environments that rely on three‑phase power. With a 150 A rating, it provides robust overcurrent protection for equipment like motors, conveyors, and HVAC gear, helping prevent damage from overloads and short circuits while supporting safer, more stable operation of your electrical system.

Why choose this specific part?

• Exact fit and guaranteed compatibility: As a genuine Square D component, KI361501021 matches Square D panels and enclosures designed to accept this 3‑pole, 600 V device, reducing installation guesswork and downtime.
• Clear replacement path: When service is required, replacing with the identical part number minimizes compatibility risks and maintains system continuity.
• Reliable protection for three‑phase networks: The 3‑pole configuration is ideal for safeguarding three‑phase distributions common in commercial facilities and industrial spaces.
• Operational clarity for maintenance teams: Clear specifications—150 A, 3 poles, 600 V—make inventory and procurement straightforward for electricians and facility managers.

Who benefits most from this breaker? electrical contractors, facilities managers, and maintenance teams responsible for commercial buildings, light manufacturing, data centers, and large office complexes that rely on stable three‑phase power. It’s an excellent choice for upgrading, replacing, or stocking spare parts to maintain uninterrupted service and electrical reliability.

Practical usage notes:

• Verify panel compatibility before installation to ensure a proper fit and safe operation.
• Use only identical ratings and part number KI361501021 for replacements to maintain system protection integrity.
• Follow standard safety practices: de‑energize equipment, discharge stored energy, and consult panel manufacturer guidelines for torque and mounting procedures.

Choose the Square D KI361501021 150A 3-Pole 600 V Circuit Breaker for precise replacement, dependable three‑phase protection, and peace of mind in demanding electrical environments. It’s the trusted component your Square D system needs to stay safe, compliant, and ready for the next operation.