Square D KH361501021 150A 3-Pole 600 V Circuit Breaker

Power up safety and reliability with the Square D KH361501021 150A 3-Pole 600 V Circuit Breaker. This rugged protective device is designed for three-phase distribution systems, delivering dependable overload and short-circuit protection in harsh commercial and industrial environments.

Key specifications at a glance

• Current rating: 150 A
• Pole configuration: 3-pole
• Voltage rating: up to 600 V
• Part number: KH361501021
• Brand: Square D

Why this 3‑pole, 600 V breaker matters

In three-phase systems, a 150 A breaker protects branch circuits and equipment from overloads and damaging faults. The 3-pole design ensures simultaneous disconnection of all phases, reducing arcing and improving safety during a fault. With a 600 V rating, it's suited for commercial feeders, panelboards, and industrial controls that require robust protection for higher voltage applications.

Who will benefit

• Facility managers upgrading distribution panels in offices, data centers, or manufacturing facilities.
• Electrical contractors replacing worn breakers in Square D-installed panels.
• Maintenance teams seeking reliable, long-term protection for critical motor and line circuits up to 150 A.

Practical considerations and tips

• Verify panel compatibility with KH-series breakers and confirm the bus-compatible fit before installation.
• Use the same current rating when replacing a failed breaker to maintain system protection levels.
• Plan for safe installation: de-energize equipment, follow lockout procedures, and adhere to local electrical codes.

With the KH361501021, you get a purpose-built protector from Square D that combines straightforward replacement, reliable performance, and the resilience required for everyday industrial loads. Choose this 150 A, 3-pole, 600 V breaker for dependable circuit protection that keeps your systems operating smoothly, even when demand spikes.