Square D RKF36120U44A 44A 3-Pole 600 V Circuit Breaker

Meet the Square D RKF36120U44A — a rugged molded-case circuit breaker built for three-phase power in commercial and light industrial environments. With a precise 44 A current rating and a 600 V maximum rating, this 3-pole device delivers reliable overcurrent protection for feeders, motors, and critical electrical loads in panels designed to accept RKF series breakers.

Why the RKF36120U44A stands out

• Three-pole protection: Aligns all three phases to guard against imbalances and phase faults, helping prevent equipment damage and downtime.
• 44 A rating: Suited for mid-range, three-phase loads where consistent protection without nuisance trips is essential.
• 600 V maximum: Ready for typical industrial distribution voltages, providing safe and reliable interruption when faults occur.
• Durable, molded-case construction: Designed to withstand the rigors of busy electrical panels and harsh maintenance environments.
• Direct-fit compatibility: Specifically engineered for Square D panels that accept RKF breakers, enabling straightforward replacements and upgrades.

Ideal use cases

• Protect three-phase feeders and motors in manufacturing lines, HVAC systems, pumps, and conveyors.
• Upgrade or replace aging protection in commercial or light industrial panels that support RKF-series devices.
• Provide reliable protection for critical equipment in data centers, schools, and facilities management where consistent trip performance matters.

What you gain with the RKF36120U44A

• Predictable, quick-response overcurrent protection to minimize damage from short circuits and overloads.
• Confidence in panel uptime thanks to a trusted Square D design lineage and a 3-pole configuration that covers all live conductors.
• Clear part identity for efficient maintenance and stocking with the exact RKF36120U44A 3-Pole 600 V circuit breaker you need.

Technical snapshot
Current rating: 44 A
Poles: 3
Voltage rating: 600 V
Part number: RKF36120U44A
Product type: Circuit breaker (molded case) for three-phase protection

When you select the RKF36120U44A, you’re choosing a dependable, industry-standard solution for safeguarding three-phase systems up to 600 V. It fits compatible Square D panels and provides clear, consistent protection for a range of industrial and commercial applications. Add this 3-Pole, 44 A, 600 V breaker to your project and keep critical equipment protected with confidence.