Square D | HJL36100M73SK | Circuit Breaker | 100A | 3-Pole | 600V

Introducing the Square D HJL36100M73SK Circuit Breaker — a precise protective device engineered for three‑phase systems. With a 100A rating, 3‑pole construction, and a 600V maximum voltage, this breaker is purpose-built for commercial and light‑industrial panels that demand reliable overcurrent protection. It’s specifically suited for maintenance, retrofit, and replacement projects where exact specifications matter. Before you order, confirm fit and ratings; the part number is the most reliable reference for compatibility.

Key advantages

• Amperage and configuration: 100 A, 3‑Pole for true three‑phase protection
• Voltage rating: 600 V to match common commercial and industrial panel requirements
• Exact reference: Part number HJL36100M73SK to ensure compatibility with your enclosure
• Designed for installation flexibility: Ideal for maintenance, retrofit, and replacement where matching specs are essential
• Simple verification: Use the part number as your compatibility anchor to avoid mismatches

Ideal use cases

Perfect for updating legacy panels, retrofitting electrical rooms, or replacing worn breakers in three‑phase systems. If you’re safeguarding motors, HVAC equipment, pumps, or other sizable loads drawing near 100A, this 3‑pole 600V breaker provides dependable protection at the panel boundary.

How to ensure a proper fit

Rely on the exact part number — HJL36100M73SK — as your compatibility reference. Verify that your panel accepts a 3‑pole, 600V protective device with a 100A rating and that the form factor aligns with your enclosure’s bus configuration and mounting style.

Specifications at a glance

• Amperage: 100A
• Poles: 3‑Pole
• Voltage: 600V
• Part number: HJL36100M73SK