Square D JJL36175 - 175 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D JJL36175—a 175A, 600V, 3-pole molded-case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection for panelboards and load centers. This device combines compact design with robust protection, making it a straightforward choice for both upgrades and new installations.

Why this breaker stands out

• Space-efficient molded-case design frees up precious panel volume, helping you fit more conductors and devices in tight installations without sacrificing protection performance.
• Thermal-magnetic trip unit provides stable, repeatable protection by combining a thermal element for overload sensing with a magnetic element for rapid response to short circuits. This dual approach minimizes nuisance trips while still interrupting dangerous faults quickly.
• 3-pole configuration for three-phase systems ideal for commercial and light industrial environments where balanced protection across all phases matters for equipment longevity and reliability.
• 175A at 600V delivers solid protection for feeder circuits and smaller panel installations, supporting safe distribution of higher-power loads.
• OEM-compatible design engineered to pair with matching Square D OEM load centers and panelboards, ensuring a proper fit, coordinated trip characteristics, and straightforward replacement or expansion.

Practical use cases

• Feeder protection in small to mid-size commercial spaces—retail storefronts, offices, and data-related setups—where reliable 3-phase protection is essential.
• Panelboard upgrades or retrofits that require a compact, dependable breaker with predictable trip behavior.
• New installations in residential-light industrial environments that demand robust short-circuit protection without sacrificing space efficiency.

What this means for you

• Better uptime: precise trip performance minimizes unplanned outages and protects wiring and connected equipment from fault currents.
• Long-term reliability: solid construction and compatibility with Square D panelboards mean fewer compatibility headaches during servicing or future expansions.
• Clear, actionable protection: the thermal-magnetic mechanism provides clear, understandable responses to overloads and faults, simplifying maintenance decisions.

Technical snapshot

• Manufacturer: Square D
• Part number: JJL36175
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 175A
• Voltage rating: 600V
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection