Square D JDA36175 PowerPact Low Voltage Circuit Breaker

Square D PowerPact JDA36175 is a 3-pole molded‑case circuit breaker from the PowerPact J family, rated for 175 A and 600 V AC, designed to protect feeders and branch circuits in commercial and industrial power distribution. It uses a thermal‑magnetic trip unit (LI – Long‑Time and Instantaneous) with I‑Line style plug‑in mounting for the line side and lugs for the load side, and it carries an 80% continuous current rating with a magnetic hold current of 875 A. Interrupting capacity is voltage‑dependent, listed as 14 kA at 600 V AC, 18 kA at 480 V AC, and up to 25 kA at 240 V AC (with 20 kA at 250 V DC), making it suitable for a range of short‑circuit conditions. The unit measures 11.48 in (height) × 4.48 in (width) × 5.87 in (depth) and weighs about 5.3 lb, with terminal compatibility for AWG 4 through AWG 4/0 aluminum or copper conductors. Typical applications include providing reliable protection in PowerPact J installations within I‑Line panelboards for industrial or commercial distribution, combining robust overload and short‑circuit protection with straightforward toggle operation and certified performance.