The D curve means magnetic trip occurs at 10–20× rated current, sized to ride through the startup surge of inductive loads without nuisance tripping. The quick-assembly fastening system and any-position mounting simplify panel layout — no orientation restrictions when fitting into a crowded enclosure.
Breaking capacity and compliance
For UL 1077 / CSA C22.2 No. 235 supplementary protection applications, the rating is 5 kA — a different standard, not a downgrade; it reflects the UL test protocol for branch-circuit protection. Mechanical service life 10,000 operating cycles typical.
Environmental and installation
Humidity derating: max 95% RH at 55 °C, 35% at 75 °C. IP20 with connected conductors. Housing halogen-free and silicon-free. Sealable for tamper-evident applications.