SENTRON 5SY6540-7CC – C-curve MCB, 1P+N, 6 kA
For North American installations, the 5SY6540-7CC carries a 5 kA interrupting rating per UL 1077 and CSA C22.2 No.235 — sufficient for most commercial and light industrial panelboards.
Panel cutout and enclosure planning: depth 76 mm (70 mm installation depth behind the panel), width 36 mm (2 MW), height 90 mm. IP20 with connected conductors — this is a panel-internal device, not for wet or outdoor locations without an enclosure.
Mechanical endurance 10,000 operating cycles typical. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Sealable design allows lockout/tagout with a padlock hasp.