It's a 2-pole unit wired as 1P+N — meaning it switches the live conductor and switches the neutral, which is handy when you need to fully isolate a single-phase circuit without pulling a separate neutral disconnect. The D curve holds through 10–20× rated current before instant tripping, matching the surge profile of inductive equipment. That dual rating means it's accepted in both commercial and heavy-industrial specs without an extra fuse backup. For North American installs, it also carries a 5 kA rating at AC per UL 1077 and CSA C22.2 No. 235 — enough for most supplementary-protection applications in machinery built to those codes.
Installation depth is 70 mm, and overall depth is 76 mm including the terminals. Mountable in any position, which simplifies layout in cramped enclosures where you can't guarantee vertical orientation. Sealable (padlockable) handle available if the install requires lockout/tagout compliance.
Operating temperature range from -40 °C to 75 °C, with humidity derating: max 95% RH up to 55 °C, tapering to 35% at 75 °C. Design acc. to DIN EN 61346-2 and DIN EN 81346-2 (function code F) for consistent reference in panel documentation. Overvoltage category III for fixed-installation protection.