The D curve holds through 10–20× rated current before instantaneously opening, so it clears only hard faults, not the normal start-up surge.
Rated 30 kA per IEC 60947-2 and 5 kA per UL 1077 / CSA C22.2 No. 235. The 5 kA UL rating reflects the lower interrupting duty typical of North American supplementary protector applications. Overvoltage category III confirms it is rated for fixed-installation distribution boards, not just branch circuits.
Screw terminals tighten to 2.5–3.5 N·m; combined terminal top and bottom means the line and load conductors enter from either end, simplifying busbar routing.
The manufacturer lists this part as current-production — no NRND or phase-out notice on record. For a BOM freeze or line-down replacement, this is a straightforward active-order-code procurement, not a last-time-buy or surplus hunt.
The sealable design allows lockout/tagout in safety circuits. Touch-protected terminals reduce arc-flash exposure during troubleshooting. The part carries the SENTRON brand and is classified per DIN EN 61346-2 as function F (protective device).