Siemens 5SL3325-7 — 25 A C-curve 3-pole MCB
It breaks up to 4.5 kA per EN 60898 and 5 kA per IEC 60947-2 — enough for residential and light commercial distribution boards where the fault current stays under that threshold. The C-curve means it holds through motor inrush up to 5–10× rated current, so it's a common choice for lighting, socket circuits, and small motor loads in infrastructure builds.
Mounts in any position — no derating needed for orientation. Sealable with a lead seal to prevent tamper after commissioning.
Electrical and environmental ratings
Rated for 400 V AC multi-phase, max 440 V AC. Frequency 50/60 Hz. DC rating is limited to 72 V max — not a DC-primary breaker, but usable on low-voltage DC control circuits within that limit. Ambient temperature range -40 to 75 °C, so it handles outdoor enclosures in cold climates.