The breaker is listed to both IEC/EN 60898-2 and UL1077, so it qualifies for panels destined for European and North American sites without requalifying the branch protection.
Panel integration — dimensions and mounting
The 5SY5140-7 occupies 1 modular width unit (18 mm) on a DIN rail, with a depth of 76 mm and height of 90 mm. Installation depth is 70 mm, leaving clearance behind the rail for wiring. The quick-assembly fastening system snaps onto the rail without tools and releases with a screwdriver push — standard for SENTRON 5SY series. IP20 rating applies with connected conductors, meaning the breaker is finger-safe once wired but not protected against water ingress — standard for panelboard installation inside a rated enclosure. Degree of pollution 3 and overvoltage category III confirm it is designed for fixed installations where transient overvoltages are controlled by upstream SPDs.
Halogen-free and silicon-free construction, which matters for panels installed in clean-room or semiconductor environments where outgassing can contaminate optics or sensitive surfaces. Operating temperature range is -40 °C to 75 °C, with humidity derating above 55 °C (95% RH up to 55 °C, 55% RH up to 70 °C, 35% RH at 75 °C). The breaker is sealable — a lead wire can be threaded through the housing for tamper-evident sealing in metering or critical circuits.