Siemens 5SU1354-7KK06 — SENTRON RCBO, 6 A C-curve
The Siemens 5SU1354-7KK06 is a SENTRON RCBO (residual current operated circuit breaker with integral overcurrent protection) in a 1P+N, 2-pole design. Rated 6 A at 30 °C with a C tripping characteristic, it handles the inrush of small motor or lighting loads without nuisance tripping. The 10 kA breaking capacity per EN 60898 covers most domestic and light commercial panelboards; the 35 kA rating per IEC 60947-2 gives headroom for industrial distribution where fault currents run higher.
What the ratings mean for fit
The C-curve (5–10× In magnetic trip) means this RCBO is sized for circuits with moderate inrush — think small pumps, compressors, or banks of LED drivers. At 6 A it protects a 1.3–1.4 kW resistive load at 230 V, or a motor load derated for starting current. The 10 kA SCCR per EN 60898 is the standard for final circuits in residential and commercial panels; the 35 kA per IEC 60947-2 applies when the device is used as a distribution breaker in an industrial switchboard — the higher figure is the one a panel builder coordinates with upstream fuses or an MCCB. Temperature derating is baked in: at 40 °C it carries 5.7 A, at 50 °C it's 5.4 A, and at 70 °C it drops to 4.62 A. If the panel runs hot — adjacent to a drive or transformer — size up or check the thermal curve.
Panel integration and mounting
Two modular-width units (36 mm) snap onto DIN rail in any orientation. Depth is 77 mm, installation depth 70 mm. Supply can enter from top or bottom. Halogen-free and silicon-free construction matters for environments sensitive to outgassing — clean rooms, food processing, or marine panels where silicone contamination fouls contacts.
Lifecycle and sourcing
This is a current-production part. The SENTRON RCBO family is a core Siemens catalog line with broad distribution. Sourced and quoted to order against an RFQ through independent channels; availability and current pricing confirmed at quote time.