The Siemens 5SU1654-1KK25 is a SENTRON RCBO — a combined residual-current circuit breaker and overcurrent MCB in one 2-module-wide (36 mm) package, 1P+N, rated 25 A with a C tripping characteristic. It breaks fault currents up to 10 kA per EN 60898 and 20 kA per IEC 60947-2 at 230/240 V AC, 50 Hz. The residual-current element is type AC (sensitive to sinusoidal AC fault currents only). At 30 °C ambient the thermal-magnetic trip is rated a full 25 A; derate to 23.5 A at 40 °C, 22.75 A at 45 °C, 20.25 A at 55 °C and 60 °C, 19.25 A at 65 °C, and 18.25 A at 70 °C. That derating curve matters if the RCBO lives in a crowded, warm panel — the 40 °C figure is the one most panel builders use for continuous load planning.
Siemens 5SU1654-1KK25 SENTRON RCBO, 25 A, C-curve, 10 kA
MPN5SU1654-1KK25
Siemens SENTRON 5SU1654-1KK25 RCBO, 2-pole 1P+N, 25 A, C-curve, 10 kA (EN 60898) / 20 kA (IEC 60947-2), 230/240 V AC, 50 Hz, halogen- and silicon-free.
Source DocumentedChannel stated on listing & quote
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Product designation | RCBO |
| Product design / construction | Instantaneous |
| Parameter | Value |
|---|---|
| Mounting position | any |
| Width in modular units | 2 |
| Maximum | 75 °C |
| Minimum | -40 °C |
| Width | 36 mm |
| Height | 90 mm |
| Depth | 77 mm |
| Installation depth | 70 mm |
| Parameter | Value |
|---|---|
| IP degree of protection | IP20, if the distribution board is installed, with connected conductors |
| Parameter | Value |
|---|---|
| Tripping Characteristic Class | C |
| Operational current / at AC / rated value | 25 A |
Product details
Frequently asked questions
Where can I buy 5SU1654-1KK25 and how do I get a price?
The 5SU1654-1KK25 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What compliance documentation does this brand provide for 5SU1654-1KK25?
The part carries approvals per EN 60898 and IEC 60947-2. It is halogen-free and silicon-free, and classified per IEC 81346-2 and DIN EN 61346-2. Specific RoHS/REACH/UL declarations should be requested at quote time.
MPN
5SU1654-1KK25