The Siemens SENTRON 5SM3415-6KK is a 2-pole residual current operated circuit breaker (RCCB) rated 125 A at 230 V AC with a 100 mA trip threshold and Type A waveform sensitivity — covering sinusoidal AC and pulsating DC fault currents up to 100 mA. Its instantaneous design (no intentional delay) means it clears ground faults as fast as the internal mechanics allow, which is standard for personnel protection in final subcircuits. The 10 kA short-circuit current rating (SCCR) matches the interrupting capability of a typical distribution board back-up fuse or MCB, so it coordinates without extra upstream hardware in most residential and light commercial panels. Snaps onto DIN rail (REG) and occupies 2 modular width units (36 mm). Mounting position is unrestricted — top or bottom feed — which simplifies panel layout when the busbar arrangement is already fixed. IP20 with conductors connected, so it lives inside a distribution board, not exposed to washdown or dust.
Siemens 5SM3415-6KK SENTRON RCCB, 2-pole, 125 A, 100 mA, Typ
Siemens SENTRON 5SM3415-6KK, RCCB, 2-pole, Type A, In: 125 A, 100 mA, Un AC: 230 V, instantaneous, 10 kA SCCR, DIN rail mount.
Specifications
Electrical Ratings
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Overvoltage category | III |
Identification
| Parameter | Value |
|---|---|
| Product designation | RCCB |
| Product design / construction | Instantaneous |
Mechanical
| Parameter | Value |
|---|---|
| Mounting position | any |
| Width in modular units | 2 |
| Maximum | 45 °C |
| Minimum | -25 °C |
| Width | 36 mm |
| Height | 90 mm |
| Depth | 70 mm |
| Installation depth | 70 mm |
Environmental
| Parameter | Value |
|---|---|
| IP degree of protection | IP20, if the distribution board is installed, with connected conductors |
Product details
Frequently asked questions
How do I get current pricing and availability for 5SM3415-6KK?
Submit an RFQ through the storefront; pricing and stock are confirmed at quote time against the current market. No public price is listed because the figure moves with quantity and channel.
What is 5SM3415-6KK's listed depth?
70 mm installation depth, matching the standard SENTRON RCCB footprint. Panel depth clearance should allow at least 70 mm plus wiring bend radius.
Will 5SM3415-6KK drop into a panel specified around 5SU9354-7KK20 without rewiring?
Not directly. The 5SU9354-7KK20 is an RCBO (RCD + MCB combined) with a 230/240 V rated voltage and a C-curve thermal-magnetic trip; the 5SM3415-6KK is a plain RCCB with no overcurrent protection and a 230 V rating. The DIN footprint (2 MW, 36 mm) is the same, but the wiring scheme and protective function differ — the RCBO replaces both an RCCB and an MCB in one unit, while the RCCB alone does not provide overcurrent protection.