The D tripping characteristic (10–20× In magnetic trip) is the key differentiator here. Compared to a B-curve (3–5× In) or C-curve (5–10× In) MCB, the D-curve tolerates the brief, high starting currents of transformers, DC power supplies, and solenoid valves without nuisance tripping. For a 2 A rated breaker, the magnetic trip threshold sits between 20 A and 40 A — that is the window where a short-circuit or heavy overload will clear, but a normal motor start will pass. EN 60898 certifies the breaker for overcurrent protection in household and similar installations; the railway-design variant (5SY4202-8CC11) adds vibration resistance per IEC 60068-2-6 (±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz) and a wider operating temperature range of -40 °C to 75 °C, which are not found on standard commercial MCBs.
Siemens SENTRON 5SY4202-8CC11 MCB, 2-pole D 2A, 400V 10kA
Siemens SENTRON 5SY4202-8CC11, miniature circuit breaker, 2-pole, D tripping characteristic, 2 A rated current, 400 V AC, 10 kA breaking capacity per EN 60898, designed for railway applications.
Specifications
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Application environment | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Parameter | Value |
|---|---|
| Tripping characteristic class | D |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Modular width units | 2 |
| Width | 36 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Mounting position | any |
| Min. | -40 °C |
| Max. | 75 °C |
| Protection degree (IP) | IP20, with connected conductors |
| Parameter | Value |
|---|---|
| Pollution degree | 3 |
| Parameter | Value |
|---|---|
| At AC rated value | 400 V |
| According to EN 60898 rated value | 10 kA |
| With single-phase operation at AC rated value | 440 V |
Product details
Frequently asked questions
Who supplies 5SY4202-8CC11 and how is it quoted for volume purchases?
The part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time; volume pricing is handled per inquiry.
Will 5SY4202-8CC11 drop into a panel specified around 5SY4101-7CV without rewiring?
Both are 2-pole SENTRON MCBs on the same DIN-rail footprint (36 mm width, 2 MW), so the mechanical fit is identical. The difference is the tripping characteristic: 5SY4202-8CC11 is a D-curve (2 A), while 5SY4101-7CV is a different curve and rating. Verify the load's inrush profile and the required breaking capacity before swapping — the D-curve tolerates higher inrush than a B or C curve, which may or may not match the original design intent.
What compliance documentation does this brand provide for 5SY4202-8CC11?
The manufacturer provides RoHS and REACH declarations on request. The EN 60898 certification covers the 10 kA breaking capacity at 400 V AC. The railway-design variant includes documented vibration resistance per IEC 60068-2-6 and a -40 °C to 75 °C operating temperature range.