The 2-pole design switches both phase and neutral (no neutral conductor switching per the spec), so it's a straight 2-pole device for single-phase or two-wire DC circuits up to 440 V DC. The C-curve and 2 A rating make this a good fit for protecting control transformers, small contactor coils, or lighting circuits where the load doesn't pull sustained overcurrent but has a brief start-up spike. Temperature derating is built into the spec: at 40 °C ambient the breaker carries 1.9 A, dropping to 1.7 A at 60 °C. If the panel runs hot — say inside a sealed enclosure near a drive — size up one frame or account for the 0.3 A loss between 35 °C and 60 °C.
Siemens 5SY5202-7KK11 SENTRON MCB, 2A C-Curve 2-Pole, 10kA
MPN5SY5202-7KK11
Siemens SENTRON 5SY5202-7KK11 miniature circuit breaker, 2 A rated current, C tripping characteristic, 2-pole, 10 kA breaking capacity per EN 60898, 2 MW units.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Application environment | universal current |
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Parameter | Value |
|---|---|
| Tripping characteristic class | C |
| 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 |
|---|---|
| Energy Limitation Class | 3 |
Product details
Frequently asked questions
What is the breaking capacity of 5SY5202-7KK11?
10 kA per EN 60898 at AC and 10 kA per EN 60898-2 at DC. This covers most commercial and light industrial panel fault levels.
Where can I buy 5SY5202-7KK11 and how is it quoted?
The part is sourced to order against an RFQ through independent distribution. Submit a request for current pricing and availability — no stock or lead-time figures are published here.
What compliance documentation is available for 5SY5202-7KK11?
The part is designed for railway applications (per the product designation) and carries EN 60898 and EN 60898-2 ratings. RoHS, REACH, and UL documentation should be available from the manufacturer's technical support; the evidence does not list specific cert numbers.
Will 5SY5202-7KK11 fit a panel specified for 5SY5240-7?
Both are 2-pole SENTRON MCBs with the same 36 mm width and DIN-rail mounting, so the mechanical footprint is identical. The difference is the rating: 5SY5202-7KK11 is 2 A C-curve; 5SY5240-7 is a higher-current variant. No rewiring needed if the current rating matches the circuit requirements.
MPN
5SY5202-7KK11