Siemens 5SY MCBs are DIN-rail miniature circuit breakers with 10 kA breaking capacity. The range covers 0.3 A to 63 A in 1 and 2 poles with C curve at 400 V, with more than 30 products. Stoklink ships worldwide from Turkey and quotes volumes on request.
What's in this range
- 5SY51 types in 1 pole and 5SY52 types in 2 poles.
- Low ratings from 0.3 A for control and instrument circuits, up to 63 A.
- C curve at 10 kA.
- Related family: Siemens 5SL MCBs for 3P and 4P devices.
How to choose
- Choose 5SY where the fault level calls for 10 kA in a 1P or 2P device.
- Match the rated current to the cable and the load.
- Use the 5SL family when three-pole or four-pole devices are needed.
FAQ
When is a 10 kA MCB needed?
When the prospective short-circuit current at the board approaches or exceeds 6 kA, for example close to a transformer.
Does 5SY come in 3P or 4P?
Not in this range. It lists 1P and 2P devices only. See the 5SL collection for 3P and 4P.
Do you ship 5SY breakers abroad?
Stoklink ships worldwide from Turkey on EXW terms. Lead time depends on distributor stock, so request a quote with your part numbers and quantities.
