The housing is 2 modular width units (36 mm wide), with a depth of 76 mm and an installation depth of 70 mm — check the gland plate clearance; the extra 6 mm is the terminal projection. Combined terminals at both top and bottom accept a range of conductor sizes. Ambient temperature range is -40 °C to 75 °C, with humidity derating above 55 °C — at 75 °C the relative humidity must stay under 35%.
Siemens 5SY4210-7KK11 SENTRON MCB, 2-Pole C-Curve, 10kA
MPN5SY4210-7KK11
Siemens SENTRON 5SY4210-7KK11 miniature circuit breaker, 2-pole, C-curve, 10 kA (EN 60898) / 20 kA (IEC 60947-2), 400 V AC, IP20, for railway applications.
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 | Mechanical engineering / industry |
| 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 |
|---|---|
| At AC rated value | 400 V |
| According to EN 60898 rated value | 10 kA |
| With single-phase operation at AC rated value | 440 V |
| Energy Limitation Class | 3 |
Product details
Frequently asked questions
Where can I buy 5SY4210-7KK11 and how do I get a price?
Submit an RFQ through this listing. The part is sourced to order through independent distribution; availability and current pricing are confirmed at quote time.
What is 5SY4210-7KK11's listed depth (76 mm) on this component line?
The overall depth is 76 mm, with an installation depth of 70 mm — the 6 mm difference accounts for the terminal screw heads and conductor exit.
What is 5SY4210-7KK11's listed width (36 mm) on this component line?
Width is 36 mm, which corresponds to 2 modular width units on a standard DIN-rail panel.
Will 5SY4210-7KK11 drop into a panel that was specified around 5SY4304-7CV without rewiring?
Both are 2-pole SENTRON MCBs with the same 36 mm width and DIN-rail mounting, so the physical swap is straightforward. However, the 5SY4304-7CV carries a different current rating and possibly a different trip curve — verify the branch circuit rating before substitution.
What compliance documentation does this brand provide for 5SY4210-7KK11 (RoHS, REACH, UL, IEC)?
The part is certified to DIN EN 60898-1 and IEC 60947-2. It is halogen-free and silicon-free. For RoHS/REACH declarations and specific UL file numbers, request the compliance package with your RFQ.
MPN
5SY4210-7KK11