The Siemens 5SY4432-8CC11 is a SENTRON 4-pole miniature circuit breaker with a D tripping characteristic, rated 32 A at 400 V AC. The D-curve means it tolerates higher inrush currents — typical for motor, transformer, or welding loads where the start-up spike could nuisance-trip a B or C curve. Breaking capacity is 10 kA per EN 60898, which covers most distribution board fault levels in commercial and light industrial panels. The 4-pole design (4P) switches all three phases plus neutral, with no neutral conductor switching function — the neutral pole is switched but not protected.
Siemens 5SY4432-8CC11 SENTRON MCB, 4P D 32 A 10 kA
MPN5SY4432-8CC11
Siemens SENTRON 5SY4432-8CC11, 4-pole miniature circuit breaker, D tripping characteristic, rated 32 A / 400 V AC, 10 kA breaking capacity per EN 60898, IP20, 76 mm depth.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Application suitability | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Pole configuration | 4P |
| Rated current (In), AC | 400 V |
| Rated current (In), AC | 32 A |
| Rated voltage, AC (multi-phase) | 440 V |
| Rated voltage, AC (single-phase) | 440 V |
| Rated voltage, DC (max.) | 72 V |
| Voltage type | AC |
| Rated frequency | 50/60 Hz |
| Parameter | Value |
|---|---|
| Tripping characteristic (trip curve) | D |
| Rated breaking capacity (Icn), per EN 60898 | 10 kA |
| Overvoltage category | III |
| Degree of protection (IP) | IP20, with connected conductors |
| Neutral conductor switching | No |
| Touch protection | Yes |
| Parameter | Value |
|---|---|
| Width in modular units | 4 |
| Width | 72 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Mounting position | any |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Influence of ambient temperature (derating) | max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C |
| Parameter | Value |
|---|---|
| Mechanical service life (switching cycles, typ.) | 10 000 |
Product details
Frequently asked questions
What is the breaking capacity of 5SY4432-8CC11?
Rated breaking capacity is 10 kA per EN 60898 at 400 V AC. For multi-phase operation the rated voltage is 440 V AC.
What conductor sizes does the 5SY4432-8CC11 accept?
Solid conductors from 0.75 to 35 mm² and stranded conductors from 0.75 to 35 mm². The screw terminals require a tightening torque of 2.5 to 3.5 N·m.
Where can I buy 5SY4432-8CC11 and get current pricing?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote.
MPN
5SY4432-8CC11