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
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.
Specifications
| Parameter | Value |
|---|---|
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Width | 72 mm |
| Height | 90 mm |
| Depth | 76 mm |
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.