ABB S400 series, S403M-C63, 3-pole MCB, 63 A, Trip Curve C, 240 VAC, 10 kA interrupting rating, DIN rail mount.
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Parameter | Value |
|---|---|
| Voltage (AC) | 240 |
| Current (A) | 63 |
| Parameter | Value |
|---|---|
| Interrupting rating (AC) | 10 kA |
| Parameter | Value |
|---|---|
| Mounting type | DIN Rail |
| Parameter | Value |
|---|---|
| Type | Trip Curve C |
| Family (Style) | S400 |
The DIN-rail footprint fits standard 35 mm rail in a panel enclosure.
Trip Curve C means the magnetic trip operates at 5 to 10 times rated current (315 A to 630 A for this 63 A unit). That range suits loads with moderate inrush — motor starters, small transformers, lighting banks — where a B curve would nuisance-trip on startup surge but a D curve would delay too long for conductor protection.
The S403M-C63 has a 10 kA interrupting rating at 240 VAC. This is the maximum fault current the breaker can safely interrupt without damage.
The S403M-C63 is available to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time.