The Siemens SENTRON 3VA2463-5HN32-0DC0 is a 3-pole molded case circuit breaker (MCCB) rated for 630 A continuous current at 40 °C, designed for line protection in distribution panels. It carries a 187 kA interrupting capacity at 240 V, derating to 121 kA at 415/440 V, 75.6 kA at 500 V, and 9 kA at 690 V — the full voltage-break curve matters for fault coordination studies upstream. This MCCB includes an undervoltage release (UVR) and two HQ auxiliary switches, factory-integrated. The basic switch variant is 3VA2463-5HN32-0AA0; the -0DC0 suffix adds the UVR and aux switches as a configured assembly.
Ratings and derating
Continuous current is 630 A at 40 °C ambient, derated linearly to 520 A at 70 °C — the full thermal curve is: 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, 520 A at 70 °C. Panel builders must apply the correct derating for enclosure temperature rise; the 164.5 W maximum power loss at rated load drives ventilation requirements. Breaking capacity is symmetrical: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, 9 kA at 690 V. The steep drop above 500 V means this breaker is not suitable for 690 V applications with high prospective fault current — verify the available fault current at the installation point. Operating temperature range is -25 °C to +70 °C; storage range is -40 °C to +80 °C. The storage minimum governs cold warehouse handling, not running conditions.
Mounting and integration
Dimensions are 248 mm height, 138 mm width, 110 mm depth — fits standard MCCB panel cutouts for 3-pole frames in this class. No communication function or ground-fault monitoring on this variant; it is a straight line-protection breaker with UVR trip. The two HQ auxiliary switches provide remote status indication; the undervoltage release trips the breaker when control voltage drops. No voltage trigger or trip indicator on the front face — fault diagnosis relies on the aux switch state or external indication.