What this MCCB is and what it carries
The Siemens SENTRON 3VA2063-6HN32-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current across the full ambient range from 40 °C to 70 °C, with a 756 A frame that determines the maximum overcurrent trip setting. It carries an undervoltage release (UVR) as standard — a key detail for safety circuits where loss of control voltage must trip the breaker immediately.
Breaking capacity at the voltages that matter
At 240 V it interrupts 242 kA; at 415 V and 440 V it handles 187 kA; at 500 V the rating drops to 121 kA, and at 690 V it is still capable of 3 kA. Those figures place it in the high-interrupting category — useful for panel coordination studies where the available fault current at the main distribution board exceeds 100 kA.
Lifecycle and sourcing posture
For a BOM that calls out this exact order code, it is sourced and quoted to order against an RFQ; availability and current pricing are confirmed at quote time.
Panel fit and integration notes
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard MCCB footprint that mounts in a panel or enclosure on a mounting plate, with line and load lugs accessible for copper or aluminum conductors. Rated insulation voltage is 800 V, so it is suitable for 480 V / 600 V systems with adequate clearance.