Siemens 3VA2063-6HN32-0AA0 — SENTRON 63 A MCCB with ETU350 Trip Unit
The Siemens 3VA2063-6HN32-0AA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current, designed for line protection in distribution panels and industrial switchgear. Breaking capacity is the headline number here: 242 kA at 240 V AC drops to 187 kA at 415 V and 440 V, then 121 kA at 500 V, and 3 kA at 690 V. The 63 A frame stays flat-rated across the full ambient range from 40 °C to 70 °C, so no derating curve to track in a warm enclosure.
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA2 frame footprint. The 86 mm depth (3.39 in) means it clears most 200 mm deep enclosures with room for rear-access wiring; verify against your gland plate and busbar clearance. The ETU350 trip unit has no communication function and no undervoltage release integrated — those are external accessories. No ground-fault monitoring version is built in, so if GFP is required, plan for a separate module or a different variant.
Environmental and Compliance Range
Operating temperature spans -25 °C to 70 °C; storage range is -40 °C to 80 °C. The insulation voltage is rated at 800 V, covering 480/600 V systems with margin. The breaker carries the standard SENTRON compliance documentation package — RoHS, REACH, and IEC/UL certifications are part of the series release.