Breaking Capacity and Thermal Performance
The 3VA2025-8KQ36-0AA0: Breaking capacity is voltage-dependent: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. That covers most LV fault levels in North American and European 400/480 V panels. The 25 A rating holds flat across the full ambient range from 40 °C to 70 °C — no derating needed for warm enclosures. Insulation voltage is rated 800 V, so it's comfortable on 690 V systems.
Panel Fit and Integration
Dimensions are 105 mm wide, 181 mm high, 86 mm deep — fits a standard MCCB footprint in a distribution panel. The unit includes a communication function and ground-fault monitoring via summation current formation on the L-conductor, so it can feed status back to a BMS or PLC without an add-on module. No undervoltage release or trip indicator on this variant; those are separate order-code options.
Sourcing and Lifecycle
Lifecycle status is current — this is an active catalog number from Siemens SENTRON. No end-of-life notice or last-time-buy window. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.