Breaking capacity and selectivity
The 3VA2225-5HN32-0JL0: The 187 kA interrupting rating at 240 V drops to 121 kA at 415 V and 440 V, then to 75.6 kA at 500 V, and 4.5 kA at 690 V. That steep derating above 500 V means this breaker is best applied on 240 V or 400/415 V systems where the available fault current is high — think main or tie breaker in a large LV switchboard. For 690 V applications, the 4.5 kA limit restricts it to low-fault locations or downstream of a current-limiting device.
Thermal derating and continuous current
The breaker holds 250 A from 40 °C through 50 °C (–), then derates to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C (–). If the panel ambient runs above 50 °C, the continuous load must be reduced accordingly — a common gotcha when the breaker is mounted in a crowded, poorly ventilated enclosure. The maximum power loss is 48 W, which contributes to the internal temperature rise.
Auxiliary and release configuration
Factory-fitted with 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch, plus a shunt trip release (STL). The trip indicator and voltage trigger are both present, meaning remote status and shunt-trip control are built in — no separate accessory kit needed for basic remote tripping and status feedback. No undervoltage release or ground-fault monitoring on this variant.
Dimensions and panel fit
At 86 mm deep, 105 mm wide, and 181 mm tall (–), this 3-pole MCCB fits standard Siemens SENTRON mounting footprints. The width is the critical dimension for multi-breaker panel layouts — 105 mm per pole set means a 3-pole unit occupies roughly 105 mm of DIN-rail or mounting-plate width. Verify the busbar or line-side connection spacing matches the terminal centers before committing the panel layout.
Sourcing and lifecycle
The lifecycle stage is marked as current production, so the 3VA2225-5HN32-0JL0 is an active catalog item — no phase-out notice, no last-time-buy deadline. It's sourced and quoted to order through independent distribution against an RFQ. Availability and current pricing are confirmed at quote time.