What this MCCB is and where it fits
The Siemens 3VA2225-6HL32-0AG0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels and industrial switchgear. It's a 3-pole unit rated for 250 A continuous current, and it carries a trip setting range from 375 A minimum to a 2 500 A maximum — that range tells you it's adjustable, so you can dial the instantaneous pickup to coordinate with downstream breakers without swapping the frame. The interrupting capacity is what decides whether this breaker survives a fault: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4.5 kA at 690 V. At the common 415 V industrial level, that 187 kA gives you serious headroom over a typical 50–65 kA panel SCCR — it's sized for high-fault locations like a main feeder or a transformer secondary tie. Thermal derating is published across the operating range: it holds 250 A flat from 40 °C through 50 °C, then drops 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 hot — say near a drive cabinet or a roof-mounted enclosure — that 70 °C derated figure of 213 A is the actual continuous limit you'd schedule against.
Installation and panel fit
Physical footprint is 105 mm wide × 181 mm high × 86 mm deep. That's a standard 3-pole MCCB width for the SENTRON 3VA2 frame — it'll drop into a panel that's already cut for a 3VA2 or a comparable 250 A frame breaker. The 86 mm depth means it clears most standard 200 mm deep enclosures with room for rear bus connections. It ships with a basic switch variant order code 3VA2225-6HL32-0AA0, and the auxiliary switch configuration is 1 auxiliary switch plus 1 trip alarm switch HP — that's the standard signaling package for remote status and fault indication. No undervoltage release, no ground-fault monitoring, no communication function on this variant. If you need those, you'd step to a different suffix on the 3VA2 platform. Power loss is 48 W maximum at rated load — that's the heat you need to account for in the enclosure thermal calculation. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The storage low end matters if this sits in an unheated warehouse before installation.