The Siemens 3VA1125-6EF32-0HH0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for line protection at 25 A continuous current (Iu). Its interrupting capacity hits 220 kA at 240 V AC, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V — those numbers govern selectivity and SCCR compliance downstream. The thermal-magnetic release is a TM240, and the auxiliary contact block carries 2 auxiliary switches plus 1 trip alarm switch (HQ variant).
Rated continuous current holds at 25 A from 40 °C through 50 °C, then steps down: 24 A at 55 °C, 23.5 A at 60 °C, 23 A at 65 °C, and 22.5 A at 70 °C. Operating ambient range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.
Mechanical fit and panel integration
Dimensions: 130 mm height, 76.2 mm width, 70 mm depth. The 76.2 mm width is a standard 3-pole MCCB footprint — it drops into a panel cutout sized for that pitch without modification. Mounting is via the rear panel or DIN rail adapter (not included).