Breaking capacity and thermal derating
The 3VA2325-5HN32-0HL0: Breaking capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — these figures govern selectivity coordination with downstream devices. The continuous current holds at 250 A up to 50 °C ambient, then derates to 240 A at 55 °C, 235 A at 60 °C, 230 A at 65 °C, and 225 A at 70 °C. Maximum power loss is 37.5 W.
Trip unit and auxiliary configuration
Fitted with an ETU350 electronic overcurrent release. The auxiliary contact block provides 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ). A shunt trip release (STL) is integrated for remote tripping. No undervoltage release, no communication function, no ground fault monitoring, and no phase failure detection are included on this variant.
Physical dimensions and environment
Dimensions: 248 mm height, 138 mm width, 110 mm depth. Operating temperature range -25 °C to +70 °C; storage range -40 °C to +80 °C. The part is designed for panel-mount installation typical of SENTRON MCCBs.