What this MCCB delivers on the line
The Siemens SENTRON 3VA2110-5JQ32-0CH0 is a 3-pole molded case circuit breaker rated for a full-scale current of 100 A, with an adjustable thermal-magnetic trip range from 150 A minimum to 1 200 A maximum. Its interrupting capacity reaches 187 kA at 240 V, dropping to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — figures that define its fault-clearing envelope across common industrial voltage levels. This breaker is designed for line protection, carries an undervoltage release (UVR), and includes a communication function for integration into monitored distribution systems. The auxiliary switch complement — 2 auxiliary switches plus 1 trip alarm switch HQ — provides status feedback for remote indication or PLC inputs.
Thermal performance and panel fit
Rated continuously at 100 A across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Maximum power dissipation is 12.5 W, manageable in a standard enclosure without forced cooling. The 86 mm depth, 105 mm width, and 181 mm height (3.39 × 4.13 × 7.13 in) fit a compact DIN-rail or panel-mount footprint; verify gland-plate clearance for the UVR and communication wiring. Operating temperature range spans -25 °C to 70 °C; storage from -40 °C to 80 °C. The undervoltage release (UVR) triggers a trip on loss of control voltage — specify the coil voltage separately. A trip indicator confirms the breaker has opened on fault, aiding fault isolation during commissioning or MRO rounds.