What this MCCB carries and where it fits
The Siemens 3VA2110-5HL36-0JL0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. That 100 A holds at every 5 °C step from 40 °C through 70 °C, which simplifies panel thermal budgeting when the breaker sits near other heat sources. Three-pole construction, designed for line protection (cable/feeder protection, not motor-only duty). The adjustable thermal-magnetic trip unit spans 150 A minimum to 1 200 A maximum — that's a wide magnetic pickup window, so you set the instantaneous trip threshold to coordinate with downstream branch breakers without nuisance tripping on inrush. Breaking capacity is voltage-dependent: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. At 415 V — common in European industrial distribution — the 121 kA rating handles high-fault scenarios like transformer secondaries or busway taps without cascading upstream.
Panel fit and integration
Dimensions: 181 mm high, 105 mm wide, 86 mm deep. The 105 mm width is the standard 3-pole MCCB footprint for this frame size — it occupies three 35 mm DIN-module positions if mounted on a DIN rail, or bolts directly to a mounting plate via the rear slots. The 86 mm depth leaves clearance behind a 200 mm deep enclosure door. Maximum power loss is 10 W. In a sealed, non-ventilated enclosure, that 10 W contributes to internal temperature rise; factor it into the thermal calculation if the panel also houses drives or transformers.
Auxiliary hardware onboard
Factory-fitted with a shunt trip (STL) release for remote tripping, plus two auxiliary switches, one trip alarm switch, and one electrical alarm switch (HQ type). The auxiliary switches signal breaker position to a PLC or status lamp; the alarm switches indicate a trip event separately from normal open/close. No undervoltage release fitted — if undervoltage protection is needed, that's a separate order. Trip indicator and voltage trigger are present. The voltage trigger allows a remote signal to initiate a trip — useful in emergency-stop circuits where a safety relay cuts power via the shunt trip rather than dropping out a contactor.