Rated current and interrupting capacity — what they mean for the panel
The Siemens 3VA2010-5HN36-0DL0 is a 3-pole SENTRON molded case circuit breaker rated for 100 A continuous current (Iu) across the 40 °C to 50 °C ambient range, per the datasheet. Above 55 °C the current must be derated linearly to 85 A at 70 °C. The interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 3.4 kA at 690 V — these are the maximum fault currents the breaker can safely clear at each voltage level without upstream cascading. This is a line protection version (not feeder or motor protection), meaning the ETU350 electronic trip unit is configured for cable and busbar protection curves. The breaker includes an undervoltage release (UVR) as standard, which drops the trip mechanism when control voltage falls below the dropout threshold — useful for emergency-stop circuits that need to guarantee isolation on power loss.
Auxiliary contacts and trip alarm wiring
The auxiliary contact block is factory-fitted with 2 auxiliary switches (form C), 1 trip alarm switch, and 1 electrical alarm switch (HQ type). That gives you four independent signal paths: two for status feedback (open/closed), one for trip indication, and one for electrical alarm — all wired via the integrated auxiliary trip base 3VA9608-0BB25. The basic switch assembly is order code 3VA2010-5HN36-0AA0 if you ever need the base unit separately.
Mounting dimensions and panel fit
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep. These are the envelope dimensions for DIN-rail or screw-mount installation in a standard distribution panel.
Environmental limits and power dissipation
Operating temperature range is -25 °C to +70 °C; storage range extends from -40 °C to +80 °C. Maximum power loss at rated current is 16 W — a figure to include in the panel thermal budget if the breaker is enclosed with other heat sources.