The Siemens 3VA2010-5HL32-0DB0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous at 40 °C through 70 °C — no derating needed across that band, which simplifies panel layout in warm enclosures. Its 187 kA interrupting capacity at 240 V and 121 kA at 415 V give headroom for high-fault installations where the available short-circuit current is stiff.
Physical fit and integration
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. The 86 mm depth leaves room for rear-connected busbars or cable ladders in a typical 200 mm deep cabinet.
Electrical ratings and design
Rated insulation voltage is 800 V, covering 480 V and 600 V class systems with margin. Maximum power loss is 16 W, manageable for thermal budgeting in a grouped panel. The basic switch is order code 3VA20105HL320AA0, and the auxiliary release is an undervoltage release (UVR) — useful for safety circuits that need to drop the breaker on loss of control voltage. No communication function or ground-fault monitoring is built in; this is a straight line-protection device.