What this MCCB delivers — and the so-what for your panel
The Siemens 3VA2110-5HN36-0CC0 is a SENTRON molded case circuit breaker rated for 100 A continuous at 40 °C, with a 3-pole configuration and a line-protection design. The 187 kA interrupting capacity at 240 V means it can clear a fault of that magnitude without upstream cascading — useful for high-fault-current industrial distribution where the service entrance feeds a large transformer. The undervoltage release (UVR) integrated into the breaker trips the contacts when supply voltage drops below a threshold, protecting downstream motors or drives from a brownout restart condition.
Ratings that matter for coordination
The interrupting ratings cascade: 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The steep drop at 690 V tells you this breaker is meant for 400 V-class systems — at 690 V the SCCR is only 3.7 kA, so if your panel feeds a 690 V motor drive, you need a different frame or a current-limiting upstream device. The 100 A rating holds flat from 40 °C through 70 °C, no derating required in a warm enclosure (–).
Lifecycle and sourcing posture
The lifecycle stage is marked current — this is an active, in-production part. The part is sourced through independent distribution and quoted to order against an RFQ.
Panel fit and integration
Dimensions: 86 mm deep, 105 mm wide, 181 mm tall. The width is a standard 105 mm MCCB footprint — it fits most DIN-rail or panel-mount enclosures without needing a wider cutout. The breaker includes two auxiliary switches (HQ type) and the undervoltage release, so no separate add-on modules are needed for remote status or undervoltage protection. Maximum power loss is 12.5 W, which is manageable for a 100 A frame but worth accounting for in a sealed, high-ambient cabinet.