Description

This is a commercial-grade Molded Case Circuit Breaker (MCCB) from the Siemens 3VM series. It is designed for basic electrical distribution and infrastructure applications, providing reliable protection against overloads and short circuits.

Key Specifications:Series (3VM): Siemens’ cost-effective, compact entry-level line of MCCBs, optimized for standard building and industrial applications.

Number of Poles (3P): Three-pole configuration, typically used for protecting three-phase electrical systems.

Current Rating (100A): A rated continuous current of 100 Amps. It will safely carry this load under normal conditions.

Trip Unit Type (FTFM / TM210): Features a Fixed Thermal, Fixed Magnetic (FTFM) TM210 trip unit. Both the overload protection (thermal) and short-circuit protection (magnetic) are factory-set and cannot be adjusted.

Breaking Capacity (Icu = 25kA @ 415V): The Ultimate Short-Circuit Breaking Capacity. It can safely interrupt a massive fault current of up to 25,000 Amps at a system voltage of 415V AC without destroying itself.

Service Breaking Capacity (Ics = 50%): Rated at 50% of $I_{cu}$ (which equals 12.5kA). This means the breaker can successfully interrupt a 12.5kA short circuit and still remain fully operational afterward.