3VL3720-3ME36-0AA0 SIEMENS

The 3VL3720-3ME36-0AA0 is a high-performance circuit breaker from Siemens, designed for line protection in electrical systems. It is part of the VL250L series, known for its very high breaking capacity, specifically an ultimate short-circuit breaking capacity (Icu) of 100kA at 415V AC. This 3-pole circuit breaker is suitable for applications requiring robust protection against overloads and short circuits. It features an Electronic Trip Unit ETU20, providing advanced protection and control capabilities. The ETU20 allows for precise adjustment of protection parameters to match specific load requirements. The rated current (In) is 200A, with an adjustable overload protection range (IR) from 80A to 200A. The short-circuit protection (ISD) can be set from 1.5 to 10 times the IR value, and it also includes instantaneous short-circuit protection (II) at 11 times the IN. This model is communication-capable, enabling integration into monitoring and control systems, but it does not include an auxiliary release or auxiliary/alarm switch.