Description

This Siemens Motor Circuit Breaker (frequently categorized under the SIRIUS 3RV2 family, such as part number 3RV2011-1FA10) is a compact, highly reliable electromechanical device designed primarily for the switching and protection of standard three-phase AC motors. Its primary function is to safeguard downstream electrical equipment, panel wiring, and the motor itself against damaging overloads, phase failures, and short circuits.

Key Specifications:

Device Type: Motor Starter Protector (MSP) / Motor Circuit Breaker (MPCB).

Pole Configuration: 3-Pole (3P) designed for three-phase industrial systems.

Current Range (Thermal Overload Release): 3.5A to 5.0A. It features an adjustable rotary dial on the front face, allowing engineers to precisely match the breaker’s trip point to the specific full-load amperage (FLA) of the connected motor.

Trip Class 10: This rating dictates the trip characteristic under locked-rotor conditions. A Class 10 breaker is designed to trip within 10 seconds when subjected to 600% of its maximum thermal current setting, which is the standard requirement for most industrial motor applications.

Frame Size S00: This represents Siemens’ most compact physical footprint. Size S00 is highly optimized for saving space within tight control panels, electrical enclosures, and standard 35mm DIN rail assemblies.

Short-Circuit Protection: Features a highly responsive electromagnetic release (instantaneous trip) that typically eliminates the need for upstream backup fuses in standard configurations.