Siemens 4 A SIRIUS Motor Protection Unit, 690 V

The Siemens Solid State Overload Relay is engineered for exceptional motor protection, spanning overload classes with an adaptability suited for various installation types. Ideal for both contactor mounting and standalone installations, this device offers robust performance under diverse electrical conditions. With innovative electronic overload release technology and integrated auxiliary contacts, it guarantees comprehensive monitoring and protective functions, which contribute to efficient motor management. The relay’s IP20 protection class ensures safety while providing seamless integration into existing systems. Built to meet rigorous industrial standards, this overload relay is an essential component for optimised motor performance and safety.

Operates effectively across a broad temperature range from 25 °C to +60 °C
Meets stringent industrial standards for safety and reliability
Optimised for electrical endurance ensuring longevity in demanding applications
Supports various operational currents for flexibility in motor protection