"🔹 Siemens 3RU2126-1HB0 Thermal Overload Relay Size: S0 Setting Range: 5.5 – 8 A Motor Power: 3 kW / 4 HP Application: Motor protection Description (EN): The Siemens 3RU2126-1HB0 thermal overload relay offers precise protection for motors operating in the 5.5 – 8 ampere range. Designed to be used with contactors of size S0, this reliable relay protects motors with a power rating of up to 3 kW (4 HP) against phase failure, overload, and unbalanced currents. It ensures high operational reliability and quick trip response, making it ideal for general industrial applications. Features: - Adjustable setting range: 5.5 – 8 A - Compatible with Siemens 3RT contactors (Size S0) - Manual and automatic reset functions - Phase failure sensitivity - Compact DIN rail mountable design"