Siemens SIRIUS 3RV2 Motor Starter Protector, 3-Pole, 1.8-2.5 A, Screw Terminal 3RV20111CA25

The Siemens 3RV20111CA25 motor starter protector stands out for its precise thermal-magnetic protection tailored to motors with rated currents between 1.8 and 2.5 A. Unlike generic circuit breakers, this SIRIUS 3RV2 unit combines overload and short-circuit protection in a compact S00 frame, ensuring reliable operation and easy DIN rail mounting.

Highlights

• Adjustable overload release: 1.8 ... 2.5 A
• Instantaneous short-circuit release: 32.5 A
• 3-pole design for three-phase motor protection
• Screw terminals for secure wiring
• High breaking capacity: 100 kA at 400 V AC

In daily use

This motor starter protector is ideal for safeguarding small motors in industrial control panels. Its thermal-magnetic trip mechanism responds quickly to overloads and short circuits, preventing damage and downtime. The front IP20 protection and wide operating temperature range (-20 to +60 °C) ensure dependable performance in various environments.

Full specifications

• Series: SIRIUS 3RV2, Size S00
• Rated operational voltage: 690 V AC
• Rated breaking capacity: 100 kA at 400 V AC, 2 kA at 690 V AC
• Connection: Screw terminal
• Mounting: DIN rail (35 mm) or screw mounting
• Degree of protection: IP20 (front)
• Electrical endurance: 100,000 switching cycles
• Mechanical endurance: 10,000,000 switching cycles
• Standards: IEC 60947-2, IEC 60947-4-1

Final note

Engineered for reliability, the 3RV20111CA25 provides precise motor protection in a compact footprint, making it a trusted choice for industrial applications.