SIEMENS SIRIUS 3RV2 interruttore di protezione motore 1,1-1,6A 3 poli S00 morsetti a vite 3RV20211AA10

Protecting motors from overload and short-circuit is critical in industrial control panels. The SIEMENS SIRIUS 3RV2 motor starter protector combines both functions in a compact S00 housing, eliminating the need for separate fuses and overload relays.

Who is it for

Panel builders and maintenance technicians who need reliable motor protection for small three-phase motors up to 1.6 A. It suits applications such as conveyors, pumps, fans, and machine tools where space is limited and quick DIN rail mounting is required.

Main features

• Thermal-magnetic trip unit with adjustable overload release from 1.1 A to 1.6 A
• Fixed short-circuit release at 21 A for fast fault clearing
• 3-pole switching for three-phase loads
• Screw terminals for secure wiring
• Mounts on standard 35 mm DIN rail or by screw fixing
• Class 10 overload protection

Specifications

• Product type: Motor starter protector
• Series: SIRIUS 3RV2
• Size: S00
• Rated operational current: 1.1 - 1.6 A
• Short-circuit release: 21 A
• Number of poles: 3
• Rated operational voltage: up to 690 V AC
• Rated insulation voltage: 690 V
• Rated impulse withstand voltage: 6 kV
• Connection type: Screw terminal
• Mounting type: DIN rail / screw mounting
• Switching capacity: Standard
• Degree of protection: IP20 (terminals)
• Ambient operating temperature: -20 to +60 °C
• Electrical service life: 100,000 switching cycles
• Mechanical service life: 100,000 switching cycles

Tips

Set the overload dial to the motor's full-load current. For motors with high inrush currents, consider using a higher class or a soft starter. Always verify short-circuit coordination with upstream protection.