SIEMENS SIRIUS 3RV2 Motor Starter Protector 3-pole 11-16A Class 10 Screw Terminal 3RV20114AA25

In industrial control panels, the SIEMENS SIRIUS 3RV2 motor starter protector safeguards motors against overload and short-circuit. This 3-pole base unit is set to trip between 11 and 16 A, making it suitable for motors up to 5.5 kW at 400 V AC. It mounts on a DIN rail or with screws and connects via screw terminals.

Key specifications

• Product type: Motor starter protector (base unit)
• Series: SIRIUS 3RV2, size S00
• Number of poles: 3
• Overload release setting range: 11 - 16 A
• Tripping class: CLASS 10
• Short-circuit release type: Magnetic, fixed
• Rated operational voltage: up to 690 V AC
• Rated insulation voltage: 690 V
• Rated impulse withstand voltage: 6 kV
• Connection type: Screw terminal
• Mounting: DIN rail / screw mounting
• Degree of protection: IP20
• Ambient operating temperature: -20 to +60 °C
• Rated motor power at 400 V AC: 5.5 kW
• Short-circuit breaking capacity at 400 V AC: 100 kA
• Electrical service life: 100,000 switching cycles
• Mechanical service life: 10,000,000 switching cycles

Why choose it

This device combines overload and short-circuit protection in a compact S00 housing. The fixed magnetic release ensures fast tripping on high currents, while the adjustable thermal release allows precise matching to motor full-load current. High breaking capacity and long service life reduce downtime and replacement costs.

Ideal use cases

• Motor protection in industrial machinery and conveyor systems
• Pump and fan control panels
• HVAC equipment
• Packaging and material handling systems

Good to know

The screw terminals accept conductors up to 6 mm². The device is maintenance-free and can be snapped onto a 35 mm DIN rail or fixed with screws. Auxiliary contacts and accessories from the SIRIUS 3RV2 range can be added for signaling and remote control.