Siemens SIRIUS 3RA6 Advanced Motor Starter, DOL, 5.5 kW, 690 V, IP20, 3 → 12 A

The SIRIUS 3RA6 compact starters are a generation of innovative load feeders with the integrated functionality of a circuit breaker,contactor and solid-state overload relay. In addition, various functions of optional mountable accessories (auxiliary switches,surge suppressors) are already integrated in the SIRIUS compact starter.

Three wide voltage ranges and 5 wide setting ranges for the rated current.
Automatic device reset in case of overload and differentiated detection of overload and short-circuit
Efficient power distribution through the related SIRIUS infeed system for 3RA6
Direct connection of the motor feeder cable to the SIRIUS infeed system for 3RA6 thanks to integrated PE bar
Connecting and looping through incoming feeders up to a cross-section of 70 mm²

Power rating is based upon a 4 pole motor at 400Vac.

This advanced motor starter is designed for efficient control and operation of industrial motors. With a power rating of 5.5kW and a voltage capacity of up to 690V, it is ideal for Direct-On-Line (DOL) applications. Measuring 170mm in length, 45mm in width, and 165mm in depth, this IP20-rated starter ensures robust performance in various industrial settings.

• Features overload protection for enhanced motor safety
• High surge voltage resistance up to 6000V for reliability
• Minimal power loss allows efficient energy utilisation
• User-friendly screw terminal connections facilitate easy installation
• Mechanical lifespan of 10 million cycles ensures longevity

• Used for direct starting of three-phase AC motors
• Ideal for industries requiring reliable motor control solutions
• Suitable for automation systems needing robust protection functions
• Effective in environments with high humidity and temperature variability

The starter includes adjustable trip classes for overload protection and can withstand operating short-circuit currents of up to 53kA at 400V. This ensures that the motor is safeguarded from electrical faults.

It operates effectively in ambient temperatures ranging from -20°C to +60°C, making it suitable for various industrial conditions, including those with fluctuating temperatures and humidity levels.

The unit can be mounted vertically or horisontally on standard DIN rails, offering flexibility for installation in different panel configurations while ensuring secure fastening.

Sirius Compact