Compact motor starter

The Sirius 3RA6 compact starter is designed to be a

“one-stop” motor starter for 3-phase ac standard motors up to 32 A. The compact

weld-free starter offers the combined functionality of a circuit breaker,

contactor and electronic overload relay to reduce engineering and assembly

costs while simplifying commissioning.

The starter has a wide range of settings up to 32 A of rated

current, along with three wide voltage ranges for ac/dc current with 24 V; 42 V

to 70 V; and 110 V to 240 V. The compact starters are available as direct or

reversing starters.

With the associated control kit, users can perform an early

check of the wiring and motor direction before the plant begins operations. The

safe shutdown at the end of service life and separate indication of overload,

short-circuit and auto reset following an overload trip also help increase

uptime. The removable spring-loaded and screw-type terminals simplify device

replacement, providing easy maintenance.

The compact starter can be connected directly to the

AS-Interface. The AS-I module can easily be connected to the starter and used

as an A/B slave on AS-Interface. All the diagnostics and status data of the

starter are forwarded directly to the higher-level controller via a network,

which offers expanded diagnostics from the motor starter while minimizing

wiring requirements.

Siemens Energy & Automation Inc.

www2.sea.siemens.com/Products/Controls/Product/Soft-Starters.htm

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