Siemens SIRIUS 3RF Series

System overview
1.7 Components and combinations
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
49
1.7.1.3 SIRIUS 3RW30/40 soft starters
3RW30/40 soft starters
Figure 1-16 S0 soft starter
The SIRIUS 3RW30 soft starters for standard applications in 200 to 480 V systems
(3RW40: 200 to 600 V) provide basic functionalities at cost-optimized prices:
Table 1- 11 3RW30/40 soft starters
Area Customer benefits
Functions
 Soft starting for simple startup conditions
 Integrated bypass contact system
 Integrated protection functions for motor starter and soft starter (3RW40)
 2-phase "polarity balancing" control method (consistently up to 250 kW)
 Thermistor motor protection (optional with 3RW40)
 Settable current limiting (3RW40)
Dimensioning and
design
 Performance increase of 2 performance classes in smaller sizes:
– S00 up to 17.6 A
– S0 up to 38 A
– S2 up to 72 A
 45 mm width (18.5 kW/38 A)
 Screw-type and spring-loaded terminals
Mounting
advantages
 Easy commissioning and maintenance
 Matched with the SIRIUS modular system
 Easy retrofitting with wiring already installed
 Parameterizable output (3RW40)
Application
areas/customer
benefits
 Considerable power savings through integrated bypass contact system
 Adjustable tripping classes (3RW40)
 Integrated diagnostics functions (3RW40)
 Comprehensive approvals for global applicability, also ATEX (3RW40)
Reference
More information ... Is available in ...
About SIRIUS 3RW30/40 soft starters Manual "SIRIUS 3RW30/3RW40 Soft Starters"
(http://support.automation.siemens.com/WW/view
/en/38752095)
(order no.: 3ZX1012-0RW30-1AC1)