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The 3RA2 fuseless load feeders offer a number of benefits: - Minimum planning and assembly work and far less wiring with the preassembled complete units (only one Article number 3RA2)
- Link modules from motor starter protectors to all types of SIRIUS controls are available, for quicker and error-free assembly of feeders with screw and spring-type connections
- High planning reliability through consistent combination tests for fuseless and fused configurations according to IEX and UL/CSA
- Comprehensive approvals for worldwide usage1)
- High operational reliability through short-circuit breaking capacity of 150 kA with type of coordination "1" and "2"
- Uniform accessories for sizes S00, S0, S2 and S3
- Spring-type connection possible throughout: Enhanced operational reliability (vibration-resistant wiring) and less wiring work thanks to plug-in connections (for S00 and S0 only)
- Power loss 5 to 10 % smaller than for comparable devices, hence lower energy consumption
- Connection of feeders to the control system through standardized system connection (IO-Link and AS-i), for fast integration into TIA and less wiring work
1) Available certifications, and other technical documentation can be found on the Internet at: http://www.siemens.com/industrial-controls/support
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