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:
