Load feeder without fuse, direct starting AC 400 V, size S2 54 ... 65 A AC 230 V, 50 Hz screw connection for standard rail mounting (also fulfills coordination type 1) coordination type 2, Iq = 100 kA 1NO+1NC (contactor) SIRIUS 3RA21 direct starter for protecting and starting motors. , The 3RA21 direct starter is a tested and factory-preassembled combination of a 3RV2 circuit breaker and a 3RT2 contactor, which are already wired and mechanically and electrically connected. They are climate-resistant, approved worldwide (e.g. IEC and UL/CSA) and IE3/IE4 ready. , The 3RA2 load feeders are available with AC and DC operation in sizes S00, S0 and S2 with setting ranges from 0.14 to 65 A. They are available with screw and spring-loaded connection technology for mounting on a standard mounting rail, screw fastening and mounting on a 60 mm busbar. In addition, we offer over 40,000 other tested combinations of individual devices for protecting, switching and starting a wide variety of applications up to 630 A. , All accessories for the 3RV2 circuit breakers and 3RT2 contactors are standardized for all sizes and can also be used for the load feeders. The optional SIRIUS 3RV29 feeder system (for S00 and S0) significantly reduces the wiring effort. , The 3RA21 load feeders replace the tried and tested 3RA11 series. , Simple, efficient, always up-to-date - the SIRIUS modular system.
| Property | Value |
| Overload release current setting: | 54 to 65 A |
| Voltage type for actuation: | AC |
| Connection type main circuit: | Screw connection |
| Rated operating power at AC-3, 400 V: | 30.0 kW |
| Rated operating current Ie: | 65 A |
| Rated control supply voltage Us at AC 50 Hz: | 230 V |
| With short-circuit release: | yes |
| Protection class (IP): | IP20 |
| Supports protocol for SafetyBUS p: | no |
| Supports protocol for INTERBUS: | no |
| Supports protocol for CAN: | no |
| Supports protocol for ASI: | no |
| Supports protocol for Foundation Fieldbus: | no |
| Conditional rated short-circuit current, allocation type 2, 230 V: | 100000 A |
| Supports protocol for data highway: | no |
| Supports protocol for MODBUS: | no |
| Supports protocol for PROFINET IO: | no |
| Supports protocol for TCP/IP: | no |
| Supports protocol for SERCOS: | no |
| Temperature compensated overload protection: | yes |
| Supports protocol for EtherNet/IP: | no |
| Supports protocol for other bus systems: | no |
| Supports protocol for PROFINET CBA: | no |
| Rated operating current at AC-3, 400 V: | 55 A |
| Supports protocol for SUCONET: | no |
| DIN rail mounting possible: | yes |
| Supports protocol for PROFIsafe: | no |
| Supports protocol for DeviceNet: | no |
| Supports protocol for LON: | no |
| Supports protocol for DeviceNet Safety: | no |
| Ambient temperature, upper limit without restrictions: | 60 °C |
| Conditional rated short-circuit current, allocation type 1, 480 Y/277 V: | 20000 A |
| Conditional rated short-circuit current, Allocation type 2, 400 V: | 100000 A |
| Supports protocol for PROFIBUS: | no |
| Supports protocol for AS-Interface Safety at Work: | no |
| Supports protocol for INTERBUS-Safety: | no |
| With transformer: | no |
| Number of command points: | 1 |
| Suitable for EMERGENCY STOP: | yes |
| Assignment type according to IEC 60947-4-3: | Class 2 |
| External reset possible: | no |
| With fuse: | no |
| Width: | 55 mm |
| Height: | 274 mm |
| Depth: | 150 mm |
