Siemens SIRIUS 3RA1120-1ED24-0BB4 Fuseless Load Feeder
Siemens SIRIUS 3RA1120-1ED24-0BB4 Fuseless Load Feeder (2.8-4A).
The Siemens 3RA1120-1ED24-0BB4 is a fuseless direct-on-line starting load feeder from the SIRIUS 3RA11 series, designed for motor protection. It operates at 400V AC with a current rating of 2.8-4A and features a 24V DC control circuit. This unit provides Type of Coordination 2 protection and has a short-circuit withstand capability of Iq = 50 kA. It is important to note that this is a phased-out product, with the preferred successor being the SIRIUS 3RA2110-1ED15-1BB4.
This load feeder is used for safely starting and protecting three-phase motors in industrial applications. It is commonly found in motor control centers, pump stations, conveyor systems, and other machinery where reliable motor starting and overload protection are required. The fuseless design simplifies installation and maintenance.
Stanlo Automation, a veteran-owned surplus parts distributor, offers components like the Siemens SIRIUS 3RA1120-1ED24-0BB4. We understand the need for both current and legacy parts to maintain industrial operations, providing reliable surplus solutions to minimize downtime.
| Type | Fuseless Direct-on-Line Load Feeder |
| Series | SIRIUS 3RA11 |
| Size | S0 |
| Current Range | 2.8-4A |
| Control Voltage | 24V DC |
| Voltage | 400V AC |
| Coordination | Type 2 (fulfills Type 1) |
| Iq | 50 kA |
| Terminal Type | Screw terminal on 60mm busbar adapter |