Siemens SIRIUS 3RA21 size S2 fuseless load feeders: motor starter protector and contactor mechanically and electrically connected by a link module, supplied tested. Saves time in panel building.
Technical data
| Series | 3RA21 |
|---|---|
| Product type | Direct-On-Line Starter (Load Feeder): 3RV2 motor starter protector + 3RT2 contactor + link module, assembled |
| Size | S2 |
| Motor rating (400 V) | 15–37 kW |
| Type of coordination | Type 1 / Type 2 (IEC 60947-4-1) |
| Control voltage | 24 V DC |
| Mounting | DIN rail / screw fixing or 60 mm busbar |
| Connection | Screw or spring-loaded terminals |
Article numbers
| Motor rating 400 V (kW) | In (A) | Setting range (A) | Coordination | Control | Connection | Mounting | Article No. |
|---|---|---|---|---|---|---|---|
| 15 | 29 | 22–32 | Type 2 (150 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2150-4EA35-0NB3 |
| 18.5 | 35 | 28–36 | Type 2 (150 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2150-4PA35-0NB3 |
| 18.5 | 35 | 32–40 | Type 2 (150 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2150-4UA35-0NB3 |
| 22 | 41 | 35–45 | Type 2 (150 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2150-4VA36-0NB3 |
| 22 | 41 | 42–50 | Type 2 (150 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2150-4WA36-0NB3 |
| 30 | 55 | 49–59 | Type 2 (150 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2150-4XA37-0NB3 |
| 30 | 55 | 54–65 | Type 2 (150 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2150-4JA37-0NB3 |
| 37 | 66 | 62–73 | Type 2 (150 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2150-4KA38-0NB3 |
| 15 | 29 | 22–32 | Type 2 (100 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2130-4EA35-0NB3 |
| 18.5 | 35 | 28–36 | Type 2 (100 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2130-4PA35-0NB3 |
| 18.5 | 35 | 32–40 | Type 2 (100 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2130-4UA35-0NB3 |
| 22 | 41 | 35–45 | Type 2 (100 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2130-4VA36-0NB3 |
| 22 | 41 | 42–50 | Type 2 (100 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2130-4WA36-0NB3 |
| 30 | 55 | 49–59 | Type 2 (100 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2130-4XA37-0NB3 |
| 30 | 55 | 54–65 | Type 2 (100 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2130-4JA37-0NB3 |
| 37 | 66 | 62–73 | Type 2 (100 kA) | 24 V DC | Screw | DIN rail / screw fixing | 3RA2130-4KA38-0NB3 |
Motor ratings refer to standard 4-pole motors; the actual starting and rated data of the motor must be considered for selection.
Technical data and article numbers are based on Siemens catalog IC 10 · 2026 (chapter 8, load feeders and motor starters) and are for information only. Image is representative.
For price, stock and lead time, use the Request a Quote button or call +90 533 945 27 94. Sending the article number is enough.
Tags: 3RA21 S2, siemens load feeder, 3RA21, motor starter, 3RA2150-4EA35-0NB3, 3RA2150-4PA35-0NB3, 3RA2150-4UA35-0NB3, 3RA2150-4VA36-0NB3, 3RA2150-4WA36-0NB3, 3RA2150-4XA37-0NB3, 3RA2150-4JA37-0NB3, 3RA2150-4KA38-0NB3, 3RA2130-4EA35-0NB3, 3RA2130-4PA35-0NB3, 3RA2130-4UA35-0NB3, 3RA2130-4VA36-0NB3, 3RA2130-4WA36-0NB3, 3RA2130-4XA37-0NB3, 3RA2130-4JA37-0NB3, 3RA2130-4KA38-0NB3