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Siemens SIRIUS 3RA21 Direct-On-Line Starter (Load Feeder) Size S0, 24 V DC (1.5–15 kW)

Siemens SIRIUS 3RA21 Direct-On-Line Starter (Load Feeder) Size S0, 24 V DC (1.5–15 kW)

  • Brand: Siemens
  • Product Code: 3RA21 S0

Prices are prepared per project according to capacity, energy type and delivery terms.

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Siemens SIRIUS 3RA21 size S0 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

Series3RA21
Product typeDirect-On-Line Starter (Load Feeder): 3RV2 motor starter protector + 3RT2 contactor + link module, assembled
SizeS0
Motor rating (400 V)1.5–15 kW
Type of coordinationType 1 / Type 2 (IEC 60947-4-1)
Control voltage24 V DC
MountingDIN rail / screw fixing or 60 mm busbar
ConnectionScrew or spring-loaded terminals

Article numbers

Motor rating 400 V (kW)In (A)Setting range (A)CoordinationControlConnectionMountingArticle No.
1.53.63.5–5Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-1FA24-0BB4
2.24.94.5–6.3Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-1GA24-0BB4
36.55.5–8Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-1HA24-0BB4
48.57–10Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-1JA24-0BB4
5.511.59–12.5Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-1KA24-0BB4
7.515.510–16Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-4AA26-0BB4
7.515.513–20Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-4BA27-0BB4
112216–22Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-4CA27-0BB4
112218–25Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-4DA27-0BB4
152823–28Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-4NA27-0BB4
152927–32Type 2 (150 kA)24 V DCScrewDIN rail / screw fixing3RA2120-4EA27-0BB4
1.53.63.5–5Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-1FE24-0BB4
2.24.94.5–6.3Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-1GE24-0BB4
36.55.5–8Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-1HE24-0BB4
48.57–10Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-1JE24-0BB4
5.511.59–12.5Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-1KE24-0BB4
7.515.510–16Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-4AE26-0BB4
7.515.513–20Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-4BE27-0BB4
112216–22Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-4CE27-0BB4
112218–25Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-4DE27-0BB4
152823–28Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-4NE27-0BB4
152927–32Type 2 (150 kA)24 V DCSpring-loadedDIN rail / screw fixing3RA2120-4EE27-0BB4
1.53.63.5–5Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-1FD24-0BB4
2.24.94.5–6.3Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-1GD24-0BB4
36.55.5–8Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-1HD24-0BB4
48.57–10Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-1JD24-0BB4
5.511.59–12.5Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-1KD24-0BB4
7.515.510–16Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-4AD26-0BB4
7.515.513–20Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-4BD27-0BB4
112216–22Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-4CD27-0BB4
112218–25Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-4DD27-0BB4
152823–28Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-4ND27-0BB4
152927–32Type 2 (150 kA)24 V DCScrew60 mm busbar system3RA2120-4ED27-0BB4
1.53.63.5–5Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-1FH24-0BB4
2.24.94.5–6.3Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-1GH24-0BB4
36.55.5–8Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-1HH24-0BB4
48.57–10Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-1JH24-0BB4
5.511.59–12.5Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-1KH24-0BB4
7.515.510–16Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-4AH26-0BB4
7.515.513–20Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-4BH27-0BB4
112216–22Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-4CH27-0BB4
112218–25Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-4DH27-0BB4
152823–28Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-4NH27-0BB4
152927–32Type 2 (150 kA)24 V DCSpring-loaded60 mm busbar system3RA2120-4EH27-0BB4

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.

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