• Siemens ET 200pro Motor Starters (Standard & High Feature, 0.15-12 A)
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Siemens ET 200pro Motor Starters (Standard & High Feature, 0.15-12 A)

Siemens ET 200pro Motor Starters (Standard & High Feature, 0.15-12 A)

ET 200pro motor starters with high degree of protection for distributed, cabinet-free switching and protection of three-phase motors in the field.

Key features

  • Direct-on-line (DSe) and reversing (RSe) starters, optional 400 V AC brake output
  • Standard and High Feature versions; High Feature with 4 freely configurable inputs
  • Mechanical starters with thermal motor model, electronic starters with full motor protection incl. thermistor
  • Electronic versions can also be parameterized as soft starters
  • Setting ranges 0.15 ... 2 A and 1.5 ... 12 A
  • Operate on backplane bus module and wide module rack (order separately)

Specifications

Brand Siemens
Product line SIMATIC ET 200pro / SIRIUS
Degree of protection IP65
Rated operational voltage 400 V AC
Utilization category AC-3e, IE3/IE4 ready
Mounting Wide module rack with backplane bus module
Category Motor Starters
Source Siemens Catalog IC 10 · 2026, p. 854-855
3RK1304-5KS40-4AA0 Version: Standard, mechanical | Starter: DSe direct-on-line | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: -
3RK1304-5LS40-4AA0 Version: Standard, mechanical | Starter: DSe direct-on-line | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: -
3RK1304-5KS40-4AA3 Version: Standard, mechanical | Starter: DSe direct-on-line | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: -
3RK1304-5LS40-4AA3 Version: Standard, mechanical | Starter: DSe direct-on-line | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: -
3RK1304-5KS40-5AA0 Version: Standard, mechanical | Starter: RSe reversing | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: -
3RK1304-5LS40-5AA0 Version: Standard, mechanical | Starter: RSe reversing | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: -
3RK1304-5KS40-5AA3 Version: Standard, mechanical | Starter: RSe reversing | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: -
3RK1304-5LS40-5AA3 Version: Standard, mechanical | Starter: RSe reversing | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: -
3RK1304-5KS40-2AA0 Version: High Feature, mechanical | Starter: DSe direct-on-line | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: 4 inputs
3RK1304-5LS40-2AA0 Version: High Feature, mechanical | Starter: DSe direct-on-line | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: 4 inputs
3RK1304-5KS40-2AA3 Version: High Feature, mechanical | Starter: DSe direct-on-line | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5LS40-2AA3 Version: High Feature, mechanical | Starter: DSe direct-on-line | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5KS40-3AA0 Version: High Feature, mechanical | Starter: RSe reversing | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: 4 inputs
3RK1304-5LS40-3AA0 Version: High Feature, mechanical | Starter: RSe reversing | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: 4 inputs
3RK1304-5KS40-3AA3 Version: High Feature, mechanical | Starter: RSe reversing | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5LS40-3AA3 Version: High Feature, mechanical | Starter: RSe reversing | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5KS70-2AA0 Version: High Feature, electronic | Starter: sDSSte/sDSte direct-on-line | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: 4 inputs
3RK1304-5LS70-2AA0 Version: High Feature, electronic | Starter: sDSSte/sDSte direct-on-line | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: 4 inputs
3RK1304-5KS70-2AA3 Version: High Feature, electronic | Starter: sDSSte/sDSte direct-on-line | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5LS70-2AA3 Version: High Feature, electronic | Starter: sDSSte/sDSte direct-on-line | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5KS70-3AA0 Version: High Feature, electronic | Starter: sRSSte/sRSte reversing | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: 4 inputs
3RK1304-5LS70-3AA0 Version: High Feature, electronic | Starter: sRSSte/sRSte reversing | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: 4 inputs
3RK1304-5KS70-3AA3 Version: High Feature, electronic | Starter: sRSSte/sRSte reversing | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5LS70-3AA3 Version: High Feature, electronic | Starter: sRSSte/sRSte reversing | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: 4 inputs
Motor StartersSiemens
24 product codes available in this family
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Siemens ET 200pro Motor Starters (Standard & High Feature, 0.15-12 A)

Brand Siemens·Motor Starters

Available part numbers (24)

3RK1304-5KS40-4AA0, 3RK1304-5LS40-4AA0, 3RK1304-5KS40-4AA3, 3RK1304-5LS40-4AA3, 3RK1304-5KS40-5AA0, 3RK1304-5LS40-5AA0, 3RK1304-5KS40-5AA3, 3RK1304-5LS40-5AA3, 3RK1304-5KS40-2AA0, 3RK1304-5LS40-2AA0 + 14 more — see full table ↓

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Product codes & specifications
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Product codeSpec
3RK1304-5KS40-4AA0Version: Standard, mechanical | Starter: DSe direct-on-line | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: -
3RK1304-5LS40-4AA0Version: Standard, mechanical | Starter: DSe direct-on-line | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: -
3RK1304-5KS40-4AA3Version: Standard, mechanical | Starter: DSe direct-on-line | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: -
3RK1304-5LS40-4AA3Version: Standard, mechanical | Starter: DSe direct-on-line | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: -
3RK1304-5KS40-5AA0Version: Standard, mechanical | Starter: RSe reversing | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: -
3RK1304-5LS40-5AA0Version: Standard, mechanical | Starter: RSe reversing | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: -
3RK1304-5KS40-5AA3Version: Standard, mechanical | Starter: RSe reversing | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: -
3RK1304-5LS40-5AA3Version: Standard, mechanical | Starter: RSe reversing | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: -
3RK1304-5KS40-2AA0Version: High Feature, mechanical | Starter: DSe direct-on-line | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: 4 inputs
3RK1304-5LS40-2AA0Version: High Feature, mechanical | Starter: DSe direct-on-line | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: 4 inputs
3RK1304-5KS40-2AA3Version: High Feature, mechanical | Starter: DSe direct-on-line | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5LS40-2AA3Version: High Feature, mechanical | Starter: DSe direct-on-line | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5KS40-3AA0Version: High Feature, mechanical | Starter: RSe reversing | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: 4 inputs
3RK1304-5LS40-3AA0Version: High Feature, mechanical | Starter: RSe reversing | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: 4 inputs
3RK1304-5KS40-3AA3Version: High Feature, mechanical | Starter: RSe reversing | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5LS40-3AA3Version: High Feature, mechanical | Starter: RSe reversing | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5KS70-2AA0Version: High Feature, electronic | Starter: sDSSte/sDSte direct-on-line | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: 4 inputs
3RK1304-5LS70-2AA0Version: High Feature, electronic | Starter: sDSSte/sDSte direct-on-line | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: 4 inputs
3RK1304-5KS70-2AA3Version: High Feature, electronic | Starter: sDSSte/sDSte direct-on-line | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5LS70-2AA3Version: High Feature, electronic | Starter: sDSSte/sDSte direct-on-line | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5KS70-3AA0Version: High Feature, electronic | Starter: sRSSte/sRSte reversing | Setting range: 0.15 ... 2 A | Brake output: No | Inputs: 4 inputs
3RK1304-5LS70-3AA0Version: High Feature, electronic | Starter: sRSSte/sRSte reversing | Setting range: 1.5 ... 12 A | Brake output: No | Inputs: 4 inputs
3RK1304-5KS70-3AA3Version: High Feature, electronic | Starter: sRSSte/sRSte reversing | Setting range: 0.15 ... 2 A | Brake output: 400 V AC | Inputs: 4 inputs
3RK1304-5LS70-3AA3Version: High Feature, electronic | Starter: sRSSte/sRSte reversing | Setting range: 1.5 ... 12 A | Brake output: 400 V AC | Inputs: 4 inputs

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