• Siemens SENTRON 5ST3 Remote Control Auxiliaries (RCA) & Adapters
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Siemens SENTRON 5ST3 Remote Control Auxiliaries (RCA) & Adapters

Siemens SENTRON 5ST3 Remote Control Auxiliaries (RCA) & Adapters

SENTRON 5ST3 remote control auxiliaries (RCA) for remote switching and automatic reclosing of miniature circuit breakers and residual current devices, with matching adapters.

Key features

  • Remote ON/OFF switching of the mounted protective device
  • Power with ARD versions with automatic reclosing after a fault
  • Extended-function versions for -40 ... +70 °C and railway vibration requirements (IEC/EN 61373)
  • 5ST3 COM versions with wireless communication to SENTRON Powercenter 1000/1100
  • COM versions with automatic RCD and insulation resistance (IR) test
  • Adapters 5ST3820 for combination with 5SY, 5SL, 5SP4/5SP5 and 5SY17 basic units

Specifications

Brand Siemens
Product line SENTRON
Standard IEC/EN 63024
Rated frequency 50 ... 60 Hz
Service life 10000 actuations
Degree of protection IP20
Source Siemens Catalog LV 10 · 2026, p. 330-331
5ST3053 Type: RCA Basic | Rated operational voltage: 12 ... 30 V AC, 12 ... 48 V DC | Width: 1.5 MW | Display: None | Ambient temperature: -25 ... +45 °C
5ST3054 Type: RCA Basic | Rated operational voltage: 177 ... 270 V AC | Width: 2 MW | Display: None | Ambient temperature: -25 ... +45 °C
5ST3055 Type: RCA Power | Rated operational voltage: 12 ... 30 V AC, 12 ... 48 V DC | Width: 2 MW | Display: LED | Ambient temperature: -25 ... +45 °C
5ST3056 Type: RCA Power | Rated operational voltage: 177 ... 270 V AC | Width: 2 MW | Display: LED | Ambient temperature: -25 ... +45 °C
5ST3057 Type: RCA Power with ARD | Rated operational voltage: 12 ... 30 V AC, 12 ... 48 V DC | Width: 2 MW | Display: LED | Ambient temperature: -25 ... +45 °C
5ST3058 Type: RCA Power with ARD | Rated operational voltage: 177 ... 270 V AC | Width: 2 MW | Display: LED | Ambient temperature: -25 ... +45 °C
5ST3070 Type: RCA Power with extended function | Rated operational voltage: 12 ... 30 V AC, 12 ... 48 V DC | Width: 2 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3071 Type: RCA Power with extended function | Rated operational voltage: 170 ... 277 V AC, 77 ... 286 V DC | Width: 2 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3074 Type: RCA with IR test before ARD | Rated operational voltage: 100 ... 240 V AC | Width: 2.5 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3072-0MC Type: 5ST3 COM RCA, communication-capable | Rated operational voltage: 100 ... 240 V AC | Width: 2 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3073-0MC Type: 5ST3 COM RCA with RCD/IR test | Rated operational voltage: 100 ... 240 V AC | Width: 2.5 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3820-1 Type: Adapter for RCA | For: 5SY4-8, 5SP4/5SP5 (1 ... 2 MW)
5ST3820-2 Type: Adapter for RCA | For: 5SY4-8 (3 ... 4 MW), 5SP4/5 (3 ... 6 MW)
5ST3820-6 Type: Adapter for RCA | For: 5SL3/4/6 1 ... 2 MW; 5SL60/5SY17
5ST3820-7 Type: Adapter for RCA | For: 5SL3/4/6 3 ... 4 MW
AccessoriesSiemens
15 product codes available in this family
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Siemens SENTRON 5ST3 Remote Control Auxiliaries (RCA) & Adapters

Brand Siemens·Accessories

Available part numbers (15)

5ST3053, 5ST3054, 5ST3055, 5ST3056, 5ST3057, 5ST3058, 5ST3070, 5ST3071, 5ST3074, 5ST3072-0MC + 5 more — see full table ↓

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Product codeSpec
5ST3053Type: RCA Basic | Rated operational voltage: 12 ... 30 V AC, 12 ... 48 V DC | Width: 1.5 MW | Display: None | Ambient temperature: -25 ... +45 °C
5ST3054Type: RCA Basic | Rated operational voltage: 177 ... 270 V AC | Width: 2 MW | Display: None | Ambient temperature: -25 ... +45 °C
5ST3055Type: RCA Power | Rated operational voltage: 12 ... 30 V AC, 12 ... 48 V DC | Width: 2 MW | Display: LED | Ambient temperature: -25 ... +45 °C
5ST3056Type: RCA Power | Rated operational voltage: 177 ... 270 V AC | Width: 2 MW | Display: LED | Ambient temperature: -25 ... +45 °C
5ST3057Type: RCA Power with ARD | Rated operational voltage: 12 ... 30 V AC, 12 ... 48 V DC | Width: 2 MW | Display: LED | Ambient temperature: -25 ... +45 °C
5ST3058Type: RCA Power with ARD | Rated operational voltage: 177 ... 270 V AC | Width: 2 MW | Display: LED | Ambient temperature: -25 ... +45 °C
5ST3070Type: RCA Power with extended function | Rated operational voltage: 12 ... 30 V AC, 12 ... 48 V DC | Width: 2 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3071Type: RCA Power with extended function | Rated operational voltage: 170 ... 277 V AC, 77 ... 286 V DC | Width: 2 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3074Type: RCA with IR test before ARD | Rated operational voltage: 100 ... 240 V AC | Width: 2.5 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3072-0MCType: 5ST3 COM RCA, communication-capable | Rated operational voltage: 100 ... 240 V AC | Width: 2 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3073-0MCType: 5ST3 COM RCA with RCD/IR test | Rated operational voltage: 100 ... 240 V AC | Width: 2.5 MW | Display: LED | Ambient temperature: -40 ... +70 °C
5ST3820-1Type: Adapter for RCA | For: 5SY4-8, 5SP4/5SP5 (1 ... 2 MW)
5ST3820-2Type: Adapter for RCA | For: 5SY4-8 (3 ... 4 MW), 5SP4/5 (3 ... 6 MW)
5ST3820-6Type: Adapter for RCA | For: 5SL3/4/6 1 ... 2 MW; 5SL60/5SY17
5ST3820-7Type: Adapter for RCA | For: 5SL3/4/6 3 ... 4 MW

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