• Siemens SENTRON 5ST3 Auxiliary Switches & Fault Signal Contacts
1 1

Siemens SENTRON 5ST3 Auxiliary Switches & Fault Signal Contacts

Siemens SENTRON 5ST3 Auxiliary Switches & Fault Signal Contacts

SENTRON 5ST3 auxiliary switches (AS), fault signal contacts (FC) and combined AS+FC modules for side mounting on miniature circuit breakers, RCCBs, RCBOs and AFDDs.

Key features

  • Auxiliary switches signal the contact position of the mounted device
  • Fault signal contacts signal automatic tripping (overload, short circuit, fault current)
  • Low power versions for PLC inputs acc. to EN 61131-2
  • Versions with TEST button (AS) or TEST and RESET buttons (FC)
  • UL 489 versions (-0HG) for 5SJ4...-.HG MCBs
  • 5ST3 COM AS+FC with temperature, operating cycle and trip counters via radio to Powercenter 1000

Specifications

Brand Siemens
Product line SENTRON
Mounting Side-mounted on basic unit
Conductor cross-section 0.5 ... 2.5 mm2 (AWG 22 ... 14)
Max. tightening torque 0.5 Nm (4.5 lb-in)
Standards IEC/EN 62019, IEC/EN 60947-5-1
Note 5ST3805-1 handle coupler required for 5SU1
Source Siemens Catalog LV 10 · 2026, p. 322-326
5ST3010 Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3013 Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: For low power | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3013-0XX01 Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: For low power (with diode) | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3011 Type: Auxiliary switch (AS) | Contacts: 2 NO | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3014 Type: Auxiliary switch (AS) | Contacts: 2 NO | Version: For low power | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3012 Type: Auxiliary switch (AS) | Contacts: 2 NC | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3015 Type: Auxiliary switch (AS) | Contacts: 2 NC | Version: For low power | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3016 Type: Auxiliary switch (AS) | Contacts: 1 CO | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST1010-0FP Type: Auxiliary switch (AS) | Contacts: 1 CO | Version: Other device ranges (p. 3/50-3/51)
5ST3010-2 Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: Standard, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3013-2 Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: Low power, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3011-2 Type: Auxiliary switch (AS) | Contacts: 2 NO | Version: Standard, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3014-2 Type: Auxiliary switch (AS) | Contacts: 2 NO | Version: Low power, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3012-2 Type: Auxiliary switch (AS) | Contacts: 2 NC | Version: Standard, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3015-2 Type: Auxiliary switch (AS) | Contacts: 2 NC | Version: Low power, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3010-0HG Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3011-0HG Type: Auxiliary switch (AS) | Contacts: 2 NO | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3012-0HG Type: Auxiliary switch (AS) | Contacts: 2 NC | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3020 Type: Fault signal contact (FC) | Contacts: 1 NO + 1 NC | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3021 Type: Fault signal contact (FC) | Contacts: 2 NO | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3022 Type: Fault signal contact (FC) | Contacts: 2 NC | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3020-2 Type: Fault signal contact (FC) | Contacts: 1 NO + 1 NC | Version: With TEST and RESET button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3021-2 Type: Fault signal contact (FC) | Contacts: 2 NO | Version: With TEST and RESET button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3022-2 Type: Fault signal contact (FC) | Contacts: 2 NC | Version: With TEST and RESET button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3020-0HG Type: Fault signal contact (FC) | Contacts: 1 NO + 1 NC | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3021-0HG Type: Fault signal contact (FC) | Contacts: 2 NO | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3022-0HG Type: Fault signal contact (FC) | Contacts: 2 NC | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3062 Type: AS + FC | Contacts: 1 CO (AS) + 1 CO (FC) | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3062-0MC Type: 5ST3 COM AS + FC | Contacts: 1 CO (AS) + 1 CO (FC) | Version: Measuring/communication, radio | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
AccessoriesSiemens
29 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
RFQ List 0 Email about this

Need a different model, or a part not listed here? Send us your parts list →

Siemens SENTRON 5ST3 Auxiliary Switches & Fault Signal Contacts

Brand Siemens·Accessories

Available part numbers (29)

5ST3010, 5ST3013, 5ST3013-0XX01, 5ST3011, 5ST3014, 5ST3012, 5ST3015, 5ST3016, 5ST1010-0FP, 5ST3010-2 + 19 more — see full table ↓

How to order

Send the Siemens part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

RFQ List 0 →
View full details
Product codes & specifications
0 selected
RFQ List (0)
Product codeSpec
5ST3010Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3013Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: For low power | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3013-0XX01Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: For low power (with diode) | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3011Type: Auxiliary switch (AS) | Contacts: 2 NO | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3014Type: Auxiliary switch (AS) | Contacts: 2 NO | Version: For low power | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3012Type: Auxiliary switch (AS) | Contacts: 2 NC | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3015Type: Auxiliary switch (AS) | Contacts: 2 NC | Version: For low power | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3016Type: Auxiliary switch (AS) | Contacts: 1 CO | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST1010-0FPType: Auxiliary switch (AS) | Contacts: 1 CO | Version: Other device ranges (p. 3/50-3/51)
5ST3010-2Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: Standard, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3013-2Type: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: Low power, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3011-2Type: Auxiliary switch (AS) | Contacts: 2 NO | Version: Standard, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3014-2Type: Auxiliary switch (AS) | Contacts: 2 NO | Version: Low power, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3012-2Type: Auxiliary switch (AS) | Contacts: 2 NC | Version: Standard, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3015-2Type: Auxiliary switch (AS) | Contacts: 2 NC | Version: Low power, with TEST button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3010-0HGType: Auxiliary switch (AS) | Contacts: 1 NO + 1 NC | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3011-0HGType: Auxiliary switch (AS) | Contacts: 2 NO | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3012-0HGType: Auxiliary switch (AS) | Contacts: 2 NC | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3020Type: Fault signal contact (FC) | Contacts: 1 NO + 1 NC | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3021Type: Fault signal contact (FC) | Contacts: 2 NO | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3022Type: Fault signal contact (FC) | Contacts: 2 NC | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3020-2Type: Fault signal contact (FC) | Contacts: 1 NO + 1 NC | Version: With TEST and RESET button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3021-2Type: Fault signal contact (FC) | Contacts: 2 NO | Version: With TEST and RESET button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3022-2Type: Fault signal contact (FC) | Contacts: 2 NC | Version: With TEST and RESET button | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3020-0HGType: Fault signal contact (FC) | Contacts: 1 NO + 1 NC | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3021-0HGType: Fault signal contact (FC) | Contacts: 2 NO | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3022-0HGType: Fault signal contact (FC) | Contacts: 2 NC | Version: Acc. to UL 489 | Width: 0.5 MW | For: 5SJ4...-.HG
5ST3062Type: AS + FC | Contacts: 1 CO (AS) + 1 CO (FC) | Version: Standard | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1
5ST3062-0MCType: 5ST3 COM AS + FC | Contacts: 1 CO (AS) + 1 CO (FC) | Version: Measuring/communication, radio | Width: 0.5 MW | For: 5SL, 5SY, 5SP4, 5SP5, 5SY17, 5SV, 5SU1

Need a different model, or a part not listed here? Send us your parts list →

Related products

All Relays & Switches →