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  1. Catalog
  2. SIEMENS
  3. Low-Voltage Controls and Distribution
  4. Relays
  5. Overload Relays
  6. Electronic Overload Relay
Electronic Overload Relay 3RB1, 3RB20, 3RB21 SIRIUS  electronic overload rel 3RB22, 3RB23, 3RB24, 3RB29_6 SIRIUS  electronic overload rel. 3RB30, 3RB31 Sirius nG  elect overload rel standard

Electronic Overload Relay Items 193 - 254 of 254 ⍾ SIEMENS ⍾ Last modified May 28, 2026

Catalog up 3RB1, 3RB20, 3RB21 SIRIUS electronic overload rel 3RB22, 3RB23, 3RB24, 3RB29_6 SIRIUS electronic overload rel. 3RB30, 3RB31 Sirius nG elect overload rel standard

Electronic Overload Relay ⍾ Page 3

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  • SIEMENS 3RB3026-2RB0
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    3RB3026-2RB0

    Overload relay 0.1...0.4 A Electronic For motor protection Size S0, Class 20 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3026-2RE0
    Product details Add to RFQ Add to RFQ

    3RB3026-2RE0

    OVERLOAD RELAY 0.1...0.4 A FOR MOTOR PROTECTION SIZE S0, CLASS 20 CONTACTOR ASS. MAIN CIRCUIT: SPR.-LOAD.TERM. AUX.CIRCUIT: SPR.-LOAD.TERM. MANUAL-AUTOM.-RESET

  • SIEMENS 3RB3026-2SB0
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    3RB3026-2SB0

    Overload relay 3...12 A Electronic For motor protection Size S0, Class 20E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3026-2SB0-Z X95
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    3RB3026-2SB0-Z X95

    OVERLOAD RELAY 3...12 A FOR MOTOR PROTECTION SIZE S0, CLASS 20 CONTACTOR ASS. MAIN CIRCUIT: SCREW CONN. AUX.CIRCUIT: SCREW CONN. MANUAL-AUTOM.-RESET REUSABLE PACKAGING PACKAGE = XX …

  • SIEMENS 3RB3026-2SE0
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    3RB3026-2SE0

    Overload relay 3...12 A Electronic For motor protection Size S0, Class 20 Contactor mounting Main circuit: Spring-type terminal Auxiliary circuit: Spring-type terminal Manual-Autom …

  • SIEMENS 3RB3026-2VB0
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    3RB3026-2VB0

    Overload relay 10...40 A Electronic For motor protection Size S0, Class 20 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3026-2VE0
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    3RB3026-2VE0

    OVERLOAD RELAY 10...40 A FOR MOTOR PROTECTION SIZE S0, CLASS 20 CONTACTOR ASS. MAIN CIRCUIT: SPR.-LOAD.TERM. AUX.CIRCUIT: SPR.-LOAD.TERM. MANUAL-AUTOM.-RESET

  • SIEMENS 3RB3036-1UB0
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    3RB3036-1UB0

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 10E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3036-1UW1
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    3RB3036-1UW1

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 10E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Screw Manual-Au …

  • SIEMENS 3RB3036-1UX1
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    3RB3036-1UX1

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 10E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Spring-type ter …

  • SIEMENS 3RB3036-1WB0
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    3RB3036-1WB0

    Overload relay 20...80 A Electronic For motor protection Size S2, Class 10E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3036-1WW1
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    3RB3036-1WW1

    Overload relay 20...80 A Electronic For motor protection Size S2, Class 10E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Screw Manual-Auto …

  • SIEMENS 3RB3036-2UB0
    Product details Add to RFQ Add to RFQ

    3RB3036-2UB0

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 20E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3036-2UD0
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    3RB3036-2UD0

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 20E Contactor mounting Main circuit: Screw Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset

  • SIEMENS 3RB3036-2UW1
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    3RB3036-2UW1

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 20E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Screw Manual-Au …

  • SIEMENS 3RB3036-2UX1
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    3RB3036-2UX1

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 20E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Spring-type ter …

  • SIEMENS 3RB3036-2WB0
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    3RB3036-2WB0

    OVERLOAD RELAY 20...80 A FOR MOTOR PROTECTION SIZE S2, CLASS 20E FOR MOUNTING ONTO CONTACTORS MAIN CIRCUIT: SCREW TERMINAL AUX. CIRCUIT: SCREW TERMINAL MANUAL-AUTOMATIC-RESET

  • SIEMENS 3RB3036-2WD0
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    3RB3036-2WD0

    Overload relay 20...80 A Electronic For motor protection Size S2, Class 20E Contactor mounting Main circuit: Screw Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset

  • SIEMENS 3RB3036-2WW1
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    3RB3036-2WW1

    Overload relay 20...80 A Electronic For motor protection Size S2, Class 20E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Screw Manual-Auto …

  • SIEMENS 3RB3036-2WX1
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    3RB3036-2WX1

    Overload relay 20...80 A Electronic For motor protection Size S2, Class 20E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Spring-type termi …

  • SIEMENS 3RB3046-1UB0
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    3RB3046-1UB0

    Overload relay 12.5...50 A Electronic For motor protection Size S3, Class 10E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3046-1UD0
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    3RB3046-1UD0

    Overload relay 12.5...50 A Electronic For motor protection Size S3, Class 10E Contactor mounting Main circuit: Screw Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset

  • SIEMENS 3RB3046-1UW1
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    3RB3046-1UW1

    Overload relay 12.5...50 A Electronic For motor protection Size S3, Class 10E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Screw Manual-Au …

  • SIEMENS 3RB3046-1UX1
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    3RB3046-1UX1

    Overload relay 12.5...50 A Electronic For motor protection Size S3, Class 10E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Spring-type ter …

  • SIEMENS 3RB3046-1XB0
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    3RB3046-1XB0

    Overload relay 32...115 A Electronic For motor protection Size S3, Class 10E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3046-1XD0
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    3RB3046-1XD0

    Overload relay 32...115 A Electronic For motor protection Size S3, Class 10E Contactor mounting Main circuit: Screw Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset

  • SIEMENS 3RB3046-1XW1
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    3RB3046-1XW1

    Overload relay 32...115 A Electronic For motor protection Size S3, Class 10E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Screw Manual-Aut …

  • SIEMENS 3RB3046-1XX1
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    3RB3046-1XX1

    Overload relay 32...115 A Electronic For motor protection Size S3, Class 10E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Spring-type term …

  • SIEMENS 3RB3046-2UB0
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    3RB3046-2UB0

    Overload relay 12.5...50 A Electronic For motor protection Size S3, Class 20E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3046-2UD0
    Product details Add to RFQ Add to RFQ

    3RB3046-2UD0

    Overload relay 12.5...50 A Electronic For motor protection Size S3, Class 20E Contactor mounting Main circuit: Screw Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset

  • SIEMENS 3RB3046-2XB0
    Product details Add to RFQ Add to RFQ

    3RB3046-2XB0

    Overload relay 32...115 A Electronic For motor protection Size S3, Class 20E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset

  • SIEMENS 3RB3046-2XW1
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    3RB3046-2XW1

    Overload relay 32...115 A Electronic For motor protection Size S3, Class 20E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Screw Manual-Aut …

  • SIEMENS 3RB3113-4NB0
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    3RB3113-4NB0

    Overload relay 0.32...1.25 A Electronic For motor protection Size S00, Class 5...30 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset Internal  …

  • SIEMENS 3RB3113-4NE0
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    3RB3113-4NE0

    Overload relay 0.32...1.25 A Electronic For motor protection Size S00, Class 5...30 Contactor mounting Main circuit: Spring-type terminal Auxiliary circuit: Spring-type terminal Ma …

  • SIEMENS 3RB3113-4PB0
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    3RB3113-4PB0

    Overload relay 1...4 A Electronic For motor protection Size S00, Class 5...30 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset Internal ground …

  • SIEMENS 3RB3113-4PE0
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    3RB3113-4PE0

    OVERLOAD RELAY 1...4 A FOR MOTOR PROTECTION SIZE S00, CLASS 5...30 CONTACTOR ASS. MAIN CIRCUIT: SPR.-LOAD.TERM. AUX.CIRCUIT: SPR.-LOAD.TERM. MANUAL-AUTOM.-RESET INT. GROUND FAULT D …

  • SIEMENS 3RB3113-4RB0
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    3RB3113-4RB0

    OVERLOAD RELAY 0.1...0.4 A FOR MOTOR PROTECTION SIZE S00, CLASS 5...30 CONTACTOR ASS. MAIN CIRCUIT: SCREW CONN. AUX.CIRCUIT: SCREW CONN. MANUAL-AUTOM.-RESET INT. GROUND FAULT DETEC …

  • SIEMENS 3RB3113-4RE0
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    3RB3113-4RE0

    OVERLOAD RELAY 0.1...0.4 A FOR MOTOR PROTECTION SIZE S00, CLASS 5...30 CONTACTOR ASS. MAIN CIRCUIT: SPR.-LOAD.TERM. AUX.CIRCUIT: SPR.-LOAD.TERM. MANUAL-AUTOM.-RESET INT. GROUND FAU …

  • SIEMENS 3RB3113-4SB0
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    3RB3113-4SB0

    Overload relay 3...12 A Electronic For motor protection Size S00, Class 5...30 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset Internal groun …

  • SIEMENS 3RB3113-4SE0
    Product details Add to RFQ Add to RFQ

    3RB3113-4SE0

    Overload relay 3...12 A Electronic For motor protection Size S00, Class 5...30 Contactor mounting Main circuit: Spring-type terminal Auxiliary circuit: Spring-type terminal Manual- …

  • SIEMENS 3RB3113-4TB0
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    3RB3113-4TB0

    Overload relay 4...16 A Electronic For motor protection Size S00, Class 5...30 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset Internal groun …

  • SIEMENS 3RB3113-4TE0
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    3RB3113-4TE0

    OVERLOAD RELAY 4...16 A FOR MOTOR PROTECTION SIZE S00, CLASS 5...30 CONTACTOR ASS. MAIN CIRCUIT: SPR.-LOAD.TERM. AUX.CIRCUIT: SPR.-LOAD.TERM. MANUAL-AUTOM.-RESET INT. GROUND FAULT  …

  • SIEMENS 3RB3123-4NB0
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    3RB3123-4NB0

    OVERLOAD RELAY 0.32...1.25 A FOR MOTOR PROTECTION SIZE S0, CLASS 5...30 CONTACTOR ASS. MAIN CIRCUIT: SCREW CONN. AUX.CIRCUIT: SCREW CONN. MANUAL-AUTOM.-RESET INT. GROUND FAULT DETE …

  • SIEMENS 3RB3123-4NE0
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    3RB3123-4NE0

    Overload relay 0.32...1.25 A Electronic For motor protection Size S0, Class 5...30 Contactor mounting Main circuit: Spring-type terminal Auxiliary circuit: Spring-type terminal Man …

  • SIEMENS 3RB3123-4PB0
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    3RB3123-4PB0

    Overload relay 1...4 A Electronic For motor protection Size S0, Class 5...30 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset Internal ground  …

  • SIEMENS 3RB3123-4PE0
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    3RB3123-4PE0

    OVERLOAD RELAY 1...4 A FOR MOTOR PROTECTION SIZE S0, CLASS 5...30 CONTACTOR ASS. MAIN CIRCUIT: SPR.-LOAD.TERM. AUX.CIRCUIT: SPR.-LOAD.TERM. MANUAL-AUTOM.-RESET INT. GROUND FAULT DE …

  • SIEMENS 3RB3123-4QB0
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    3RB3123-4QB0

    Overload relay 6...25 A Electronic For motor protection Size S0, Class 5...30 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset Internal ground …

  • SIEMENS 3RB3123-4QE0
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    3RB3123-4QE0

    Overload relay 6...25 A Electronic For motor protection Size S0, Class 5...30 Contactor mounting Main circuit: Spring-type terminal Auxiliary circuit: Spring-type terminal Manual-A …

  • SIEMENS 3RB3123-4RB0
    Product details Add to RFQ Add to RFQ

    3RB3123-4RB0

    OVERLOAD RELAY 0.1...0.4 A FOR MOTOR PROTECTION SIZE S0, CLASS 5...30 CONTACTOR ASS. MAIN CIRCUIT: SCREW CONN. AUX.CIRCUIT: SCREW CONN. MANUAL-AUTOM.-RESET INT. GROUND FAULT DETECT …

  • SIEMENS 3RB3123-4RE0
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    3RB3123-4RE0

    OVERLOAD RELAY 0.1...0.4 A FOR MOTOR PROTECTION SIZE S0, CLASS 5...30 CONTACTOR ASS. MAIN CIRCUIT: SPR.-LOAD.TERM. AUX.CIRCUIT: SPR.-LOAD.TERM. MANUAL-AUTOM.-RESET INT. GROUND FAUL …

  • SIEMENS 3RB3123-4SB0
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    3RB3123-4SB0

    Overload relay 3...12 A Electronic For motor protection Size S0, Class 5...30 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset Internal ground …

  • SIEMENS 3RB3123-4SE0
    Product details Add to RFQ Add to RFQ

    3RB3123-4SE0

    Overload relay 3...12 A Electronic For motor protection Size S0, Class 5...30 Contactor mounting Main circuit: Spring-type terminal Auxiliary circuit: Spring-type terminal Manual-A …

  • SIEMENS 3RB3123-4VB0
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    3RB3123-4VB0

    Overload relay 10...40 A electronic for motor protection frame size S0, class 5...30 for mounting onto contactors main circuit: screw auxiliary circuit: screw manual-automatic RESE …

  • SIEMENS 3RB3123-4VE0
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    3RB3123-4VE0

    OVERLOAD RELAY 10...40 A FOR MOTOR PROTECTION SIZE S0, CLASS 5...30 CONTACTOR ASS. MAIN CIRCUIT: SPR.-LOAD.TERM. AUX.CIRCUIT: SPR.-LOAD.TERM. MANUAL-AUTOM.-RESET INT. GROUND FAULT  …

  • SIEMENS 3RB3133-4UB0
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    3RB3133-4UB0

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 5E...30E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset Internal g …

  • SIEMENS 3RB3133-4UD0
    Product details Add to RFQ Add to RFQ

    3RB3133-4UD0

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 5E...30E Contactor mounting Main circuit: Screw Auxiliary circuit: Spring-type terminal Manual-Automatic-R …

  • SIEMENS 3RB3133-4UW1
    Product details Add to RFQ Add to RFQ

    3RB3133-4UW1

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 5E...30E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Screw Manu …

  • SIEMENS 3RB3133-4UX1
    Product details Add to RFQ Add to RFQ

    3RB3133-4UX1

    Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 5E...30E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Spring-typ …

  • SIEMENS 3RB3133-4WB0
    Product details Add to RFQ Add to RFQ

    3RB3133-4WB0

    Overload relay 20...80 A Electronic For motor protection Size S2, Class 5E...30E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset Internal gro …

  • SIEMENS 3RB3133-4WD0
    Product details Add to RFQ Add to RFQ

    3RB3133-4WD0

    Overload relay 20...80 A Electronic For motor protection Size S2, Class 5E...30E Contactor mounting Main circuit: Screw Auxiliary circuit: Spring-type terminal Manual-Automatic-Res …

  • SIEMENS 3RB3133-4WW1
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    3RB3133-4WW1

    OVERLOAD RELAY 20...80 A FOR MOTOR PROTECTION SIZE S2, CLASS 5E...30E STAND-ALONE INSTALLATION MAIN CIRCUIT: STR.-THR. TRANSF. AUX. CIRCUIT: SCREW TERMINAL MANUAL-AUTOMATIC-RESET I …

  • SIEMENS 3RB3133-4WX1
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    3RB3133-4WX1

    Overload relay 20...80 A Electronic For motor protection Size S2, Class 5E...30E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Spring-type  …

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