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Siemens 3TB42 3-Phase Contactor Starter w/ 5-8A Overload Relay, Steel Enclosure

Current Stock:

Product Description

Manufacturer: Siemens

Model: 3TB42

Condition: New Other. This item is in Fair cosmetic condition with only minor blemishes from storage.  The outside is scratched and has tiny spots of corrosion.  The button plastic is faded.  The inside is clean with only some crusties on the black plastic parts.  There are no punched-out holes, so we are pretty sure this is unused old stock The photos show the exact item(s) the buyer will receive.

Notes: No manuals, cords/cables, or additional items are included if not listed or shown.


  • (1) Siemens 3TB4217-0A Contactor
  • (1) Siemens 3UA52 Overload
  • (1) Siemens SXLRB4210A8521H Enclosure
  • CP 3262.01 Enclosure Cat.No. ENC1B44T Installation Instructions
  • CP 3052.7 World Series Contactors 3B Installation/Maintenance Bulletin
  • CP3154 Type 3UA52 Thermal Overload Relays Installation & Maintenance Bulletin


  • Manufacturer: Siemens Energy & Automation
  • Contactor: Siemens Cat.No. 3TB4217-0A (3TB42)
    • 22.5 Amp Max. (NEMA 18A)
    • 600VAC max.
    • NEMA size 0
    • Break all lines
    • (3) power poles
    • (4) auxiliar contacts 2NC 2NO
    • Heavy Duty NEMA A600/P600
    • NEMA Normal/Maximum power:
    • 5HP/15HP 575V 3phase
    • 5HP/10HP 460V 3phase
    • 3HP/5HP 230V 3phase
    • 2HP/3HP 230V 1phase
    • 1HP 115V 1phase
    • IEC AC3 Power: 11kW 660V, 9kW 500V, 7.5kW 380V, 4kW 220V
  • Thermal overload relay: Siemens Cat. No. 3UA52 00-1H
    • Range: 5-8A
    • 660V
    • 3 phase thermal overload
    • Fast-acting NEMA class 10
    • Provides unbalanced and single-phase protection
  • Enclosure: Siemens SXLRB4210A8521H
    • NEMA size 0
    • 3 Latches
    • Blank/without punch-outs sides
    • Panel mounting tabs top and bottom
    • Steel

Unused old stock

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  • Return window is 30 days from delivery date
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CDN Systems LLC, DBA Doug Deals, is not an authorized distributor or affiliated with the manufacturer of this product. Original manufacturer's warranty does not apply.

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