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Siemens 3TF Series Contactor Replacement Contacts 3TF46,3TF47,3TF48,3TF49,3TF50,3TF51,3TF52

$54.00 NZD
$222.00 NZD $54.00 NZD
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contactor repair kits, Replacement Contact Kits for Siemens 3TF Series Contactors,contactor accessories,contactor spare parts

 3TF46/3TF47/3TF48/3TF49/3TF50/3TF51/3TF52/3TF53/3TF54/3TF55/3TF56/3TF57, Silver Alloy Main Contacts with 1NO+1NC Auxiliary Contacts, 3P Insertion Type, 60Hz AC Contactor Spare Parts

contactor repair kits,contactor accessories

Specifications

This high-quality replacement contact kit is specially designed for Siemens 3TF series AC contactors, covering all models from 3TF46 to 3TF57, as well as 3TF50, 3TF51, 3TF52, 3TK50, 3TS51 and other compatible series. Made of premium silver alloy material, the main contacts ensure excellent electrical conductivity, low contact resistance, and outstanding arc resistance, effectively extending the service life of your contactors and reducing maintenance costs.

With a 3-pole (3P) main contact configuration and 1NO+1NC auxiliary contact design, this contact set is fully compatible with the original Siemens 3TF contactors, supporting 60Hz coil frequency and insertion-type wiring, which is perfect for terminal distribution applications in industrial control, power distribution systems, motor control, and other electrical equipment.

Key Features


  • Wide Compatibility: Fits Siemens 3TF46, 3TF47, 3TF48, 3TF49, 3TF50, 3TF51, 3TF52, 3TF53, 3TF54, 3TF55, 3TF56, 3TF57 series contactors, also compatible with 3TK50, 3TS51 and domestic CJX1 series equivalent models
  • Premium Material: High-purity silver alloy main contacts, anti-welding, high temperature resistant, stable electrical performance
  • Standard Configuration: 3P main contacts + 1NO+1NC auxiliary contacts, air-type arc extinguishing, meeting industrial electrical standards
  • Easy Installation: Insertion-type wiring design, direct replacement for original parts, no modification required
  • Reliable Performance: Suitable for 60Hz AC power systems, ideal for terminal distribution, motor starting, and industrial automation control

Application Scenarios


  • Industrial motor control and protection
  • Low-voltage terminal distribution systems
  • Power distribution cabinets and control panels
  • Mechanical equipment, HVAC systems, and other electrical control applications
  • Replacement and maintenance of Siemens 3TF/CJX1 series AC contactors

DATA SHEET

 

Name PARAMETER Name PARAMETER
Product Name Replacement Contact Kit for Siemens 3TF Series AC Contactors Brand Compatibility Siemens
Model Compatibility 3TF46, 3TF47, 3TF48, 3TF49, 3TF50, 3TF51, 3TF52, 3TF53, 3TF54, 3TF55, 3TF56, 3TF57, 3TK50, 3TS51, CJX1 Series Product Type AC Contactor Contact / Contactor Spare Part
Main Contact Configuration 3-Pole (3P) Auxiliary Contact Form 1NO + 1NC
Main Contact Material Silver Alloy (Silver Point) Arc Extinguishing Medium Air Type
Coil Frequency 60Hz Wiring Method Insertion Type
Application Scene Terminal Distribution, Industrial Control, Motor Control Origin Mainland China, Zhejiang, Wenzhou
Customizable No Product Series Siemens 3TF Series Contact

 

FAQs | Replacement Contact Kit for Siemens 3TF Series AC Contactors

Q1: Which contactor models is this contact kit compatible with?

A1: This replacement contact set fits Siemens 3TF series AC contactors, including 3TF46,3TF47,3TF48,3TF49,3TF50,3TF51,3TF52,3TF53,3TF54,3TF55,3TF56,3TF57, 3TK50,3TS51 and CJX1 series contactors.

Q2: What is included in this contact kit?

A2: This is a 3-pole main contact set, containing 3 moving contacts + 6 fixed contacts. Auxiliary contact configuration: 1NO +1NC.

Q3: What material are the contacts made of?

A3: Main contacts adopt silver alloy (silver point) material, air type arc extinguishing medium.

Q4: What quality grades can I choose?

A4: Three grades available: Grade B (50% silver content), Grade A (85% silver content), Grade A+ (85% silver with upgraded manufacturing). Higher silver grade delivers better arc ablation resistance, lower contact resistance and longer service life under heavy load.

Q5: Is this a direct drop-in replacement for original Siemens contacts?

A5: Yes. It is aftermarket spare part designed for direct replacement. No modification needed for matching compatible contactors.

Q6: What is the function of this contact kit?

A6: Contacts are consumable wearing parts of AC contactors. Replace burnt, arced or worn contacts to restore contactor performance, reduce maintenance cost instead of purchasing a complete new contactor.

Q7: Is this genuine Siemens original product?

A7: This is aftermarket replacement spare part, not genuine OEM Siemens product. It is fully compatible for maintenance repair of 3TF series contactors.

Q8: What application scenarios are these contacts used for?

A8: Widely applied in industrial motor control, power distribution panels, factory automation, HVAC, water pump control and other equipment using Siemens 3TF / CJX1 AC contactors.

Q9: How to select the correct contact kit for my contactor?

A9: Check the model number printed on your existing contactor and match it with our compatible list. If you are unsure, send your contactor model number to us for confirmation before placing an order.

Q10: What is the difference between Grade A and Grade A+?

A10: Both have 85% silver content. Grade A+ has stricter machining tolerance and optimized surface treatment, offering superior anti-welding and anti-ablation performance for frequent switching and heavy continuous load environments.

Q11: Do you accept bulk wholesale orders?

A11: Yes, bulk orders are available for factories, electrical maintenance contractors and distributors. Please contact us to get volume discount pricing.

Care Instructions