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Replacement Contact Kits for Siemens 3TB Series AC Contactors 3TB44/3TB45/3TB46/3TB47/3TB48/3TB58

$37.60 USD
$36.40 USD $37.60 USD
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contactor repair kits,Replacement Contact Kits for Siemens 3TB Series AC Contactors

 3TB44/3TB45/3TB46/3TB47/3TB48/3TB50/3TB52/3TB54/3TB56/3TB58, 3P 3Movable 6Stationary Silver Alloy Main Contacts, Industrial Contactor Spare Parts

Description


This premium replacement contact kit is specially designed for Siemens 3TB series AC contactors, covering all models from 3TB44 to 3TB58. Crafted from high-purity silver alloy material, the main contacts deliver exceptional electrical conductivity, ultra-low contact resistance, and outstanding arc & welding resistance, significantly extending the service life of your contactors and reducing maintenance downtime and costs.

With a standard 3-pole (3P) configuration of 3 movable + 6 stationary contacts per set, this contact set is a direct, drop-in replacement for original Siemens parts, ensuring a perfect fit and reliable performance for industrial motor control, low-voltage terminal distribution, power distribution cabinets, and automation systems.

Key Features


  • Full Model Compatibility: Fits all Siemens 3TB series contactors (3TB44, 3TB45, 3TB46, 3TB47, 3TB48, 3TB50, 3TB52, 3TB54, 3TB56, 3TB58)
  • Premium Silver Alloy Material: High-conductivity silver points, high temperature resistant, anti-welding, stable electrical performance for heavy-duty industrial use
  • Standard Configuration: 3P main contacts (3 movable + 6 stationary) per set, air-type arc extinguishing, meeting IEC international electrical standards
  • Direct Replacement: No modification required, easy installation, perfect fit for original Siemens contactors
  • Wide Application: Ideal for industrial motor control, terminal distribution, power distribution systems, mechanical equipment, HVAC, and automation control

Application Scenarios


  • Industrial motor starting and control
  • Low-voltage terminal distribution systems
  • Power distribution cabinets and control panels
  • Mechanical equipment, conveyor systems, and HVAC systems
  • Maintenance and replacement of Siemens 3TB series AC contactors

DATA SHEET

Name Parameter

Product Name

 Replacement Contact Kit for Siemens 3TB Series AC Contactors
Brand Compatibility Siemens
Model Compatibility 3TB44, 3TB45, 3TB46, 3TB47, 3TB48, 3TB50, 3TB52, 3TB54, 3TB56, 3TB58
Product Type AC Contactor Contact / Contactor Spare Part
Main Contact Configuration 3-Pole (3P), 3 Movable + 6 Stationary (Per Set)
Main Contact Material Silver Alloy (Silver Point)
Arc Extinguishing Medium Air Type
Application Scene Terminal Distribution, Industrial Control, Motor Control
Origin Mainland China, Zhejiang, Wenzhou
Customizable No
Product Series Siemens 3TB Series Contact

 

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

Q1: Which contactor models does this contact kit fit?

A1: This replacement contact set is compatible with Siemens 3TB series AC contactors: 3TB44, 3TB45, 3TB46, 3TB47, 3TB48, 3TB50, 3TB52, 3TB54, 3TB56, 3TB58.

Q2: What is included in one set?

A2: 3-Pole (3P) contacts, each set contains 3 movable contacts + 6 stationary contacts. The main contact material is silver alloy (silver point).

Q3: What quality grade is available?

A3: Grade A (85% silver content). High silver content delivers excellent arc resistance, low contact resistance and extended service life for frequent switching heavy-duty applications.

Q4: Is this genuine Siemens OEM spare part?

A4: This is aftermarket replacement spare part, not genuine Siemens original part. It is designed for direct drop-in replacement for maintenance & repair of Siemens 3TB series contactors.

Q5: What is the function of this contact kit?

A5: Contacts are consumable wearing parts for AC contactors. Replace burnt, pitted or worn contacts to restore contactor performance, saving cost instead of purchasing a brand-new complete contactor.

Q6: What applications are these contacts suitable for?

A6: Widely used for industrial motor control, power distribution cabinets, factory automation, HVAC systems, water pump control and other equipment fitted with Siemens 3TB AC contactors.

Q7: How do I select the correct contact kit for my contactor?

A7: Check the model number marked on your existing Siemens contactor and match it to our compatible list. If you are unsure, send your contactor model number to us for confirmation before placing your order.

Q8: Does this kit come with auxiliary contacts?

A8: This listing only includes 3-pole main contacts. Auxiliary contacts are not included.

Q9: Can I place bulk wholesale orders?

A9: Yes, wholesale pricing is available for electrical contractors, maintenance firms and distributors. Please contact us for volume discount.

Q10: What is the advantage of Grade A 85% silver alloy contacts?

A10: 85% silver alloy material features outstanding anti-arc ablation and anti-welding performance, stable conductivity, ideal for heavy loads and high-frequency switching industrial scenarios.

Care Instructions