ABB 1SFN164703R1000 Main contact kit

1. Product Overview

The ABB 1SFN164703R1000 is a Main Contact Kit designed for ABB low‑voltage contactors or motor starters and other power control devices. The main contacts are the fundamental switching elements that carry and interrupt the main current. This kit is used to replace worn, burned, or damaged contacts to restore reliable switching performance and extend the service life of the equipment.

2. Main Technical Specifications (Typical)

• Model: 1SFN164703R1000

• Product Name: Main Contact Kit

• Applicable Devices: ABB magnetic contactors/motor starters (confirm based on specific model)

• Component Type: Main contact assembly

• Number of Contacts: Multi‑pole main contacts (e.g., 3‑pole configuration)

• Contact Material: Silver alloy or equivalent industrial grade

• Rated Current: Matches the rated current of the contactor (per contactor nameplate)

• Mechanical Life: Compliant with original equipment standards

• Electrical Life: Meets industrial switching requirements

• Installation: Plug‑in or screw mount (depends on design)

• Operating Temperature: -25 ℃ to +55 ℃

• Protection Rating: Per the host contactor’s enclosure rating

Note: The main contact kit must be compatible with the specific contactor model; please confirm compatibility before installation.

3. Advantages and Features

• Restores Device Performance
  Replacing worn or damaged contacts restores the switch’s electrical performance.

• Enhanced Durability
  High‑quality contact material improves conductivity and arc resistance, enhancing longevity.

• Easy Maintenance
  Modular kit design allows for quick on‑site replacement, reducing downtime.

• OEM Compatibility
  Designed to original ABB specifications for fit and reliability.

• Improved Safety
  Optimized contact material and design reduce arc damage and poor contact risk.

4. Applications

• Replacement and maintenance of contactor main contacts

• Maintenance of low‑voltage motor control units

• Industrial automation control cabinet servicing

• Power distribution system maintenance

• Pump, fan, and industrial load switch unit servicing

5. Precautions for Installation and Use

1. Power Off Before Replacement: Ensure that all power is disconnected and no residual voltage is present;

2. Verify Compatibility: Confirm that the contact kit is compatible with the specific contactor model;

3. Inspect Mechanical Parts: Check the contact holder, springs, and other mechanical parts before replacement;

4. Clean Contact Surfaces: Remove dirt, oxidation, and debris before installing new contacts;

5. Secure Installation: Ensure the contact assembly is firmly fixed to avoid poor contact;

6. Test After Installation: Perform no‑load and load tests to verify stable contact operation.

The structure and details of the product：

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