SKU: 3DDF-1500
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KW4-3Z-3 AC 125V 5A Micro Limit Switch for 3D Printers

₹16.00 (Inclusive of all taxes)
Out of Stock

This generic KW4-3Z-3 Micro Limit Switch provides reliable position sensing for 3D printers and various mechanical systems. Operating at 125V AC and 5A, it ensures precise control and safety in automated applications.

Features

  • Reliable 125V AC / 5A contact rating for precise control and safety.
  • KW4-3Z-3 design optimized for robust mechanical position sensing.
  • Essential component for accurate 3D printer end-stop detection.
  • Durable construction ensures 100,000 mechanical and electrical life cycles.
  • Compact dimensions ideal for integration into space-constrained assemblies.

Out of stock

Description

This AC 125V 5A Micro Limit Switch, model KW4-3Z-3, is engineered for diverse mechanical applications, offering precise control over the position of moving machine parts. Its versatile design makes it suitable for integration into both AC and DC control circuits, ensuring broad compatibility with existing systems.

Widely utilized across various industries, this limit switch is ideal for home appliances, critical medical devices, office facilities, and a range of instruments. It also finds extensive use in electric motion tools, specialized packing machinery, and automotive electronics, providing reliable performance in demanding environments.

Key Features

  • High Current Capacity: Rated for 5A at 125-250V AC.
  • Low Contact Resistance: Ensures efficient signal transmission with 30mΩ Max.
  • High Insulation Resistance: Provides electrical safety with 100MΩ Min.
  • Robust Dielectric Strength: Withstands 1500VAC for 1 minute, enhancing reliability.
  • Extended Service Life: Offers approximately 100,000 mechanical and electrical cycles.
  • Compact Form Factor: Ideal for space-constrained installations with dimensions of 20x10x7mm.
  • Standard Protection: IP40 rated for protection against solid objects (>1mm).

Applications

  • 3D printer end-stop and homing systems.
  • General mechanical position control in automated systems.
  • Safety interlocks in machinery and industrial equipment.
  • Position detection in home appliances and consumer electronics.
  • Sensing mechanisms in medical devices and office equipment.
  • Automotive electronics and specialized packing machinery.

Technical Specifications

Item TypeMicro Limit Switch
With CableNo
Contact Resistance30mΩ (Max.)
Insulation Resistance100MΩ (Min.)
Dielectric Strength1500VAC for 1 Minute
Mechanical & Electrical Life≈ 100,000 cycles
Protection StandardIP40
Length20mm
Width10mm
Height7mm
Current Rating5A
Voltage Rating125 VAC
Operating Temperature-25 to 130 °C
Weight1g (approx)

Frequently Asked Questions

What is the primary function of the KW4-3Z-3 Micro Limit Switch in 3D printers?

This micro limit switch primarily functions as an end-stop sensor in 3D printers. It detects the physical limits of the print head's travel along an axis, signaling the control board to stop motion. This prevents mechanical collisions and ensures accurate homing, crucial for print quality and machine safety.

Can this limit switch be used in both AC and DC control circuits?

Yes, the KW4-3Z-3 Micro Limit Switch is versatile and designed for compatibility with both AC and DC control circuits. Its contact rating of 125V AC / 5A ensures reliable operation in various electrical environments, making it suitable for a wide range of industrial and hobbyist applications beyond 3D printing.

What does the IP40 protection standard mean for this limit switch?

The IP40 rating indicates that this limit switch is protected against solid objects larger than 1mm, such as wires or small tools. However, it offers no protection against liquids. This makes it suitable for indoor environments where dust might be present, but it should not be exposed to water or high humidity.

What is the expected lifespan of this micro limit switch?

The KW4-3Z-3 Micro Limit Switch boasts a mechanical and electrical life cycle of approximately 100,000 operations. This robust design ensures long-term reliability for frequent use in automation, 3D printing, and other applications where consistent position sensing is critical. Regular inspection is recommended.

Package Includes

  • 1 x AC 125V 5A Micro Limit Switch KW4-3Z-3

Additional Information

Weight 0.001 kg
Dimensions 2 × 1 × 0.7 cm