Overview

This document provides technical specifications and descriptions for a series of micro switches and button switches, including models HK-04G, HK-04G-L, DK4, HK-10, FSK-14, FSK-18, FSK-20, and GNY51. The focus is primarily on the HK-04G and HK-04G-L series micro switches.

Product Models and Types

• HK-04G Series: Micro switches with various terminal, plunger, and push rod options.
• HK-04G-L Series: Similar micro switches with slight dimensional and mechanical variations.
• Other models include DK4, HK-10, FSK-14, FSK-18, FSK-20 (all micro switches), and GNY51 (button switch).

Mechanical and Dimensional Specifications

The switches have compact dimensions approximately 19.8 mm (length) × 10.5–10.7 mm (width) × 6.4–6.5 mm (height), with detailed dimensional tolerances provided for mounting holes and component features. The document includes precise measurements for hole diameters (around 2.0–3.2 mm), spacing, and component thicknesses, ensuring compatibility with various installation requirements.

Material and Construction

• Housing and Cover: Made from high flame-retardant and high-temperature resistant materials via injection molding, assembled with a firm riveting method to ensure durability.
• Contact Points: Silver contacts are used to provide long lifespan and high reliability.

Electrical Specifications

• Rated currents include 5A at 125V/250VAC and 5A at 36VDC, as well as 10A at 125V/250VAC.
• Switch ratings are compliant with 25T125 standards.
• Different models support various current and voltage ratings, suitable for both low and high current applications.

Drive Mechanisms

• Reed Mechanism Drive: Utilized in some HK-04G models, featuring a parallel forced disconnect mode, making them suitable for environments with vibration, high current, and motor loads.
• Spring-Driven Mechanism: Found in HK-04G-LT-130 model, designed for long mechanical lifespan and frequent switching in low current environments.

Applications and Environment Suitability

The switches are designed for high reliability in demanding environments, including those with vibration and motor loads. The use of silver contacts and robust housing materials ensures durability and long service life.

Additional Notes

Various terminals, plungers, and push rods are available to customize the switches for specific applications. The document also references multiple part numbers for different configurations within the HK-04G and HK-04G-L series.