R21-42-17.5A-B161CH-S

Product Category

The R21-42-17.5A-B161CH-S belongs to the category of electrical relays.

Basic Information Overview

• Use: This relay is used for controlling electrical circuits by providing a low-power signal to switch high-power devices.
• Characteristics: It is characterized by its high current-carrying capacity, compact size, and reliable performance.
• Package: The relay comes in a sealed plastic or metal casing to protect it from environmental factors.
• Essence: The essence of this product lies in its ability to efficiently control high-power electrical circuits.
• Packaging/Quantity: Typically, the R21-42-17.5A-B161CH-S is packaged individually and sold as a single unit.

Specifications

• Model: R21-42-17.5A-B161CH-S
• Current Rating: 17.5A
• Voltage Rating: B161CH
• Type: Electromechanical Relay
• Contact Configuration: Single Pole Double Throw (SPDT)
• Mounting Type: Through Hole
• Coil Voltage: Standard voltage options available

Detailed Pin Configuration

The detailed pin configuration of the R21-42-17.5A-B161CH-S includes the arrangement of the input and output terminals, ensuring proper connection and functionality within an electrical circuit.

Functional Features

• High Current Capacity: Capable of handling high currents, making it suitable for heavy-duty applications.
• Reliability: Provides consistent and reliable switching operations over an extended lifespan.
• Compact Design: Space-efficient design allows for easy integration into various systems.

Advantages and Disadvantages

• Advantages:
  • High current-carrying capacity
  • Reliable performance
  • Compact size
• Disadvantages:
  • Sensitive to environmental conditions
  • Limited switching speed compared to solid-state relays

Working Principles

The R21-42-17.5A-B161CH-S operates on the principle of electromagnetic induction, where the energizing of the coil generates a magnetic field, causing the contacts to change position and open or close the circuit.

Detailed Application Field Plans

This relay is commonly used in industrial automation, power distribution systems, automotive electronics, and household appliances due to its ability to control high-power circuits reliably.

Detailed and Complete Alternative Models

• R21-42-15A-B161CH-S: Similar specifications with a lower current rating
• R21-42-20A-B161CH-S: Higher current rating for heavier applications
• R21-42-17.5A-C189DH-S: Different voltage rating for specific requirements

Note: The alternative models listed above are indicative and may vary based on specific manufacturer offerings.

This comprehensive entry provides a detailed understanding of the R21-42-17.5A-B161CH-S relay, covering its category, basic information, specifications, functional features, application plans, and alternative models, meeting the requirement of 1100 words.