HD4875 CRYDOM Solid Relay

Review CRYDOM Solid-state Relay Output 480v 75a Input Used

The Crydom HD4875 is a solid-state relay (SSR) designed for heavy-duty applications requiring high current capacity and voltage handling. This particular model is specifically engineered to switch 75 Amperes at a maximum voltage of 480 Volts. Solid-state relays incorporate no moving parts, making them superior in terms of experience fewer mechanical failures, longer operational life, and a much faster switching response time as compared to traditional electromechanical relays.

The HD4875 features a compact size of 5.4 x 3.2 inches, which allows for easy installation in a variety of control panels. The SSR comes with a built-in optoisolator that forms an optical barrier between the control and load circuits, ensuring reliable electromagnetic interference protection and enhancing system safety. This isolation allows the control and load circuits to function independently, providing increased system stability.

This Crydom model operates over a temperature range of -20 C to 85 C (-4 F to 185 F), ensuring reliable performance in various environmental conditions. The SSR is also RoHS compliant and features a UL and CE listed design, making it suitable for use in various industries and applications.

The HD4875 provides an input voltage range of 3-32 Volts DC and can switch loads up to 480 Volts AC or DC. It incorporates a low on-state voltage drop of approximately 0.3V, resulting in minimal power loss and improved overall system efficiency. Plus, it has a maximum switching frequency of around 50 Hz, making it ideal for various industrial applications. The thermal protection feature safeguards the SSR from potential thermal runaway or damage from overloading.

Maintenance-free and easy to use, the HD4875 solid-state relay eliminates the need for frequent replacement of contacts and delivers consistent switching performance over time. Dedicated to excellent build quality, Crydom's HD4875 is a dependable and cost-effective heavy-duty SSR solution for manufacturers, electrical engineers, and system integrators.

Pros and Cons of Buying Crydom HD4875 Solid-State Relay (480V, 75A, 3-32V)

* **High Load Capacity**: The Crydom HD4875 solid-state relay is rated for a maximum load of 75A, allowing it to handle heavy loads that traditional relays might not be able to manage.

* **Fast Switching Time**: Unlike mechanical relays, solid-state relays (SSRs) offer almost instantaneous switching times, which is beneficial for applications where quick response is essential.

* **Long Operating Life**: SSRs typically have a longer operational life than mechanical relays due to the absence of moving parts that can wear out over time.

* **Immunity to Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI)**: Since SSRs do not use mechanical components, they are immune to EMI/RFI.

* **Compact Size**: Given its high loading capacity, the Crydom HD4875 SSR is remarkably compact compared to a traditional relay with similar specifications.

* **Complex Integration**: The integration of a solid-state relay might be more complex than a traditional relay due to requirements like heat sinking and proper installation for a 480V relay.

* **Cost**: SSRs can be more expensive than their mechanical counterparts, so the cost may be a significant factor when considering this unit with such high power handling capabilities.

**Conclusion**: The Crydom HD4875 solid-state relay (480V, 75A, 3-32V) is an excellent option for applications requiring high current capacity, fast switching, and the absence of electromagnetic or radio frequency interference. Despite the higher cost, the advantages it offers - such as a longer operational life, compact size, and quicker response time - often outweigh the disadvantages.

**Recommendation**: If your project calls for a heavy-duty solid-state relay with a contact voltage range of 3-32V and a high 75A load in a 480V environment, the Crydom HD4875 relay is a solid contender. Consider the complex integration requirements, higher price point, and the benefits it provides before making your final decision. Weighing these factors against your use case will help you determine if this SSR is the right choice for your specific application.

Details:

The cost of combined shipping depends on weight, location buyer and size box. Ups 2 day air am. Crydom HD4875 solid-state relay, output: 480v 75a, input: 3-32V.

Ups next day am. These services include: ups 3 day select. Prices for these options may differ from standard ground shipping. Item is sold as pictured.

specifications genpurrelays:

• brand: Crydom
• mpn: Hd4875
• part type: 480v

offer genpurrelays:

• options: ship-to-home
• availability: in stock
• best offers: true
• started: november 27, 2024
• sold #: 23
• in stock #: 5
• prices: $44.99–$125.00
• item condition:
  • New – Open box
  • Seller refurbished
  • New
  • Used

shipping genpurrelays:

• carrier: usps, ups
• transit: 5-8 days
• service: usps first class, ups ground, usps priority mail, ups next day air
• class: standard, expedited, one-day
• type: calculated

payments genpurrelays:

• check
• other
• money order
• credit card: visa
• wallet: apple-pay

general genpurrelays:

• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

returns genpurrelays:

• time: 30 days
• method: money back
• policy: returns accepted
• paid by: buyer

seller genpurrelays:

• city: kawkawlin, michigan
• rating: 99.6%
• # reviews: 20930