CKRA2420 CRYDOM Solid Relay

Review CRYDOM Solid State Relay 110 To 280vac 20a

The Crydom CKRA2420 Solid State Relay is a versatile and high-performing electrical component designed for various control applications. This relay operates on both 110V and 280VAC input voltage ranges and can handle a maximum current load of up to 20Amperes. The solid-state design ensures reliable and long-lasting performance compared to traditional electromechanical relays.

This Crydom CKRA2420 SSR features an opto-isolated input circuit, which ensures galvanic isolation between the control and load circuits, preventing electrical interference and ensuring the safety of operators. The input circuit accepts a wide range of AC and DC voltage levels, making it suitable for use with various control sources.

The solid-state design of the Crydom CKRA2420 also results in faster switching times, typically in the range of a few microseconds, compared to mechanical relays. This makes it an excellent choice for applications where fast switching is essential, such as in industrial automation, laboratory equipment, and power control systems.

The Crydom CKRA2420 SSR is built with high-quality components to ensure long-term reliability and stability. The output contact rating is 105 C, and the relay can handle a maximum power dissipation of 3.5W. The relay body is compact in size, measuring 56.5 x 35.3 x 21.5mm, making it suitable for installation in a wide range of applications where space is limited.

The Crydom CKRA2420 Solid State Relay is a robust and reliable solution for various control applications, offering the benefits of fast switching, long-lasting performance, and galvanic isolation. It is an excellent choice for applications in industries such as manufacturing, automation, power, and laboratory equipment.

The Crydom CKRA2420 is a solid-state relay (SSR) suitable for 110V to 280VAC applications with a maximum current rating of 20A. Here are some pros and cons that might help you make an informed decision about purchasing this relay.

1. Solid-state design: This type of relay does not have any moving parts, which makes it more reliable and longer-lasting than mechanical relays.

2. High switching frequency: The CKRA2420 can switch at a frequency of up to 20kHz, which is useful in applications where fast switching is required.

3. Low power consumption: Compared to mechanical relays, solid-state relays consume less power when in the off state.

4. No mechanical contact bounce: Since there are no mechanical contacts, there is no contact bounce, which results in cleaner switching and more accurate control.

5. Isolation: SSRs provide electrical isolation between the control circuit and the load, which can be essential in certain applications.

1. Cost: Solid-state relays are generally more expensive than mechanical relays with similar specifications.

2. Limited current handling capacity: The CKRA2420 has a maximum current rating of only 20A, which might not be sufficient for some applications.

3. Size: The relay is relatively larger in size compared to some mechanical relays, which could be a concern in space-constrained applications.

In conclusion, the Crydom CKRA2420 solid-state relay offers several advantages over mechanical relays, such as reliability, fast switching, low power consumption, no mechanical contact bounce, and electrical isolation. However, it also has some disadvantages, including higher cost, limited current handling capacity, and larger size.

Based on the information provided, I would recommend considering the CKRA2420 if you have a need for fast switching, require electrical isolation, and can afford the higher cost. If your application does not require these features, or if you have a higher current requirement, you might want to consider a different relay type or model.

Details:

Light industrial. Crydom CKRA2420 solid state relay,110 to 280vac,20a: relay, electrical connection box clamp, heat sink integral, input current 5 ma at 240 vrms, voltage 110 280v ac, maximum output with 20 a, without switching mode zero crossing, range 24 standards ce certified, csa lr81689, designed in accordance the requirements of iec 62314, rohs compliant, ur e116950, vde 129156, switch component type scr, finger safe yes details. Electrical outlet's. Electrical boxes.

And enclosures. Receptacles.

specifications genpurrelays:

• brand: Crydom
• mpn: Ckra2420
• type: Industrial Electrical Controls Automation Electrical Switches
• features: Solid State Relay, Electrical Connection Box Clamp, Heat Sink Integral, Input Current 5 Ma At 240 Vrms, Input Voltage 110 To 280v Ac, Maximum Output Current With Heat Sink 20 A, Maximum Output Current Without Heat Sink 20 A, Output Switching Mode Zero Crossing, Output Voltage Range 24 To 280v Ac, Standards Ce Certified, Csa Lr81689, Designed In Accordance With The Requirements Of Iec 62314, Rohs Compliant, Ur E116950, Vde 129156, Switch Component Type Scr, Current Type Ac, Finger Safe Yes
• item height: 1.200
• item length: 4.300
• item width: 4.400
• country/region of manufacture: Mx
• custom bundle: No
• weight: 0.6500

shipping genpurrelays:

• type: fixed
• service: standard
• transit: 4-4 days
• class: standard

returns genpurrelays:

• method: money back
• time: 60 days
• policy: returns accepted
• paid by: seller

offer genpurrelays:

• availability: in stock
• sold #: 15
• started: september 12, 2025
• options: ship-to-home
• prices: $55.50–$89.25
• item condition:
  • New
  • New – Open box
  • Nuovo
  • Used

seller genpurrelays:

• rating: 99.6%
• # reviews: 1249304
• city: USA

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• credit card: mastercard

general genpurrelays:

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