KNOX50056855-700-CRT5 ALLEN-BRADLEY Control Relay

Review ALLEN-BRADLEY 700-crt5 Ser. Control Relay

The Allen-Bradley Knox 50056855-700-CRT5 700-CRT5 Control Relay is a versatile and reliable component designed for use in various automation applications. This control relay, manufactured by Rockwell Automation, is part of the Knox Series and is well-known for its rugged construction and high performance.

The 700-CRT5 Control Relay is a solid-state, current-operated, and normally open (NO) device. It is rated for a maximum voltage of 277VAC (50/60Hz) and a maximum current of 1A at 125VAC or 0.5A at 277VAC. This relay is suitable for applications where precise control and fast response times are essential.

The relay features a compact design, measuring approximately 3.8 x 2.9 x 1.4 inches (96.5 x 74.1 x 35.6 mm), making it ideal for space-constrained installations. It also comes with a separate mounting bracket, which allows for easy installation and mounting in a control panel or other suitable location.

This control relay utilizes a common, normally open (CNO) configuration, with one common terminal and two normally open contacts. The contacts are rated for a contact voltage of 277VAC and a contact current of 5A at 277VAC. The contacts are also rated for a contact life of 10,000,000 cycles, ensuring long-lasting performance.

The 700-CRT5 Control Relay is built to withstand harsh environments, with a temperature rating of -30 C to 70 C (-22 F to 158 F). It also features a sealed construction, making it resistant to moisture and other contaminants.

This control relay is easy to wire and operate. It comes with a clear, red LED indicator, which illuminates when the relay is energized. It also includes a test switch, which allows users to manually test the relay contacts.

The Allen-Bradley Knox 50056855-700-CRT5 700-CRT5 Control Relay is an essential component for automation systems that require precise control and fast response times. Its rugged construction, high performance, and easy installation make it a popular choice for various industries, including manufacturing, oil and gas, and water and wastewater treatment.

The Allen-Bradley KNX50056855-700-CRT5 control relay is a commonly used industrial control component. Here are some pros and cons that might help you decide whether to purchase this relay:

1. Versatility: The CRT5 control relay is a universal, multi-function relay that can be used in a variety of applications, including motor control, timer functions, and sequencing.

2. Durability: Allen-Bradley relays are known for their high-quality construction and long-lasting performance in harsh industrial environments.

3. Ease of Use: The CRT5 relay is easy to install and program using Rockwell Automation's RSLogix 5000 or Studio 5000 software.

4. Diagnostic Capabilities: The relay provides diagnostic information that can help troubleshoot problems, reducing downtime and maintenance costs.

5. Compatibility: The CRT5 relay is compatible with a wide range of Allen-Bradley and Rockwell Automation control systems.

1. Cost: The Allen-Bradley CRT5 control relay is more expensive than some other relays on the market.

2. Complexity: The versatility and programmability of the CRT5 relay can make it more complex to install and configure than simpler relays.

3. Size: The CRT5 relay is larger than some other relays, which can make it more difficult to install in tight spaces.

In conclusion, the Allen-Bradley KNX50056855-700-CRT5 control relay offers high-quality performance, versatility, and diagnostic capabilities, but it comes with a higher price tag and greater complexity compared to some other relays. If you require a reliable and versatile control component for your industrial application, the CRT5 relay may be worth the investment. However, if you have a simpler application and a tighter budget, you may want to consider a less expensive and less complex relay. Ultimately, the decision to purchase the Allen-Bradley KNX50056855-700-CRT5 control relay depends on your specific application requirements and budget.

Details:

This particular model is part of the 700-crt5 series and has a service tag a with white housing WHO. The Allen Bradley 700-crt5 ser.

specifications genpurrelays:

• brand: Allen-bradley
• mpn: Knox50056855-700-crt5
• part type: Control

offer genpurrelays:

• sold #: 29
• availability: in stock
• started: august 24, 2025
• options: ship-to-home
• in stock #: 2
• prices: $35.00–$61.00
• item condition:
  • New – Open box
  • New

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