Allen-Bradley PLCRSC24DC21 Phoenix Contact Relay Module

The Allen-Bradley PLCRSC24DC21 Phoenix Contact Relay Module is a reliable and efficient component for industrial automation systems. Designed for seamless integration with programmable logic controllers (PLCs), this relay module allows for the control and switching of high-power electrical devices in industrial environments. With a compact form factor and robust performance, the PLCRSC24DC21 module ensures the safe and reliable operation of automation systems by providing reliable relay outputs for controlling motors, lights, and other industrial equipment. It is ideal for applications requiring the switching of AC or DC loads, enhancing system flexibility and improving overall operational efficiency.

Functional Highlights / Key Benefits

• High-Quality Relay Outputs: Provides dependable relay contacts for controlling industrial equipment, ensuring smooth and efficient operation.

• Compact and Space-Saving Design: The module's small form factor enables installation in tight spaces while offering maximum output capacity.

• Easy Integration with PLCs: The relay module is designed for straightforward integration with Allen-Bradley PLCs, ensuring seamless communication and control.

• Versatile Applications: Suitable for both AC and DC load switching, making it highly adaptable for various industrial automation tasks.

• Long-Term Durability: Built with high-quality components, ensuring long-lasting performance and reducing the need for frequent maintenance.

• Flexible Input/Output Configuration: Configurable to meet the specific needs of different applications, supporting diverse system setups.

Technical Specifications / Data

• Model: PLCRSC24DC21

• Manufacturer: Allen-Bradley (Phoenix Contact)

• Type: Relay Module

• Relay Type: Electromechanical Relay

• Control Voltage: 24V DC

• Relay Contacts: 4x SPDT (Single Pole Double Throw)

• Switching Capacity:

• AC: 250V AC, 8A

• DC: 30V DC, 8A

• Operating Temperature Range: -25°C to 60°C (-13°F to 140°F)

• Dimensions: 90 mm x 12 mm x 60 mm (L x W x H)

• Weight: 0.15 kg (0.33 lbs)

• Electrical Life: 10 million cycles

• Mechanical Life: 20 million cycles

• Mounting: DIN Rail Mount

Typical Applications / System Integration / Use Cases
The Allen-Bradley PLCRSC24DC21 Relay Module is commonly used in a variety of industrial automation applications, including:

• PLC-Based Control Systems: The module can be easily integrated into PLC systems for controlling motors, lighting, and other industrial machines.

• Process Automation: Ideal for switching high-power devices like pumps, conveyors, and heating systems in manufacturing and process industries.

• Remote Control Systems: Used in remote control applications where reliable switching of electrical loads is necessary.

• Automated Safety Systems: The module's durable relay contacts make it a reliable component for safety circuits, emergency shut-off systems, and fault detection setups.

• Control of HVAC Systems: It is also effective in controlling HVAC equipment, such as fans, air conditioning units, and heating elements.

Support & Maintenance / Reliability & Service
The PLCRSC24DC21 Relay Module is designed for longevity and ease of maintenance. Rockwell Automation offers extensive customer support, including technical documentation, troubleshooting guides, and service contracts. Regular firmware updates and access to a global network of service professionals ensure continued reliability over the product’s lifespan. Its durable construction and high electrical and mechanical life ratings minimize the frequency of replacements and downtime, contributing to overall system reliability.