Relpol NEED-24DC-22-08-4R-D Programmable Relay 24V DC, 8 Inputs, 4 Outputs with Display and Keypad

The Relpol NEED-24DC-22-08-4R-D is a compact and versatile programmable logic relay engineered for precise control in industrial automation and small-scale system management. Operating on a 24V DC power supply, this device serves as a reliable interface for monitoring and controlling various electrical processes. It features an integrated LCD display and a user-friendly keypad, which facilitate direct configuration, parameter adjustment, and real-time status monitoring without the constant need for external programming tools.

Advantages

This programmable relay offers significant flexibility for automation tasks due to its robust design and intuitive interface. The inclusion of both a display and a keypad allows operators to make quick adjustments to control logic or monitor input and output states directly on the device. Its compact form factor ensures it can be easily integrated into existing control cabinets where space is limited, while the relay outputs provide reliable switching capabilities for connected equipment. The device is built to withstand standard industrial environments, ensuring consistent performance and long-term operational stability.

Suitable for

• Small-scale industrial automation systems
• Lighting control and building management
• Pump and motor control applications
• HVAC system monitoring
• Automated gate and barrier control

When it may not be suitable

This device is not intended for complex, high-speed motion control or large-scale industrial processes that require thousands of I/O points and advanced communication protocols. It is designed for simpler logic tasks and may lack the processing power or memory required for highly sophisticated, data-intensive automation projects.

Key specifications

• Supply voltage: 24V DC
• Digital inputs: 8
• Relay outputs: 4
• Interface: Integrated LCD display and keypad
• Mounting: DIN rail compatible

How to use

Installation involves mounting the relay onto a standard DIN rail within a control cabinet. Once powered with 24V DC, the device can be configured using the front-facing keypad and display. Users can program the logic sequences directly through the interface to define how the 8 digital inputs trigger the 4 relay outputs. Ensure all wiring is performed according to the provided technical documentation to prevent damage to the inputs or outputs.

What to consider before purchase

• Verify that your control system requirements do not exceed 8 inputs and 4 outputs.
• Ensure the 24V DC power supply is stable and compatible with the device specifications.
• Check if the physical dimensions fit your existing control panel layout.
• Confirm that the logic complexity of your project is within the capabilities of this programmable relay.

Usage recommendations

Always ensure the power is disconnected before performing any wiring or maintenance on the relay. Regularly inspect the terminal connections to ensure they remain tight and free from oxidation to maintain optimal signal integrity.