Yokogawa ARM55C-000 Mechanical Relay Output Board

Product Overview

The Yokogawa ARM55C-000 serves as a high-density mechanical relay output board for industrial control systems. This module provides 32 independent dry-contact relay channels, allowing for the switching of diverse AC and DC loads in automation environments. We supply this unit as 100% Brand New and Original, ensuring optimal contact resistance and mechanical integrity for critical interlock and signaling applications.

Technical Specifications

Engineering Advantages

• High-Capacity Switching: The ARM55C-000 manages significant electrical loads up to 250V AC or 30V DC at 2 Amps. This capability eliminates the need for intermediate relay terminals for many standard industrial actuators and solenoids, saving cabinet space and reducing wiring complexity.

• Superior Galvanic Isolation: The board provides a dielectric strength of 1500 V AC between field terminals and the chassis. This robust isolation protects the sensitive 5V DC control logic from high-voltage transients and potential ground loops originating from field devices.

• Secure Mechanical Termination: The module utilizes M3.5 screws for field connections, facilitating a high-torque mechanical grip. This ensures that field wiring remains secure under vibration, preventing the intermittent contact issues often found in tension-style terminals.

• Standardized Rack Integration: The hardware fits perfectly into standard 19-inch racks. This standardized footprint simplifies the organization of high-density I/O clusters and ensures efficient airflow for the 24 V DC power supply components.

FAQs

• Can the ARM55C-000 handle low-current logic signals?

  Yes. While it handles high loads, it also supports a minimum load of 5 V DC @ 10 mA. This versatility allows you to use the same board for both power switching and high-impedance logic feedback.

• What precautions should I take during installation on a 19-inch rack?

  Ensure you tighten all M3.5 screws to the specified torque to prevent arcing at high loads. Also, maintain the ambient temperature within the 0 to 50°C range, as excessive heat can degrade the mechanical lifespan of the relays.

• Does this board require external power for the relays?

  The board requires a 24 V DC external power supply (up to 0.85 A) to drive the relay coils. The control logic itself operates on 5V DC at 10 mA per channel.

• Is this module a direct replacement for older ARM55 series boards?

  The ARM55C-000 represents the latest revision. It maintains backward compatibility with the mounting and electrical specifications of previous ARM55 models. We guarantee this unit is 100% Brand New, providing a longer MTBF (Mean Time Between Failure) than refurbished alternatives.