Allen-Bradley 1738-OB8EM8 ArmorPoint DC Output Module

Product Overview

The Allen-Bradley 1738-OB8EM8 operates as a ruggedized, decentralized DC output module within the ArmorPoint product line. This on-machine component switches 24V DC field loads—such as solenoids, indicator lights, and small actuators—directly at the application site. By shifting the I/O interface out of the central control cabinet and directly onto the machinery, this module eliminates intermediate terminal junction boxes and reduces field cabling overhead.

Technical Specifications

Engineering Advantages

• Eliminates Protective Electrical Enclosures: The fully sealed IP67-rated housing repels high-pressure water washdowns, cutting fluids, and airborne dust particles. Engineers mount this module directly onto the machine frame, completely bypassing the need for secondary NEMA terminal boxes.

• Speeds Up Field Component Replacement: Onboard M8 (Pico) quick-disconnect connectors accept pre-molded cordsets natively. This design allows technicians to thread field actuators into place in seconds, preventing wire-termination errors and stripping down machine maintenance timelines.

• Withstands Extreme Thermal Swings: The internal solid-state components operate reliably across an expansive temperature range from -20 °C up to 60 °C. This wide operational thermal band permits direct deployment on factory floors lacking environmental climate control.

• Protects Upstream Network Communication: A 50V continuous electrical barrier isolates the output circuit group from the internal backplane logic. This isolation stops field-side inductive voltage spikes or short-circuits from migrating backward and damaging the main network scanner.

FAQs

• Can I use standard unshielded M8 cables with this module?

  Yes. The 1738-OB8EM8 interfaces with standard 3-pin or 4-pin M8 (Pico) female cordsets for discrete sourcing outputs. For high-noise environments near variable frequency drives, we recommend using shielded M8 cables to block electromagnetic interference.

• Does this item ship in a factory-sealed box?

  Yes. We guarantee this 1738-OB8EM8 module arrives as a 100% brand new, authentic product in its original factory packaging, containing the original instruction sheets and the genuine product barcode (UPC 612598304271).

• What occurs if a short circuit happens on one of the sourcing outputs?

  The module utilizes built-in electronic protection circuitry to monitor downstream conditions. When an overcurrent event occurs, the module controls the fault by limiting the output current, preventing thermal damage to the internal board while protecting the remaining operational channels.