Product Details
Overview
The 1746-OB8 by Allen-Bradley is a compact digital DC output module for SLC 500 PLC systems, designed to deliver reliable high-current outputs in industrial applications.
Technical Specifications
-
Manufacturer: Allen-Bradley
-
Product Line: SLC 500
-
Part Number: 1746-OB8
-
Module Type: Digital DC Output Module
-
Number of Outputs: 8
-
Output Voltage: 10–50 V DC (source)
-
Output Current per Channel: 0.5–1 A
-
Maximum Module Current: 4–8 A
-
Backplane Current (5 V DC): 135 mA
-
Step Response: 60 ms input, 2.5 ms output
-
Applications: High-current digital output tasks
-
Weight: 0.23 kg (0.50 lbs)
Mounting & Connectivity
-
Compatible Racks: Standard SLC 500 racks
-
Function: Enables stable interfacing for multiple DC output channels
FAQ
-
Can the 1746-OB8 support high-current loads?
Yes, it supports up to 1 A per channel with total module current up to 8 A. -
What is the response time of outputs?
The module offers 60 ms input and 2.5 ms output step response for fast switching.
Comparison
Compared with 1746-OB16, the 1746-OB8 provides fewer channels but similar high-current capability in a smaller footprint, ideal for applications with limited rack space.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.
Site Acceptance Testing (SAT) for PLC Control Systems: An Engineering Execution Guide
The Site Acceptance Test (SAT) represents the definitive handover stage in industrial automation projects. While the Factory Acceptance Test confirms cabinet hardware assembly off-site, the SAT validates real-world performance under live site conditions. Consequently, a structured execution strategy prevents equipment damage and guarantees seamless integration into plant operations.