Description
Allen-Bradley 1746-OB16: 16-Channel DC Output Module
Reliable DC Power Control
The Allen-Bradley 1746-OB16 controls sixteen DC loads with your SLC 500 system. It switches 24V DC devices like solenoids and relays. This 1746-OB16 module offers fast response and solid performance. It fits in one slot and handles high current applications.
Key Technical Specifications
Brand: Allen-Bradley
Model: 1746-OB16
Type: 16-Channel DC Output
Output Voltage: 24V DC (10-30V DC range)
Current per Point: 1.5A @ 30°C / 1.0A @ 55°C
Total Module Current: 6.4A max
Response Time: 1.0 ms ON / 0.1 ms OFF
Leakage Current: 1 mA max (OFF state)
Voltage Drop: 0.8V typical @ 1.5A
Backplane Power: 5V DC, 280 mA
Heat Dissipation: 7.6 W total
Operating Temp: 0 to 60°C (32 to 140°F)
Connection: 16 points with single common
Surge Protection: Built-in transient suppression
Status Indicators: 16 green LEDs (one per point)
Isolation: 500V AC for 1 minute
12 Month Warranty
We guarantee this 1746-OB16 module for one full year. It covers any material or workmanship defects. We provide quick repair or replacement service. We ship worldwide using FedEx, UPS, and DHL.
Download Installation Guide
- Learn correct wiring for DC loads.
- Understand current derating at higher temperatures.
- Get programming examples for output control.
- Find troubleshooting tips for LED indicators.
Download SLC 500 Hardware Manual Here
Important Technical Questions
- What types of devices can I control?
You can control solenoids, relays, contactors, lamps, and other 24V DC devices. - How does temperature affect performance?
Output current reduces at higher temperatures: 1.5A at 30°C down to 1.0A at 55°C. - Is there protection for inductive loads?
Yes. Built-in transient suppression protects against voltage spikes from solenoids and relays. - Can I see output status easily?
Yes. Each of the 16 points has a green LED that lights when the output is active. - What is the maximum wire size?
Use up to 14 AWG wire. The module accepts two wires per terminal for easy daisy-chaining.
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