Allen Bradley 1756-OB16D Digital DC output module with diagnostics

FAQ

Q1: What is the purpose of the 1756‑OB16D module?
It provides 16 diagnostic DC output channels for a ControlLogix system and supports output status reporting.

Q2: What voltage range does the module support?
It operates over 19.2–30 V DC, with a 24 V nominal source category.

Q3: How much current can each output channel deliver?
Each channel can deliver up to approximately 2 A at 30 °C, derated at higher temperatures.

Q4: What total current can the module handle?
Up to about 8 A total at 30 °C, derated to around 4 A at 60 °C.

Q5: Does the module include isolation?
The module has continuous ~250 V isolation between output groups and backplane but not between individual channels.

Q6: What diagnostic features does it offer?
It supports output status and load diagnostics (on/off, no‑load detect) and electronic fusing per point.

Q7: What are the typical physical size and weight of the module?
It matches a standard 1756 ControlLogix I/O footprint (~300 × 38 × 111 mm) and weighs around 0.38 kg.

Q8: What environmental conditions can it operate in?
It operates from 0 °C to 60 °C with storage down to –40 °C and supports up to 95 % non‑condensing humidity.

1756-OB16D Allen Bradley

We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.

For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.

Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.