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Allen-Bradley 1771-OVN/B DC Output Module

1. Product Description

The 1771-OVN/B is a 16-channel digital DC output module from Allen-Bradley’s PLC-5 series, designed for industrial automation applications. It provides sourcing-type outputs (10–60V DC) for controlling devices such as relays, solenoids, and indicators in PLC-based control systems .

2. Key Features

16-Channel DC Output – Supports 10–60V DC sourcing outputs, with a nominal 48V DC rating .
High Current Capacity – Each channel rated for 2A (resistive load), with a module total of 8A .
Fast Response Time – ≤0.1ms (OFF to ON) and ≤0.2ms (ON to OFF) for real-time control .
Surge Current Support – Handles 4A surge per channel for 10ms (repeatable every 2s) .
Robust Isolation – 250V AC continuous isolation between field wiring and backplane .
LED Status Indicators – Provides per-channel output status for easy diagnostics .

3. Technical Specifications

Parameter	Specification
Output Type	16 sourcing DC outputs
Output Voltage	10–60V DC (48V nominal)
Current per Channel	2A (resistive) / 0.2A (pilot duty)
Module Total Current	8A
Isolation Voltage	250V AC (channel-to-backplane)
Power Consumption	15.6W (max)
Operating Temp.	0°C to 60°C
Certifications	CE, UL, CSA

4. Applications

Motor Control – Driving contactors and solenoids .
Process Automation – Actuating valves and pumps .
Material Handling – Conveyor and packaging machine control .

5. Installation & Precautions

Wiring Compliance – Use shielded cables for noise-sensitive applications .
Load Matching – Avoid exceeding 2A per channel or 8A module total .
Chassis Compatibility – Works with 1771-A1B to A4B I/O chassis (excluding 1771-A4) .