Overview
The Allen-Bradley 1771-OW16 is an electromechanical relay contact output module designed for Allen-Bradley PLC-5 systems and 1771 I/O chassis. This module features a total of 16 grouped outputs with economical design for power applications, with each of its output independently isolated from the logic circuitry. The 1771-OW16 is ideal for applications requiring direct contact switching of external loads without solid-state intermediaries.
Key Features
- Eight (8) channels of Normally open contacts and Eight (8) channels of selectable Normally Open or Normally Closed contacts
- 16 point outputs, 2 AMP per channel, 24-250 VAC rated
- Each output independently isolated from the logic circuitry
- Compatible with 1/2 slot and 1 slot addressing
- Module powered by the backplane power provided by the system power supply
- Requires a resistor-capacitor (RC) network filter across the module’s contacts to suppress arcing and minimize electromagnetic noise (EMI)
Technical Specifications
- Output Type: 8 N.O. and 8 Selectable contacts
- Output Voltage Range: 24-250 VAC and 24-150 VDC
- Amperage: 2 AMP
- Frequency: 50/60 HZ
- Contact Isolation: 250V basic system to user side; 125V basic between channels; tested to 1500 V ac for 60 s
- Backplane Current: 1300 MA
- Operating Temperature: 0 – 60 degrees C
- Weight: 1.12 lbs
- Certifications: C-TICK, CE, CSA, MARINE, UL
Typical Applications
The 1771-OW16 is well-suited for industrial automation control requiring relay-based switching of external AC/DC loads. Common applications include:
- Motor starter contactor control
- Solenoid valve actuation
- Alarm and indicator lamp circuits
- Power distribution and load switching in legacy PLC-5 control systems
- Process automation requiring isolation between logic and field devices
Compatibility & Replacements
Compatible With
- 1771 chassis such as 1771-A1B thru A4B or later 1771 I/O chassis
- Allen-Bradley PLC-5 processors
- 1771 series I/O systems
- Field wiring via the Allen-Bradley 1771-WN wiring arm
Replaces / Drop-In Replacement For
ALLEN BRADLEY 1771-OW16/A, ALLEN BRADLEY 1771OWL6A, ALLEN BRADLEY 1771OWL6B, ALLEN BRADLEY 1771-OW16/B, ALLEN BRADLEY 17710W16A, ALLEN BRADLEY 96110001, ALLEN BRADLEY 96110071
Works With
- PLC-5 programming software and ladder logic controllers
- RSLogix 5 development environment
- 1771 I/O communication protocol
- Module keying between 2-4 and 32-34
