PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-OW16 is a PLC-5 digital output module designed for electromechanical relay contact switching. It features sixteen grouped outputs arranged in two isolated groups of eight channels each. Channels 0 through 7 provide normally open contacts. Channels 10 through 17 offer selectable normally open or normally closed configurations. The module operates over voltage ranges of 24 to 250 Volts AC and 24 to 150 Volts DC.
Backplane power from the 1771 I/O chassis powers the unit, requiring a 1300 mA current load. Each output channel includes an individual common terminal for complete electrical isolation from other channels. Sixteen front-panel status LEDs illuminate when their corresponding relay contacts energize. An external resistor-capacitor network filter across the contacts suppresses electrical arcing during operation. This suppression filter also reduces electromagnetic interference affecting adjacent chassis equipment.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| AC Operating Voltage | 24 to 250 Volts AC |
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| Backplane Current | 1300 mA |
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| Bounce Time | 4ms |
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| Category | PLCs |
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| Coating | Conformal Coat |
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| DC Operating Voltage | 24 to 150 Volts DC |
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| GTIN | 10612598126092 |
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| Maximum Continuous Current Per Module | 2 Amps (80 Watts DC Max) (500 VA AC Maximum) |
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| Module Location | 1771-A1B thru A4B or later 1771 I/O chassis |
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| Module Type | Digital Contact Output Module |
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| Mounting | Rack Mountable |
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| Number of Outputs | 16 |
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| Product Line | PLC 5 |
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| Typical AC Signal Delay (Off) | 45 (+/- 15) milliseconds |
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| Typical DC Signal Delay (Off) | 50 milliseconds |
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| UPC | 10662468205853 |
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| Weight | 2.44 lbs (1.11 kg) |
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| Wiring Arm | 1771-WN |
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TECHNICAL INFORMATION
Features
- Provides 16 electromechanical relay contact outputs organized into two groups of eight.
- Features eight normally open contacts alongside eight selectable normally open or normally closed channels.
- Supports operating voltages from 24 to 250 VAC and 24 to 150 VDC.
- Includes an individual common terminal per channel for independent circuit isolation.
- Contains 16 front-panel status LED indicators that illuminate when relays energize.
- Operates with an operate and release time of 10 milliseconds maximum.
TECHNICAL INFORMATION
Applications
- Electromechanical relay switching for AC and DC power circuits.
- Control systems requiring independent channel isolation across field wiring circuits.
- 1771 I/O chassis installations operating under 1/2-slot or 1-slot addressing modes.
TECHNICAL INFORMATION
Connections / Interfaces
- Field connections wire directly to the compatible Allen-Bradley 1771-WN field wiring arm.
- The wiring arm permits module replacement without disconnecting field wiring conductors.
- Mechanical keying installs between backplane pins 2 and 4, and pins 32 and 34.
TECHNICAL INFORMATION
Installation Guidelines
- Installs into 1771-A1B through 1771-A4B or later 1771 I/O chassis slots.
- Ensure the system power supply can handle the 1300 mA backplane current load.
- Install external surge limiting devices across contacts to suppress inductive load arcing.
- Connect field wiring using the dedicated 1771-WN wiring arm.
TECHNICAL INFORMATION
Configuration Guidelines
- Select channels 10 through 17 as either normally open or normally closed.
- Configure module addressing for 1/2-slot or 1-slot mode within the chassis rack.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley 1771-A1B, 1771-A2B, 1771-A3B, and 1771-A4B I/O chassis.
- Operates within Allen-Bradley PLC-5 programmable logic controller systems.
- Requires the Allen-Bradley 1771-WN field wiring arm for termination.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley 1771-A1B, 1771-A2B, 1771-A3B, and 1771-A4B I/O chassis. Operates within Allen-Bradley PLC-5 programmable logic controller systems. Requires the Allen-Bradley 1771-WN field wiring arm for termination.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What contact configuration does the Allen-Bradley 1771-OW16 provide?
The module provides 16 electromechanical relay outputs. Channels 0 through 7 are normally open contacts. Channels 10 through 17 are selectable normally open or normally closed contacts.
Which wiring arm connects to the 1771-OW16 module?
The 1771-OW16 requires the Allen-Bradley 1771-WN field wiring arm. It allows module removal without disconnecting field wiring.
What are the voltage ratings for the 1771-OW16 output contacts?
The relay contacts operate from 24 to 250 Volts AC. They also support 24 to 150 Volts DC.
What is the reference price for the Allen-Bradley 1771-OW16?
Market observations indicate reference pricing around $149.00 USD for used or refurbished units. These figures represent indicative market reference pricing only and are not a final quotation.
