PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-OZ is a PLC-5 contact output module providing eight normally open contact outputs. Each channel provides isolated switching for control circuits. The contact rating supports 30 VA at 138 VAC. Direct current capability reaches 20 VA at 125 VDC. The module operates with 0 to 24 V operating levels. It occupies a single slot in any compatible 1771 chassis.
Field wiring terminates through a separate 1771-WD or 1771-WH wiring arm. The unit draws 420 mA of backplane current from the rack. Maximum continuous current per module is rated at 0.1 A. Signal turn-off delay requires 45 ms for alternating current circuits. Direct current circuits exhibit a typical turn-off delay of 50 ms. The assembly contains mercury contact elements.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Category | PLCs |
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| Product Line | PLC 5 |
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| Weight | 1.25 lbs (0.57 kg) |
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| Wiring Arm | 1771-WD |
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| Module Type | Contact output module |
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| No. of outputs | Eight (8) |
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| Module width | 1-slot |
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| Compatible chassis | Series A or B 1771-A1B, 1771-A2B, 1771-A3B, 1771-A3B1, 1771-A4B universal I/O chassis and 1771-AM1 or 1771-AM2 I/O Chassis |
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| Wire size | 14 AWG |
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| Operating temperature | 32 to 131oF |
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| Storage Temperature | -40 to 185oF |
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| Relative Humidity | 5-95 % |
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| Number of Outputs | 8 N.O. |
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| Max Voltage | 30VA at 138VAC or 20VA at 125VDC |
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| AC Operating Voltage | 0-24 Volts |
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| DC Operating Voltage | 0-24 Volts |
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| Backplane Current | 420 Miliamperes |
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| Typical AC Signal Delay (Off) | 45 (+/- 15) ms |
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| Typical DC Signal Delay (Off) | 50 ms |
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| Mounting | Rack Mountable |
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TECHNICAL INFORMATION
Features
- Provides eight normally open contact outputs.
- Single-slot form factor fits 1771 I/O chassis.
- Supports AC loads up to 138 VAC.
- Switches DC loads up to 125 VDC.
- Utilizes 1771-WD or 1771-WH wiring arm connectors.
TECHNICAL INFORMATION
Connections / Interfaces
- Requires 1771-WD or 1771-WH wiring arm for terminal connections.
- Accepts wiring up to 14 AWG gauge.
TECHNICAL INFORMATION
Installation Guidelines
- Insert the module into any available slot in the 1771 chassis.
- Connect external signal lines to the wiring arm before seating.
- Ensure chassis power is off before inserting or removing the module.
- Terminate field wiring using up to 14 AWG conductors.
- Verify module latches securely into the backplane connector.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure the host processor for eight contact output points.
- Assign rack and group addressing based on chassis slot placement.
- Confirm backplane power allocation does not exceed power supply limits.
TECHNICAL INFORMATION
Compatibility
- Installs into Series A or B 1771 universal I/O chassis.
- Compatible chassis include 1771-A1B, 1771-A2B, 1771-A3B, 1771-A3B1, and 1771-A4B.
- Supports installation in 1771-AM1 and 1771-AM2 chassis.
- Requires a 1771-WD or 1771-WH wiring arm for field terminations.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSInstalls into Series A or B 1771 universal I/O chassis. Compatible chassis include 1771-A1B, 1771-A2B, 1771-A3B, 1771-A3B1, and 1771-A4B. Supports installation in 1771-AM1 and 1771-AM2 chassis. Requires a 1771-WD or 1771-WH wiring arm for field terminations.
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 wiring arm is required for the Allen-Bradley 1771-OZ?
The module uses the 1771-WD or 1771-WH wiring arm for field wire connections.
What are the output contact ratings for the 1771-OZ module?
The contacts handle 30 VA at 138 VAC or 20 VA at 125 VDC.
What is the typical market reference price for the 1771-OZ?
Observed market reference pricing is approximately $249.00 USD. This is an indicative market reference only, not a final quotation.
Which chassis models support the 1771-OZ contact output module?
It installs into 1771-A1B, 1771-A2B, 1771-A3B, 1771-A3B1, 1771-A4B, 1771-AM1, and 1771-AM2 chassis.
