PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-WN is a field wiring arm designed for the PLC-5 control system. This assembly connects plant wiring directly to compatible 1771 series input and output modules. It provides 40 physical terminal connection points for field terminations. The arm supports up to 32 active I/O connections across supported configurations. Using a wiring arm allows module replacement without disturbing external field wiring.
The 1771-WN operates within a voltage range of 10 to 32 V DC when paired with digital modules. Recommended screw torque for terminal mounting ranges from 0.79 to 1.02 N·m. That corresponds to 7 to 9 pound-inches of applied tightening torque. Off-state typical signal delays include 29 plus or minus 8 milliseconds for AC signals. DC off-state signal delay measures 30 plus or minus 7 milliseconds in operation.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Module Type | Field Wiring Arm (for 1771 I/O chassis) |
|---|
| Maximum I/O Connections | 32 I/O |
|---|
| Number of Terminal Points | 40 Terminals |
|---|
| Screw Torque (terminal mounting) | 0.79–1.02 N·m (7–9 lb·in) |
|---|
| Operation Voltage Range | 10–32 V DC (used with digital modules) |
|---|
| Typical Signal Delay (AC/DC off-state) | AC Off: 29 ± 8 ms; DC Off: 30 ± 7 ms |
|---|
TECHNICAL INFORMATION
Features
- Provides 40 screw terminal points for external field wiring terminations.
- Accommodates up to 32 distinct I/O connections for PLC-5 system modules.
- Permits rapid module replacement without disconnecting field leads.
- Operates across a 10 to 32 V DC voltage range with digital modules.
- Specifies terminal mounting screw torque between 0.79 and 1.02 N·m.
TECHNICAL INFORMATION
Connections / Interfaces
- Features 40 screw terminal points for field cable termination.
- Interfaces directly with compatible 1771 I/O modules in the chassis.
TECHNICAL INFORMATION
Installation Guidelines
- Secure terminal mounting screws within the torque range of 0.79 to 1.02 N·m.
- Align the arm with the 1771 I/O chassis slot before seating the module.
- Verify that all 40 terminal points remain correctly wired to field equipment.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley 1771 I/O chassis and designated PLC-5 I/O modules.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley 1771 I/O chassis and designated PLC-5 I/O modules.
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 is the Allen-Bradley 1771-WN?
The Allen-Bradley 1771-WN is a 40-point field wiring arm for 1771 I/O chassis in PLC-5 systems.
What torque should be applied to the terminal screws?
Tighten terminal mounting screws to between 0.79 and 1.02 N·m, or 7 to 9 lb·in.
What is the indicative market reference price for the 1771-WN?
Indicative market reference pricing is approximately 10.00 USD for surplus units. Figures are not a final quotation.
