Allen-Bradley 1771-WC 1771 I/O Field Wiring Arm

SKU 1771-WC

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12-month warranty
Free returns within 30 days

Manufacturer: Allen-Bradley
Product No.: 1771-WC
Country of origin:United States
Product Type: Field Wiring Arm
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 950g
Dimensions: 145 mm x 30 mm x 90 mm (H x W x D)
Shipping port: Xiamen
Warranty: 12 months

Allen-Bradley 1771-WC is a field wiring arm designed for use within the Allen-Bradley 1771 I/O system. The device connects directly to analog output modules, including the 1771-OFE series modules (such as 1771-OFE1, 1771-OFE2, and 1771-OFE3), to interface field analog output devices like valve positioners, motor speed controllers, signal converters, or recorders. It pivots on the front of the 1771 I/O chassis, attaching to the horizontal bar at the bottom, which allows modules to be installed or removed without disconnecting user field wiring.

Features

Enables module installation and removal without disconnecting field wiring
Pivots on the front of the 1771 I/O chassis for modular maintenance
Attaches to the horizontal bar at the bottom of the 1771 I/O chassis
Includes terminal screws for field wiring terminations
Includes a functional ground connection terminal

Applications

Interfacing 1771 analog output modules with field analog devices
Industrial process control systems using 1771 I/O chassis installations
Control panel wiring for valve positioners, motor speed controllers, signal converters, and recorders

Technical Specifications

Parameter	Specification
Manufacturer	Allen-Bradley
Catalog Number	1771-WC
System Compatibility	1771 I/O Chassis
Recommended Cable	Belden 8761 (Shielded Twisted Pair)
Screw Torque	7 to 9 pound-inches (0.6 to 1.1 Nm)

Installation Guidelines

Mounting: Attach the wiring arm to the horizontal bar at the bottom of the 1771 I/O chassis. The arm pivots upward to connect with the module.
Power Safety: Remove power from the 1771 I/O chassis backplane and field wiring arm before removing or installing an I/O module. Disconnect and lockout AC power from the processor and system power supplies before wiring.
Wiring & Shielding: Use Belden 8761 single insulated, twisted-pair shielded cable for signal transmission. The cable shield must extend the length of the cable and be connected only at the 1771 I/O chassis end.
Grounding: Connect the cable shield to a properly grounded common bus or chassis ground stud at the chassis end only.

FAQ

What is the Allen-Bradley 1771-WC used for?

The Allen-Bradley 1771-WC is a field wiring arm used to connect field analog devices to 1771 I/O modules without requiring disconnection of user wires during module removal or installation.

Which system does the 1771-WC field wiring arm belong to?

The 1771-WC field wiring arm belongs to the Allen-Bradley 1771 I/O system and attaches to the 1771 I/O chassis.

How is the 1771-WC mounted in an I/O chassis?

The 1771-WC attaches to the horizontal bar at the bottom of the 1771 I/O chassis and pivots upward to connect with the installed module.

What is the recommended screw torque for the 1771-WC field wiring arm?

The recommended screw torque for the field wiring arm terminals is 7 to 9 pound-inches (0.6 to 1.1 Nm).

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Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	Black
Country of origin	United States
Power source	DC Power