Product Details
Overview
The Allen-Bradley 1771-WH is a robust field wiring arm engineered for PLC-5 I/O systems. Designed without a cover, it provides 21 tin-plated terminals to support up to 16 isolated I/O modules. Its conformal coating ensures long-term reliability in industrial environments while maintaining accurate signal transmission with minimal delay.
Technical Specifications
-
Manufacturer: Allen-Bradley
-
Model Number: 1771-WH
-
Product Type: Field Wiring Arm
-
Category: PLC Accessories
-
Maximum I/O Modules: 16
-
Number of Terminals: 21
-
Contact Plating: Tin
-
Screw Torque: 7–9 lb·in
-
Coating: Conformal coated
-
External Power Required: None
-
Signal Delay:
-
AC Off: 29 ± 8 ms
-
DC Off: 30 ± 7 ms
-
Compatible Wiring Arm Replacement: 1771-WN
-
Weight: 0.20 kg (0.44 lbs)
Key Features
-
Supports high-density I/O connections with 21 terminals
-
Tin-plated contacts provide reliable conductivity
-
Conformal coating safeguards against moisture and dust
-
Self-powered, no external power source needed
-
Compatible with general-purpose PLC-5 I/O modules
Application Scenarios
-
Ideal for wiring PLC-5 modules in industrial automation
-
Suitable for applications requiring multiple isolated I/O modules
-
Can be used to replace or upgrade older 1771 series wiring arms
-
Supports accurate AC/DC signal processing for process control systems
FAQ
Q1: How many I/O modules can the 1771-WH handle?
A1: It supports up to 16 general-purpose isolated I/O modules.
Q2: Is a cover included with this wiring arm?
A2: No, the 1771-WH model is supplied without a cover.
Q3: Does it require external power?
A3: No, the wiring arm operates without external power.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.
Optimizing Power Supply Sizing for Industrial Automation Systems
The power supply is the silent heartbeat of any industrial automation system. While engineers often prioritize processors and communication protocols, a stable power architecture remains the most critical factor for long-term reliability. In my 15 years of experience, I have found that neglecting power supply sizing often leads to ghost errors, intermittent field device failures, and costly production downtime.