Product Details
Overview
The Allen-Bradley 1771-WD is a dedicated field wiring arm designed for PLC-5 I/O modules. It provides reliable connections for general-purpose isolated I/O modules, ensuring consistent signal integrity with minimal delay. Constructed with durable materials and conformal coating, this wiring arm is suitable for both AC and DC applications.
Technical Specifications
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Manufacturer: Allen-Bradley
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Model Number: 1771-WD
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Product Type: Field Wiring Arm
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Category: PLC Accessories
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Compatible Modules: Up to 8 isolated I/O modules, general purpose
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Number of Terminals: 12
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Contact Plating: Tin
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Screw Torque: 7–9 lb·in
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Coating: Conformal coated for environmental protection
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Power Requirements: None (self-powered)
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Signal Delay:
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AC Off: 29 ± 8 ms
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DC Off: 30 ± 7 ms
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Weight: 0.09 kg (0.19 lbs)
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Wiring Arm Replacement: Compatible with 1771-WN
Key Features
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Provides secure, reliable connections for PLC-5 I/O modules
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Supports both AC and DC signal inputs up to 120 V
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Conformal coating protects against environmental factors
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Compact, lightweight design simplifies module installation
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Compatible with multiple series PLC-5 chassis and I/O configurations
Application Scenarios
The 1771-WD is ideal for:
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Industrial PLC field installations requiring reliable I/O wiring
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Replacing or upgrading existing PLC-5 wiring arms
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Applications with general-purpose 6-isolated I/O modules
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Ensuring accurate signal transmission in process control systems
FAQ
Q1: How many I/O modules can the 1771-WD support?
A1: It supports up to 8 general-purpose isolated I/O modules.
Q2: Is external power required for operation?
A2: No external power is needed; the wiring arm is self-powered.
Q3: What is the typical AC signal delay?
A3: The AC off signal delay is approximately 29 ± 8 ms.
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
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Demystifying CPU Communication Ports in Siemens PLC Architectures
Industrial automation relies heavily on robust data exchange between devices. Without seamless connectivity, field instruments, network switches, human-machine interfaces, and programmable logic controllers cannot coordinate effectively. Therefore, understanding the various CPU communication ports available in Siemens hardware ensures efficient factory automation design and seamless system integration.
Mastering the Siemens PLC Scan Cycle: How the CPU Executes Automation Programs
Industrial automation relies heavily on programmable logic controllers (PLCs) to manage complex manufacturing processes. Many engineers dive straight into programming without mastering the underlying architecture. However, understanding how a PLC CPU executes a program ensures reliable system design. Therefore, mastering the scan cycle optimizes both performance and troubleshooting in modern control systems.