1771-OZL | Allen-Bradley PLC-5 Relay Output Module – Original Spare Parts

1771-OZL — Allen-Bradley PLC-5 8-Point Isolated Relay Output Module | Original Spare Parts

The 1771-OZL is an 8-point isolated relay contact output module engineered by Allen-Bradley for integration within the PLC-5 programmable controller platform. As a critical component in Industrial Automation and Control Module architectures, the 1771-OZL delivers dependable discrete switching across a broad range of field devices — from solenoid valves and motor starters to alarm annunciators and interlock relays. Every unit we supply is 100% Brand New and Factory Sealed, sourced directly from authorized channels to guarantee authenticity and long-term reliability.

Procurement managers and site engineers working in Oil & Gas, Power Generation, Chemical Processing, and Water Treatment facilities consistently rely on this module to maintain uptime in legacy PLC System environments where obsolescence is a real operational risk. The 1771-OZL bridges the gap between aging control infrastructure and modern field requirements, providing channel-to-channel isolation that protects both the controller backplane and connected field devices. Its robust relay architecture supports mixed AC/DC load switching without cross-interference — a decisive advantage in complex panel designs.

Whether you are replacing a failed unit on an emergency basis or stocking critical Spare Parts for planned maintenance, our inventory is ready to ship. Contact our team today for a competitive quote and fast delivery confirmation.

Logistics & Professional Service

• 100% Original and Brand New — Factory sealed, traceable to Allen-Bradley authorized supply chain
• ✅ 2-Day Express Shipping available to major global destinations
• ✅ 1-Year Warranty covering manufacturing defects and functional failures
• ✅ EOL / Legacy System Support — Specialized in sourcing discontinued and hard-to-find PLC-5 series modules
• ✅ Documentation Package — Datasheet, test report, and certificate of conformance available upon request
• ✅ Global Export Compliance — EXW, FOB, CIF terms supported; customs documentation provided

Technical Specifications & Selection Guide

Selection Tip: The 1771-OZL is the preferred choice when channel-to-channel isolation is mandatory and load voltages vary per output point. For high-frequency switching applications (>1 Hz), consider solid-state alternatives within the 1771 series.

Core Features & Technical Advantages

1. Precision Isolated Relay Contacts: Each of the 8 output points operates independently with full channel-to-channel isolation, eliminating ground loop interference in sensitive industrial circuits.
2. Heavy-Duty Relay Architecture: Rated for 100,000+ mechanical switching operations, the relay contacts withstand the demanding duty cycles found in continuous process environments.
3. Robust Backplane Integration: Designed natively for the 1771 I/O chassis, the module draws power directly from the backplane — no external auxiliary supply required.
4. Mixed AC/DC Load Compatibility: Each relay output independently supports AC or DC field devices within the 0-24V range, simplifying panel wiring in heterogeneous installations.
5. Diagnostic LED Indicators: Per-channel status LEDs enable rapid fault identification without requiring a programming terminal, reducing mean time to repair (MTTR).
6. Original New Authenticity: Supplied as Original New components with full traceability — critical for E-E-A-T compliance in regulated industries such as nuclear, pharmaceutical, and petrochemical.

Typical Application Scenarios

Oil & Gas — Wellhead & Pipeline Control: Relay outputs drive solenoid valves and shutdown actuators in safety instrumented systems. The isolated contacts prevent ground faults from propagating into the PLC System backplane during fault conditions.

Power Plants — Turbine Auxiliary Control: Used in turbine lube oil, cooling water, and excitation systems where discrete relay switching must be electrically isolated from high-voltage field circuits. The 1771-OZL’s robust construction meets the reliability demands of continuous generation environments.

Chemical & Petrochemical Processing: Controls agitator motors, pump sequencing, and interlock logic in batch reactor systems. Channel isolation is essential when switching loads powered by different voltage sources within the same panel.

Water & Wastewater Treatment: Manages pump station sequencing, valve actuation, and alarm relay outputs in remote unmanned installations where module reliability directly impacts environmental compliance.

Automotive & Heavy Manufacturing: Integrated into assembly line interlock circuits and machine safety relay chains, where the module’s hot-swap capability minimizes production downtime during scheduled maintenance windows.

FAQ — Frequently Asked Questions

Q: What is the current price and lead time for the 1771-OZL?
A: Pricing for the 1771-OZL is competitive and varies based on order quantity and destination. As a stocked item, standard lead time is 2-5 business days for most global destinations, with express 2-day shipping available for urgent requirements. Contact sale@ninermas.com with your quantity and delivery location for a firm quotation within 24 hours.

Q: Is this module 100% Original and Brand New, or refurbished?
A: Every 1771-OZL we supply is 100% Original and Brand New, sourced from Allen-Bradley (Rockwell Automation) authorized distribution channels. Units are factory sealed and have never been installed or powered. Refurbished or repaired units are not offered.

Q: Can you provide a Datasheet or Certificate of Conformance for the 1771-OZL?
A: Yes. The official Allen-Bradley 1771-OZL datasheet, installation instructions, and a certificate of conformance are available upon request. For regulated industries requiring full material traceability documentation, please specify this requirement at the time of inquiry.

Q: Is the 1771-OZL compatible with ControlLogix or CompactLogix platforms?
A: No. The 1771-OZL is designed exclusively for the Allen-Bradley PLC-5 platform using the 1771 I/O chassis backplane. For ControlLogix applications, the equivalent functionality is provided by the 1756-OW series relay output modules.

Q: Do you support export to countries with strict import regulations?
A: Yes. We provide full export documentation including commercial invoice, packing list, certificate of origin, and EAR99 classification confirmation where applicable. Shipments are handled under EXW, FOB, or CIF terms based on buyer preference.

Q: What warranty is provided, and what does it cover?
A: All 1771-OZL modules are covered by a 1-Year Warranty from the date of shipment. The warranty covers manufacturing defects and functional failures under normal operating conditions. Replacement or full refund is provided for confirmed warranty claims.

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