Allen-Bradley 1771-NB4T PLC-5
In stock: 1 unit in Milwaukee, WI. Physically stocked and ready to ship or available for local pickup. Includes a 1-year full-function warranty.
Actual NJT inventory photos
Price
$2,999.99USD
Used units available
| Part Number | 1771-NB4T |
| Description | Allen-Bradley 1771-NB4T PLC-5. In stock in used condition, Series A. |
| Shipping | Ships same or next business day UPS Ground included | Next-Day Air and Worldwide Shipping available at checkout |
| Pickup | Free local pickup at 2122 N Prospect Ave. Call ahead at (414) 331-5954. |
| Warranty | 1-year full-function warranty provided by NJT Automation. Warranty details
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| Returns | 90-day free returns. View return policy |
| Exchange | Send us your defective 1771-NB4T after your purchase for a 10% core credit ($300). We also purchase old or damaged parts outright. |
Replacement Options for 1771-NB4T
Pick a condition and series below. UPS Ground shipping included.
| Variants | Part NumberConditionSeriesQtyPrice 1771-NB4T /A$2,999.99 Used · Series A · 1 in stock1771-NB4T /AUsedSeries A1$2,999.99 USD | ||
| Availability | 1 unit in stock | ||
| Repairs | 1771-NB4T Mail-In Repair ServiceEstimated: $1,500.00 | ||
Series & Revisions | Series A in stock; other series on request. | ||
Intended Use | Designed for process measurement and continuous control applications. Analog modules read pressure, flow, level and temperature transmitters and drive valve positioners and drive references in PLC-5 process loops. | ||
Migration Path | Rockwell Automation has discontinued 1771 I/O along with the PLC-5 platform. Published successor for the 1771 I/O: the equivalent ControlLogix 1756 I/O module.
A like-for-like replacement or a repair keeps the existing program, wiring and panel layout; a migration is a project. Both are listed on this page so the choice can be made on lead time and budget. | ||
Physical Data | Weight and DimensionsBox12 × 12 × 12 in.
Shipping box and weight are recorded from previous shipments of this catalog number and are provided for freight planning. | ||
Allen Bradley Information | Allen-Bradley PLC 5 1771-NB4T Analog Input Module 4-Channel Thermocouple Input. Technical SpecificationsLifecycle status
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| Category | PLC-5 | ||
| Part Number | 1771-NB4T | ||
| Manufacturer | Allen-Bradley | ||
Can the 1771-NB4T be repaired?
Yes. NJT Automation repairs the 1771-NB4T by mail-in: diagnostic evaluation, component-level repair and a functional test, backed by a 1-year full-function warranty.
NJT managed repair. No evaluation fee; no repair, no charge. Prepaid UPS label both ways, $650 minimum, rush available. 1-year full-function warranty included, 2- and 3-year options.
Compare quotes from independent repair technicians. Post your repair on RepairMode to receive competitive bids from experienced technicians. Each technician sets their own pricing and warranty.
Find a PLC repair specialiston RepairMode.com ↗Common failures
Failure patterns we regularly see on 1771 analog module hardware like the 1771-NB4T:
- Channel drift, offset or a reading railed at full scale after loop overvoltage
- Calibration lost on one or more channels
- Output stuck at zero or full scale on output modules
- Thermocouple / RTD channels reading wrong from failed reference or CJC
- Block-transfer timeouts from a failing module processor
Photos by NJT Automation; test videos from NJT or network repair technicians.
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