100 in stock
ALLEN BRADLEY 1771-IR 1771-IR/D RTD INPUT MODULE
ALLEN BRADLEY 1771-IR 1771-IR/D RTD INPUT MODULE
Brand/Manufacturer: Allen-Bradley
Order Number: 1771-IR/D
Type: Allen Bradley PLC-5
Country of Origin: USA
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
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Description
ALLEN BRADLEY 1771-IR Description
The 1771-IR is an RTD input module made by Rockwell Automation/Allen-Bradley. The module puts an 800-milliampere current load on the chassis backplane. The 1771-IR has a sensor resistance of 100 ohms platinum and 10 ohms copper or other sensors that support reporting in ohms. The module has an On-state signal delay (direct current) of 10 milliseconds, and a 50 milliseconds Off-state signal delay. Additionally, the 1771-IR has an On-state alternating current signal delay of 45 milliseconds plus or minus 15ms. The 1771-IR has six 3-wired RTD inputs and it does not require an external power supply. The 1771-IR uses the 1771-WF wiring arm.
Specifications for 1771-IR INPUT MODULE
Manufacturer |
Rockwell Automation |
Brand |
Allen-Bradley |
Part Number/Catalog No. |
1771-IR |
Module Type |
RTD Input |
Number of Inputs & Outputs |
6 Three-Wire RTD Inputs |
Data Format |
Natural Binary, BDC Actual Temperature, or Ohm Readings |
Channel Update/Resolution |
50 ms/8 channel; 16 bits + sign (1.0 Celsius/1.0 Fahrenheit/bit) |
Voltage Range |
100 Ohms platinum, 10 Ohms other |
Current Range |
N/A |
Backplane Current |
800 Milliamperes |
External Power Required |
No |
Wiring Arm |
1771-WF |
Typical DC Signal Delay (On) |
10 ms |
Typical AC Signal Delay (Off) |
45 (+/- 15) ms |
Typical DC Signal Delay (Off) |
50 ms |
Wiring Arm |
1771-WH |
Mounting |
Rack-Mountable |
UPC |
10612598114747 |
Differences Between 1771-IR Series A, Series B, Series C, and Series D Modules
Description |
Series A |
Series B, C, and D |
Use of Data Table |
8 in; 8 out; 8 read words, 14 wite words |
8 in; 8 out; 9 read words, 15 write words |
Resistance Range |
18.4 to 400.00 ohms |
1.00 to 600.00 ohms |
Common Mode Impedance |
<50 megohms shunted by <4700pF |
Greater than 10 megohms |
Input Overvoltage Protection |
40V RMS continuous |
120V RMS continuous |
Scan Time |
50ms for 6 channels |
50ms for 6 channels |
Real-Time Sampling |
None |
50ms to 3.1s |
Auto-Calibration |
None |
Yes - Uses Block Transfer Write word 15 |
Open RTD Response Time |
None |
Open excitation (terminal A) to over range: <0.5sec Open common (terminal C) to under range: <0.5sec Open sense (terminal B): drit high |
Power Dissipation |
5.0W maximum |
4.75W maximum |
Thermal Dissipation |
17.0 BTU/hr |
16.2 BTU/hr |
|
Agency Certification (when product or packaging is marked) |
●CSA certified ●CSA Class I, Division 2, Groups A, B, C，D certified ●UL listed |
●CSA certified ●CSA Class I, Division 2, Groups A, B, C，D certified ●UL listed ●CE marked for all applicable directives |
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We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
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Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
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Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
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- Emily Brown
"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
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We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
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We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson