Allen Bradley 1771-NT1 High-Resolution Isolated Analog Input Module

Overview

The Allen Bradley 1771-NT1 is a high-resolution isolated analog input module designed for the 1771 PLC I/O platform. It provides accurate and electrically isolated measurement of analog signals, ensuring stable performance in environments with electrical noise or grounding variations. The module is widely used in industrial automation and process control systems requiring high precision and signal integrity.

General Information

Part Number: 1771-NT1

Manufacturer: Allen Bradley

Brand: Allen Bradley

Country of Origin: United States

Series: 1771 I/O

Type: High-Resolution Isolated Analog Input Module

Input Type: Isolated Analog Voltage and Current Inputs

Application: Precision industrial measurement and process automation

Power Specifications

Power Supply: Backplane powered

Backplane Current: Approx. 550 mA at 5 V DC

Power Dissipation: Approx. 3.2 W

Input Isolation: Channel-to-system isolation

Supported Input Types: Voltage and current analog signals

Resolution: High-resolution analog-to-digital conversion

Status Indicators: Front-panel status LED

Communication & Interface

System Interface: 1771 PLC backplane

Input Channels: Multi-channel isolated analog inputs

Signal Compatibility: Industrial voltage and current signals

Configuration: Software-configurable input ranges and scaling

Diagnostics: Built-in module health and fault monitoring

Environmental

Operating Temperature: 0 to 60 °C

Storage Temperature: −40 to 85 °C

Relative Humidity: 5% to 95% RH, non-condensing

Protection Rating: IP20 (for installation inside an industrial control cabinet)

Dimensions & Weight

Dimensions (L × W × H): 165 × 51 × 89 mm

Weight: 0.68 kg

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