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SKU:1771-IH
1771-IH Allen-Bradley PLC 5 Digital DC Input Module 8 Ch
Manufacturer: Allen-Bradley
Product No.: 1771-IH
Product Type: Input Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 450g
Shipping port: Xiamen
Warranty: 12 months
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Description
1771-IH Allen-Bradley PLC 5 Digital DC Input Module – 8 Channels
The Allen-Bradley 1771-IH is an 8-channel digital DC input module for the PLC 5 and Bulletin 1771 series. Rack-mountable with 24-50V DC operating voltage. Weight is approximately 0.45 kg (1.0 lb).
Product Information
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number | 1771-IH |
| Product Type | Digital DC Input Module |
| Number of Inputs | 8 |
| Voltage Category | 10-60V DC Sink (Source Load) |
| DC Operating Voltage | 24-50V DC |
| Backplane Current | 74 mA at 5V DC ±5% |
| Wiring Arm | 1771-WA |
| Mounting | Rack Mountable |
| Weight | Approx. 0.45 kg (1.0 lb) |
Input Specifications
| Nominal Input Current (24V) | 8.4 mA |
| Nominal Input Current (48V) | 20 mA |
| Max On-State Voltage | 10V DC |
| Max Off-State Voltage | 4.5V DC |
| Max Off-State Current | 1 mA |
| Input Impedance (On-State) | 2.5-3 kΩ |
| Input Impedance (Off-State) | 5-6 kΩ |
Signal and Power Specifications
| Signal Delay (On) | 15 ms (±7 ms) |
| Signal Delay (Off) | 20 ms (±9 ms) |
| Isolation Voltage | 1500V AC RMS |
| Power Dissipation | 0.4W to 8.1W |
| Thermal Dissipation | 1.3 to 27.7 BTU/hr |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
Features
- 8 digital DC input channels
- 24-50V DC operating voltage range
- 10-60V DC sink (source load) voltage category
- Rack mountable with 1771-WA wiring arm
- Eight red status indicators
- 1500V AC RMS isolation voltage
- Low power consumption at 74 mA backplane current
- Lightweight at approximately 0.45 kg (1.0 lb)
Applications
- PLC 5 control systems
- Industrial automation
- Machine control
- Process monitoring
FAQs
Q1: How many inputs does the 1771-IH provide?
A1: 8 digital DC input channels.
Q2: What is the operating voltage range?
A2: 24-50V DC with a voltage category of 10-60V DC sink.
Q3: What wiring arm and weight does this module have?
A3: 1771-WA wiring arm with weight of approximately 0.45 kg (1.0 lb).
Additional Specifications
- Black
Scalar (V/f)
Vector
AC-powered
Buying Guide
- Confirm the exact model, part number, and specifications before ordering.
- Ensure compatibility with your current machinery or control systems.
- Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
- Review delivery options, lead times, and shipping requirements.
- Follow manufacturer instructions and best practices during installation.
Shipping And Return
In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.
Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.
For more details, please review our Shipping & Return Policy.

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