Allen-Bradley 1771-OBD PLC-5 DC Output Module

SKU 1771-OBD

In stock

12-month warranty
Free returns within 30 days

Manufacturer: Allen-Bradley
Product No.: 1771-OBD
Country of origin:United States
Product Type: Digital DC Output Module
Payment: T/T, Western Union
Weight: 450g
Dimensions: 18.5 x 10.5 x 3.5 cm
Shipping port: Xiamen
Warranty: 12 months

Description

The Allen-Bradley 1771-OBD is a 16-point DC output module designed for integration within the Allen-Bradley PLC-5 and 1771 universal I/O chassis architecture. This digital module operates within a voltage range of 10 to 60 VDC, providing reliable solid-state switching for industrial control devices such as solenoids, indicators, and motor starters. It requires compatibility with a Series B 1771 I/O chassis and supports flexible addressing configurations depending on system architecture.

Equipped with optical isolation between the logic side and the load side, the 1771-OBD ensures robust noise immunity and electrical protection in harsh manufacturing environments. Front-panel diagnostic indicators include a green module status LED, 16 individual red point status LEDs for direct logic-side verification, and a dedicated red fuse-blown indicator linked to onboard fusing protection. The module is engineered to handle moderate inrush currents while maintaining low on-state voltage drops for efficient power delivery.

Features

16 sourcing-type DC output channels operating at 10 to 60 VDC
Delivers up to 2 A of continuous output current per point, with an 8 A maximum per module
Handles surge currents up to 4 A per output for 10 ms, repeatable every 2 seconds
Provides optical isolation rated at 1,500 VAC rms between I/O and backplane
Features comprehensive diagnostic LED indicators for module health, individual channel status, and blown fuse alerts
Low on-state voltage drop of 0.3 V max at 2 A for improved thermal and electrical efficiency

Applications

Directly driving pilot lights, control relays, and solid-state actuators in PLC-5 architectures
Switching inductive and resistive DC loads within manufacturing and process control skids
Interfacing with complementary 1771 input modules requiring shared DC common references
Expanding discrete output capacity in legacy 1771 universal I/O chassis configurations

Technical Specifications

Parameter	Specification
Brand	Allen-Bradley
Module Type	DC Output Module
Product Family	PLC-5 / 1771 Universal I/O
Catalog Number	1771-OBD
Outputs per Module	16 (sourcing)
Operating Voltage Range	10 to 60 VDC
Output Current Rating	2 A max per output, 8 A max per module
Minimum Load Current	2.5 mA per output
Max Surge Current	4 A per output for 10 ms
Backplane Current Draw	400 mA at 5 VDC (+/- 5%)
Signal Delay	1.0 ms on or off
Isolation Voltage	1,500 VAC rms
Country of Origin	United States

Compliance and Certifications

UL Listed Industrial Control Equipment
CSA Certified
CE Compliant for applicable directives
C-Tick marked

FAQ

What chassis types are compatible with the Allen-Bradley 1771-OBD?

The 1771-OBD output module is designed to be used with a Series B 1771 I/O chassis.

What is the operating voltage range of the 1771-OBD module?

The module operates across a DC voltage range of 10 to 60 VDC.

What backplane current does the 1771-OBD draw?

The module draws approximately 400 mA at 5 VDC (+/- 5%) from the backplane.

What diagnostic indicators are available on the front panel?

It features a green module active indicator, 16 red individual point status indicators, and a red fuse-blown indicator.

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Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Quantity

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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