Allen-Bradley 1771-A3B 12-Slot Universal I/O Chassis – Reliable, High-Performance Backplane for Industrial Control

Description

The 1771-A3B by Allen-Bradley (Rockwell Automation) is a versatile 12-slot I/O chassis designed for industrial automation. It supports high-density module integration with a 24A backplane current, ensuring stable power for PLC systems.

Key Features

• 12 slots for flexible I/O module expansion
• High-capacity 24A backplane for stable 5V DC power
• Durable design with vibration & shock resistance (15g operating/30g non-operating)
• Wide temperature range (0°C to 60°C) for harsh conditions
• Easy mounting (panel or rack) and tool-free maintenance

Technical Specifications

• Brand: Allen-Bradley (Rockwell Automation)
• Model: 1771-A3B
• Type: Universal I/O Chassis
• Slots: 12
• Backplane Current: 24A @ 5V DC
• Dimensions: 19.0" x 13.35" x 8.7" (483 x 339 x 221 mm)
• Weight: 13 lbs (5.9 kg)
• Operating Temp: 32°F to 140°F (0°C to 60°C)
• Humidity Tolerance: 5-95% non-condensing
• Certifications: CE, RoHS compliant

Installation & Compatibility

• Works with Allen-Bradley 1771 series I/O modules
• Tool-free slot design for quick module swaps
• Stand-alone or rack-mounted for flexible setups

Shipping & Warranty

• Fast global delivery via FedEx, UPS, DHL
• 12-month warranty against defects

Diagnostic & FAQ

• LED indicators for module status
• Q: Can it support analog modules? A: Yes, compatible with 1771 analog/digital modules
• Q: Is grounding required? A: Yes, follow local electrical codes

Package Includes

• 1x 1771-A3B chassis
• Mounting hardware
• User manual

Limited stock – Order now for fast delivery!