Allen-Bradley 1771-A3B1 I/O Chassis - High-Performance 12-Slot Backplane for Industrial Automation

Product Overview

The Allen-Bradley 1771-A3B1 is a rugged 12-slot I/O chassis designed for demanding industrial environments. With its high-capacity backplane and flexible mounting options, this chassis delivers reliable performance for your automation systems.

Key Features

• 12 module slots for flexible system expansion
• 24A backplane current at 5V DC for powering multiple modules
• Panel or 19" rack mount installation options
• Industrial-grade durability with 15g shock and 2g vibration resistance
• Wide operating temperature range (0-60°C/32-140°F)

Technical Specifications

• Brand: Allen-Bradley
• Model: 1771-A3B1
• Type: I/O Chassis (Open Style)
• Dimensions: 483 × 339 × 221 mm (19.0 × 13.35 × 8.7 in)
• Weight: 5.9 kg (13 lbs)
• Backplane Current: 24A @5V DC
• Operating Temperature: 0-60°C (32-140°F)
• Vibration Resistance: 2g (10-500Hz)
• Shock Resistance: 15g (operating), 30g (non-operating)

Installation & Compatibility

• Simple panel or rack mounting
• Compatible with Allen-Bradley 1771 I/O modules
• Tool-free module insertion
• Backward compatible with Series A chassis

Certifications & Warranty

• CE, UL, and RoHS compliant
• 12-month warranty
• Fast worldwide shipping via FedEx, UPS, DHL

Frequently Asked Questions

• Q: Is this chassis backward compatible?
  A: Yes, it replaces Series A chassis.
• Q: What's the maximum backplane current?
  A: 24A at 5V DC.
• Q: Can it withstand high vibration environments?
  A: Yes, up to 2g (10-500Hz).

Typical Applications

• Factory automation systems
• Process control applications
• Machine monitoring and control

Package Contents

• 1771-A3B1 chassis
• Mounting hardware
• User manual