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1771-A2B

Allen-Bradley 1771-A2B 8-Slot I/O Chassis | PLC Backplane

Only 5 units left

  • Manufacturer: Allen-Bradley

  • Product No.: 1771-A2B

  • Product Type: I/O Chasis

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 4700g

  • Shipping port: Xiamen

  • Warranty: 12 months

30-Day Return Policy · 12-Month Warranty
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  • 24/7 Support
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Description

Allen-Bradley 1771-A2B: 8-Slot I/O Chassis for PLC Systems

The Allen-Bradley 1771-A2B I/O chassis forms the backbone of your control system. This robust 8-slot rack powers and connects your Series A modules reliably. It replaces the older 1771-A2 model with improved performance and capacity.

Core Technical Specifications

  • Brand: Allen-Bradley
  • Model: 1771-A2B
  • Module Slots: 8 I/O slots for PLC expansion
  • Backplane Current: 16 Amperes at 5V DC maximum capacity
  • Mounting Type: Secure back panel installation
  • Environmental Rating: IP20 for indoor use only
  • Thermal Dissipation: 50 BTU/hour typical operation

Physical Specifications & Durability

  • Dimensions: 3.5 x 6.5 x 2.0 inches (89 x 165 x 51 mm)
  • Weight: 10.3 lbs (4.7 kg) sturdy construction
  • Shock Resistance: 15g operating, 30g non-operating
  • Vibration Tolerance: 2g across 10-500 Hz frequency range
  • Enclosure Type: Open style for easy module access

Compatibility & Replacement Information

  • Compatible Series: Designed for Allen-Bradley Series A modules
  • Replaces Model: Direct replacement for 1771-A2 chassis
  • Packaging Includes: 1771-A2B chassis and mounting hardware
  • Shipping Methods: FedEx, UPS, DHL worldwide delivery

Frequently Asked Questions (FAQ)

What is the main function of the 1771-A2B chassis?

The 1771-A2B provides power distribution and communication pathways for Allen-Bradley I/O modules in a PLC system.

How many modules can this chassis support?

This chassis offers eight slots for various Series A compatible modules from Allen-Bradley.

Can I install this chassis in outdoor applications?

No, the IP20 rating specifically limits this unit to indoor, controlled environments only.

What happens if I exceed the 16A backplane current?

Exceeding the current rating may cause system instability or damage to modules and the chassis.

How do I select the right modules for this chassis?

Choose Allen-Bradley Series A modules and verify their current requirements fit within the 16A total.

Is professional installation required for this chassis?

While straightforward, we recommend installation by qualified industrial maintenance personnel.

For pricing quotes or technical assistance with the 1771-A2B, contact us at sale@etowonauto.com.

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🏷️ Tags: I/O Chasis

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  • 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.

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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