1771-A3B1-B

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Overview of Allen-Bradley 1771-A3B1-B I/O Chassis

The Allen-Bradley 1771-A3B1-B is a universal I/O chassis designed to host 1771 I/O modules for the PLC-5 system. It features a 12-slot configuration with a backplane that supplies power and communication channels to connected modules. This chassis supports panel mounting only and delivers a maximum backplane current of 24 Amperes at 5 V DC.

Key Features

  • 12 slots for mounting 1771 I/O and specialty modules
  • Panel mount design with mounting tabs for enclosure installation
  • Maximum backplane current: 24 A at 5 V DC
  • Open-style chassis designed for industrial applications
  • Dimensions: 19.0 x 12.4 x 7.6 inches (483 x 315 x 193 mm)
  • Weight: Approximately 5.9 kg (13 lbs)
  • Operating temperature range: 0 to 60 °C (32 to 140 °F)
  • Shock resistance: 15 g, vibration resistance: 2 g (10–500 Hz)
  • Relative humidity range: 5-95% non-condensing
  • Certified for use in hazardous locations Class 1, Division 2, Groups A, B, C, and D

Technical Specifications

Model 1771-A3B1-B
Slots 12 I/O slots
Backplane Current 24 Amperes at 5 V DC
Mounting Panel mount only
Dimensions (HxWxD) 19.0 x 12.4 x 7.6 inches (483 x 315 x 193 mm)
Weight 5.9 kg (13 lbs)
Operating Temperature 0 to 60 °C (32 to 140 °F)
Shock Resistance 15 g
Vibration Resistance 2 g (10-500 Hz)
Humidity 5-95% non-condensing
Hazardous Location Certification Class 1, Division 2, Groups A, B, C, D

Applications

This chassis is used in industrial automation environments to house 1771 series I/O and specialty modules for PLC-5 systems. Its robust design supports distributed I/O systems and is suitable for harsh industrial conditions including hazardous locations.

1771-A3B1-B

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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