1756-A17 ControlLogix 17-Slot Standard Chassis | Allen Bradley

Overview

The Allen-Bradley 1756-A17 is a horizontal-mount ControlLogix chassis designed to accommodate up to 17 modules. Engineered for reliability in industrial control applications, it provides stable backplane power distribution and supports both Series B and Series C modules. Its open-style design allows flexible panel mounting with ten secure mounting tabs.

Technical Specifications

• Model / Part Number: 1756-A17

• Brand: Allen-Bradley

• Product Type: ControlLogix Standard Chassis

• Product Line: ControlLogix

• Weight: 5.00 lbs (2.27 kg)

• Mounting Type: Panel Mount

• Module Slots: 17

• Backplane Current:

• 1.2 VDC: 1.5 A

• 3.3 VDC: 4 A / 4 A

• 5.1 VDC: 15 A / 6 A

• 24 VDC: 2.8 A / 2.8 A

• Orientation: Horizontal

• Mounting Tabs: 10

• Operating Temperature:

• Series B: 0°C to +60°C (32°F to 140°F)

• Series C: -25°C to +60°C (-13°F to 140°F)

• Storage Temperature: -40°C to +85°C (-40°F to 185°F)

• Relative Humidity: 5–95% (non-condensing)

• Wire Size:

• Functional Earth Ground: 8.3 mm² (8 AWG)

• Protective Earth Ground: 2.1 mm² (14 AWG)

• Power Dissipation (Max): 6 W

• Enclosure: Open

• Backplane Current (5 V DC): 10 A

• Backplane Current (24 V DC): 2.8 A

Applications

• Serves as the foundation for ControlLogix automation systems.

• Supports a wide range of modules including I/O, communication, and specialty modules.

• Suitable for factory panel installations requiring robust power distribution.

FAQs

Q1: How many modules can the 1756-A17 chassis hold?
It accommodates up to 17 ControlLogix modules in a horizontal panel mount configuration.

Q2: What are the backplane power capabilities?
The chassis provides multiple backplane voltages including 1.2 VDC, 3.3 VDC, 5.1 VDC, and 24 VDC to support a variety of modules.

Q3: Can this chassis be used in harsh environments?
Yes, it operates reliably in temperatures from -25°C to +60°C for Series C modules, with relative humidity up to 95% non-condensing.