1756-A5XT

Constructed as a component of the ControlLogix series, the Allen Bradley 1756-A5XT functions as a high-performance chassis specifically for automation systems. This model is distinguished by its open-style enclosure, lacking any significant protective covering. Power dissipation is capped at 4.4 watts, which is relatively low given its capabilities.

This chassis accommodates a total of five slots, allowing for flexible configuration with various modules tailored to specific applications. The mounting of this chassis is designed for back panel installation, and its orientation is set horizontally, simplifying integration into existing control architectures.

In terms of electrical requirements, the backplane current specifications are detailed as follows: 1.5 Amperes at 1.2 Volts DC, 4 Amperes at 3.3 Volts DC, 15 Amperes at 5.1 Volts DC, and 2.8 Amperes at 24 Volts DC, ensuring robust performance under various conditions. It also provides a conformal coating, enhancing protection against environmental factors that could affect module integrity.

The 1756-A5XT has a vibration resistance rating of 2 G across the frequency range of 10 to 500 Hertz and is built to endure shock resistance of up to 30 G. These ratings guarantee resilience in demanding operational environments. The chassis supports electrical connections via specified wire sizes: 8 AWG (8.3 mm²) for functional earth grounding and 14 AWG (2.1 mm²) for protective earth grounding, accommodating standard copper wire types.

Electrostatic discharge immunity is also commendably handled, with ratings of 6 kilovolts for contact discharges and 8 kilovolts for air discharges, ensuring reliability even in electrically charged environments. The operational temperature range extends from -25 to 70°C (-13 to 158°F), accommodating a wide spectrum of environmental conditions essential for various industrial settings.