Allen-Bradley 1756-A7K | ControlLogix 7-Slot Chassis

Technical Specifications

Installation Notes

1. Mount horizontally using 2 top and 2 bottom tabs on the rear panel assembly.

2. Maintain proper environmental conditions; relative humidity must remain 5–95% non-condensing.

3. Ground the chassis using solid or stranded 8.3 mm² (8 AWG) copper for functional ground, and 2.1 mm² (14 AWG) for protective ground.

4. Torque nuts on protective ground to 16.27 N·m (12 lb·in).

5. Connect grounding conductors to the ground bus, and ensure a proper connection to the grounding electrode system to prevent EMI.

Advantages

The 1756-A7K chassis supports up to seven ControlLogix modules, providing flexible expansion for industrial PLC systems. Its open design ensures easy access to modules while the conformal coating protects electronic components. Proper grounding and mounting reduce electrical noise and maintain system stability.

FAQ

Q1: Is the 1756-A7K original and in stock?
A1: Yes, it is brand new, original Allen-Bradley, and available in our warehouse.

Q2: How many modules can the chassis accommodate?
A2: The 1756-A7K supports up to 7 ControlLogix modules.

Q3: What type of mounting does it require?
A3: Horizontal rear-panel mounting with 2 top and 2 bottom tabs is required.

Q4: How is grounding implemented?
A4: Functional ground uses 8 AWG copper wire; protective soil ground uses 14 AWG wire per NEC guidelines.

Q5: What is the operating temperature and humidity range?
A5: The chassis supports 5–95% relative humidity and standard industrial temperatures for PLC systems.

Q6: How soon can I receive this chassis?
A6: We have stock ready for shipment within 3 days to 2 weeks, depending on order size and logistics.