1756-A4 Allen-Bradley ControlLogix Chassis

Allen-Bradley 1756-A4 Chassis ControlLogix

Allen-Bradley

Allen-Bradley 1756-A4 Chassis ControlLogix

SKU: 1756-A4

In Stock

Dimensions: 21.2 x 26.8 x 16.8 cm
Country of origin: USA
Payment: T/T, Western Union
Shipping port: Xiamen

Categories : All Products, Allen-Bradley, Allen-Bradley ControlLogix & CompactLogix

Tags : Allen-Bradley ControlLogix, Allen-Bradley GuardLogix, Chassis Racks, Communication Modules

1 years warranty

Delivery time: 3-7 business days

Free 30 days return

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The Allen-Bradley 1756-A4, also cataloged as the 1756A4 Chassis, operates as a dedicated hardware component for physical module mounting and backplane signal distribution within ControlLogix networks.

Part Number Breakdown & Module Matrix

1756: Base product family identifier designating Allen-Bradley ControlLogix hardware platforms.
A4: Chassis configuration suffix specifying a four-slot horizontal physical backplane layout.

Hardware Specifications

Parameter	Specification
Model	1756-A4
Brand	Allen-Bradley
Origin	USA
Weight	1.05 kg
Shipping Dimensions	21.2 x 26.8 x 16.8 cm
Operating Temp	0 deg C to 60 deg C
Power Consumption	4 Watts max dissipation
Slots	Four (4) slots
Mounting	Horizontal
Backplane Current (5 VDC)	10 A
Backplane Current (24 VDC)	2.8 A

Industrial Control & Drive Interface Integration

Engineered for industrial automation environments, the chassis facilitates high-speed backplane bus communication velocities and supports Profinet and EtherNet/IP deterministic networks. It guarantees precise I/O density scaling and firmware flash compatibility across installed controller modules.

Package Ordering Information

1 x 1756-A4 ControlLogix 4 Slots Chassis unit
1 x Grounding mounting screw kit

Mechanical Installation Guidelines

Panel Mounting: Secure the chassis firmly to a grounded metal backplate using all designated mounting holes to withstand operational vibration.
Grounding Compliance: Connect the chassis ground lug directly to the enclosure ground bus using a low-impedance copper conductor.
Thermal Clearance: Maintain minimum vertical and horizontal spacing around the chassis housing to allow unimpeded convective airflow.

Frequently Asked Questions

Q: What is the total slot capacity of the 1756-A4 chassis?

A: The unit provides a total of four physical backplane slots for module installation.
Q: What is the maximum power dissipation rating for this backplane?

A: The maximum power dissipation capacity of the chassis backplane is 4 Watts.
Q: How much 5 VDC backplane current is available for connected modules?

A: The chassis supplies up to 10 amps of current on the 5 Volts DC backplane rail.
Q: What is the maximum 24 VDC backplane current output?

A: The backplane delivers a maximum current of 2.8 Amps on the 24 Volts DC rail.
Q: What is the official physical weight of the chassis unit?

A: The unboxed hardware unit weighs 1.05 kg with estimated shipping dimensions of 21.2 x 26.8 x 16.8 cm.
Q: What country is designated as the origin of manufacture?

A: The hardware unit is manufactured in the USA.
Q: Can modules be inserted or removed while power is applied?

A: ControlLogix backplanes support removal and insertion under power (RIUP) for compatible modules, provided proper precautions are followed.
Q: What mounting orientation is specified for this chassis?

A: The chassis is designed strictly for horizontal panel mounting configurations.

Shipping

Emergency Dispatch: Same-day shipping for in-stock orders placed before 2:00 PM (GMT+8).
Premium Carriers: Reliable global delivery via DHL, FedEx, and UPS to 150+ countries.
Flexible Options: We support shipping via your own carrier account (DHL/FedEx/UPS).
Industrial Packaging: Professional ESD protection and reinforced shock-absorbent packaging.

Returns

30-Day Window: Request a return within 30 days of receipt for eligible items.
Condition: Items must be in their original, factory-sealed condition with all tags.
Hassle-Free Process: Contact sales@maxwellplc.com for a return label and instructions.
Fast Refunds: Approved refunds are processed to your original payment method within 10 days.

Warranty

12-Month Guarantee: A comprehensive one-year warranty covers all functional defects.
Authenticity: Every part is guaranteed 100% original, brand-new, and genuine.
Expert Support: Dedicated technical assistance to verify and resolve any hardware issues.
Peace of Mind: Long-term reliability support for all your mission-critical automation parts.

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