Allen Bradley


Allen Bradley


The 1764-24BWA is a base unit that provides installation housing for the MicroLogix 1000 modules. This product is a part of the Allen Bradley 1764 din rail or pane mountable MicroLogix family.

The 1764-24BWA acts as the base unit where most MicroLogix 1000 modules are attached and installed including Programmable Logic Controllers 1764-LSP and 1764-LSP. It has an embedded circuitry that acts as the local bus that distributes backplane power among all the attached 1764 MicroLogix modules. It can also be used with the Real-Time Clock, Memory and Data Access Tool (DAT). This base unit accepts a power supply range of of120/240V ac. Its is also embedded with 12 inputs composed of 8 Standard 24VDC inputs capable of sinking or sourcing configuration and 4 Fast 24VDC for use with encoders, totalizers and other high frequency inputs. The High speed I/O supports switching resolution of 20kHz input. It also an output module embedded that is made of 12 Relay outputs with isolation in every 2 outputs. The base unit is compatible with the MicroLogix 1000 processors, 1764-LSP and 1764-LRP. The Height of the base unit and overall dimensions slightly differs when the latch is open or closed. It has dimensions of Height 138 mm (5.43 in.) - Latch open; 118mm (4.65 in.) - latch closed; Width168 mm (6.62 in) and Depth (87 mm (3.43 in). The width and depth remains the same regardless of the positions of latch mechanism. The base support horizontal mounting with a DIN rail or directly to a mounting plate or panel. Either of the installation method, always provide a clearance of 50 mm (2 inch) clearance on all sides of the controller to promote adequate air flow. When installing using a DIN rail, use a flat-head screw-driver to engage and dis-engage the DIN rail latches. If mounting directly to a mounting panel, use #8 or M4 screws. The base unit has an integrated electronic circuitry that houses the 5VDC power distribution to the modules. Before touching the unit, touch a grounded object or wear a electrostatic prevention accessory. This is to prevent electrostatic damage to the base unit. Ensure environmental specifications have been met in the installation area. The base unit can operate at a vibration rating of 10 to 500 Hz, 5G, 0.030 in. max. peak-to-peak and for Relay Operation, 2G.

Part Number 1764-24BWA
Product Type Controller
Inputs 12
Outputs 12
Line Power 85-265V AC @ 47-63 Hz
Power Supply Usage 70 VA
Power Supply Inrush 120V ac = 25A for 8 ms
Input Circuit Type 120V ac
Open Circuit Type Relay
On-state Voltage Range 14-30V DC
Manufacturer: Rockwell Automation
Brand: Allen-Bradley
Product Family: MicroLogix
Product Type: Base Unit
Part Number: 1764-24BWA
Supported CPU: 1764-LSP; 1764-LRP
Power supply: 120/240V ac
Power Supply Usage: 70 VA
Power Supply Inrush: 120V ac = 25A for 8 ms 240V ac = 40A for 4 ms
Number of I/O 12 Input; 12 Outputs
Input Circuit Type: 120 VAC
Output Circuit Type: 24VDC; Sink / Source
Operating Temp: +0°C to +55°C (+32°F to +131°F) ambient
Storage Temp: -40°C to +85°C (-40°F to +185°F) ambient
Operating Humidity: 5% to 95% relative humidity (non-condensing)

Distribution Cache Shipping Info and Options

Shipping Carriers: Here at Distribution Cache we ship using UPS, FedEx, DHL, or TNT. In most cases we get very competitive rates based on our volume and will be happy quote shipping cost to your location upon request. We also know that many customers would prefer to ship collect on their own account numbers and welcome this option.

Shipping Blind: We recognize that many of our customers intend to re-sell the product to their end user. We respect our customer’s relationships with their clients and offer blind shipping as an option to ensure that the package arrives in the most clandestine way possible.

Shipping Process: We take pride in the way we package your order and spare no cost in making sure that it arrives safely at your facility. In the case of new parts, we are always sure to package the factory box inside another larger box for safe transit. For reconditioned parts we often use Distribution Cache customized packaging that is specially made to protect the products from the bumps and falls present during shipment.


Shipping Options:

Next Day Air Early AM - This service is the fastest overnight delivery option available. For most locations the package will be guaranteed by 8:30AM.

Next Day Air – This service guarantees delivery by 10:30AM and is the most frequently used option for overnight shipments.

Next Day Air Saver – This cost saving overnight alternative guarantees delivery by 3PM the next day.

2nd Day Air – For domestic shipments that would take 3-5 days if shipped via Ground, sometimes having the order in 2 days is a great way to go

Ground – Ground is the most inexpensive shipping option provided. Please ask if we are doing a “free domestic ground” shipping promotion on your order. We often provide free ground shipping on larger orders.


Emergency Courier – At times we can help work with a courier service to get the part to your facility during downtimes scenarios. We prefer that the customer sets up the courier but we can be there to make sure the product is handed off to the driver. Please give us a call to see if this is an option on your order.

Please Note: Products listed as “ships today” can ship same-day if an order is placed before 4PM. For larger drives and motors we ask that notification for same-day shipments be provided by 2PM at the latest. For any products listed as “ships in 3-5 days”, please give us a call to see if this can be expedited.