WhatsApp / Wechat：+86 18150087953 / +86 18005022138
Email：
Description
| Brand | Allen-Bradley |
| Series | MicroLogix 1500 |
| Part Number/Catalog No. | 1764-28BXB |
| Function | Base Controller |
| Module Type | Base Unit |
| I/O Count | 16 inputs/12 outputs |
| No. of Inputs | 16 inputs |
| Max Expanded I/O Count | 512 |
| Input channel Voltage | 24V dc, sink/source |
| Input Voltage | 24 Volts DC |
| High Speed Input Frequency | Eight (8) 20 kHz input |
| Output Source | Relay Port and DC FET |
| No. of Outputs | Six (6) Relay; Four (4) Standard 24VDC Transistor; Two (2) Fast 24VDC |
| Relay Output channel Voltage | 24-125VDC; 120-240VAC |
| Input Circuit Type | 24 Volt DC Sink/Source |
| Output Circuit Type | 6 Relay, 6 FET Transistor |
| Transistor Output channel Voltage | 20.4VDC – 26.4VDC |
| Line Power | 20.4-30.0 Volts DC |
| High Speed Output Frequency | 20 kHz output |
| Power Supply Voltage | 20.4 to 30VDC |
| Power Supply Usage | 30 Watts |
| Power Supply Inrush Current | 24V dc = 4A for 150 ms |
| Dimensions | 5.43 x 6.62 x 3.43 inches |
| Maximum Load Current | 400 mA |
| Product Lifecycle Status* | Discontinued/Obsolete |
| Compatible Processors | 1764-LSP and 1764-LRP |
| Mounting | Horizontal |
The Allen-Bradley 1764-28BXB base is a part of the Allen-Bradley Bulletin 1764 product category. This part number is a MicroLogix 1500 base unit series that features embedded I/O and accommodates a processor. It is an essential component in the system assembly of Allen-Bradley MicroLogix 1500 programmable controllers. In addition to the embedded inputs and outputs, the 1764-28BXB base unit houses the power supply and the communication port. It also serves as an interface to the expansion I/O as required by a system application. The 1764-28BXB 24 Volt DC Base Unit has 30 Watts of power consumption, 16 Watts of maximum load power, and 400 mA of maximum load current. It comes with Six (6) relay outputs and Two (2) isolated relays per unit. It has Eight (8) standard and Eight (8) fast 24 Volts DC inputs. The 1764-28BXB’s high-speed 20 kHz I/O is composed of Eight (8) inputs and Two (2) outputs. Additionally, it has Four (4) standard FET outputs and Two (2) fast FET outputs. The FET transistor is only available on this base unit.
The Allen-Bradley 1764-28BXB Base is a required piece of hardware that allows an assembled Allen-Bradley MicroLogix 1500 controller system to support the maximum number of I/O expansions. It has a width of 168 millimeters (6.62 inches) and a depth of 87 millimeters (3.43 inches). Its height is 138 millimeters (5.43 inches) when the DIN rail latch is open, and its height is 118 millimeters (4.65 inches) when it is closed. The 1764-28BXB is designed to be mounted horizontally on the compact expansion I/O.
