Expansion Unit | Allen-Bradley 1745-E103 SLC 100
The Allen-Bradley 1745-E103 is an I/O expansion unit designed to extend the input and output capacity of SLC 100 programmable controller systems. Powered by a selectable 120/240 VAC line voltage, this hardware unit allows control engineers to expand local automation loops without adding a second standalone processor.
Power Architecture and I/O Ratings
The module integrates a multi-voltage power supply that accepts 100/200 VAC or 120/240 VAC line inputs at 50/60 Hz. Its discrete input circuits operate on 10–30 VAC/DC control signals, providing flexibility for standard industrial field devices. The output stage features relay contacts rated for switching external loads across operating windows of 10–250 VAC or 10–125 VDC.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1745-E103 |
| Brand | Allen-Bradley |
| Product Type | SLC 100 Expansion Unit |
| Line Voltage | 120/240 VAC (100/200 VAC selectable), 50/60 Hz |
| Input Voltage | 10–30 VAC/DC |
| Output Voltage | 10–250 VAC / 10–125 VDC (50/60 Hz) |
| Weight | 1.79 kg |
Frequently Asked Questions
Q: Can the 1745-E103 run as a standalone controller? A: No, the 1745-E103 is an expansion unit and must be connected to an SLC 100 master programmable controller to operate.
Q: What line voltages can power the 1745-E103 expansion unit? A: The internal power supply supports alternating current line inputs of 100/200 VAC or 120/240 VAC at 50/60 Hz.
Expansion Unit | Allen-Bradley 1745-E103 SLC 100
Expansion Unit | Allen-Bradley 1745-E103 SLC 100
The Allen-Bradley 1745-E103 is an I/O expansion unit designed to extend the input and output capacity of SLC 100 programmable controller systems. Powered by a selectable 120/240 VAC line voltage, this hardware unit allows control engineers to expand local automation loops without adding a second standalone processor.
Power Architecture and I/O Ratings
The module integrates a multi-voltage power supply that accepts 100/200 VAC or 120/240 VAC line inputs at 50/60 Hz. Its discrete input circuits operate on 10–30 VAC/DC control signals, providing flexibility for standard industrial field devices. The output stage features relay contacts rated for switching external loads across operating windows of 10–250 VAC or 10–125 VDC.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1745-E103 |
| Brand | Allen-Bradley |
| Product Type | SLC 100 Expansion Unit |
| Line Voltage | 120/240 VAC (100/200 VAC selectable), 50/60 Hz |
| Input Voltage | 10–30 VAC/DC |
| Output Voltage | 10–250 VAC / 10–125 VDC (50/60 Hz) |
| Weight | 1.79 kg |
Frequently Asked Questions
Q: Can the 1745-E103 run as a standalone controller? A: No, the 1745-E103 is an expansion unit and must be connected to an SLC 100 master programmable controller to operate.
Q: What line voltages can power the 1745-E103 expansion unit? A: The internal power supply supports alternating current line inputs of 100/200 VAC or 120/240 VAC at 50/60 Hz.
