OVERVIEW

Official designation: Allen-Bradley 1745-E151 (SLC 150, I/O Expansion Unit)

Role/Application: An I/O expansion unit for the SLC 150 programmable controller system, providing additional I/O capacity with 20 AC inputs (current sinking) and 12 AC outputs (Triac/Hard Contact) on the legacy platform.

KEY SPECS SUMMARY

Power: 85V AC to 132V AC input

Interfaces / Ports: 20 input, 12 output terminals

Indicators: 20 red LEDs for input status

Operating Temp: 0 degrees C to 60 degrees C

Platform / Compatibility: SLC 150, SLC 100 Controller

Limit: 15 VA maximum power required

Lifecycle: Discontinued, Obsolete

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum power consumption of the 1745-E151 expansion module?

A: The maximum power required for this expansion unit is 15 VA.

Wiring & Installation:

Q: What size wires are the input and output terminals of the expansion unit designed to accept?

A: The self-lifting pressure plates accept up to two number 14 AWG wires per terminal.

Troubleshooting & Compatibility:

Q: Which interconnect cable is used to link the 1745-E151 expansion unit to the processor?

A: The 1745-C2 (10-pin to 10-pin) cable connects this unit to the processor or another unit.

Replacement & Upgrades:

Q: Is the 1745-E151 module available in different series or hardware revisions?

A: Yes, this module was produced in multiple series revisions, including Series A, B, and C.