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1747-L20B
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Other Available Revisions for the 1747-L20B 1747-L20B//A1747-L20B//B
Common misspellings:
- l747-L20B
- 17A7-L20B
- 1747-120B
- 1747-L2oB
- 1747-L208
- 1747L20B
Technical Specifications for 1747-L20B
| Brand | Allen-Bradley / Rockwell Automation |
|---|---|
| Series | SLC-500 |
| Part Number | 1747-L20B |
| Product Type | Fixed Controller |
| Product Line | SLC 500 |
| Bulletin | 1747 |
| Inputs | 12 |
| Outputs | 8 |
| Output Type | Triac |
| Input Voltage | 120V AC |
| Line Power | 120 to 240V AC |
| Memory Capacity | 1K words |
| Current Rating | 1.25 A |
| Wire Size | 24 AWG |
| Operating Temperature | 0 to 60 degrees Celsius |
| LED Indicators | RUN, FORCED I/O and CPU FAULT |
About 1747-L20B
The Allen-Bradley 1747-L20B Fixed Controller is part of the SLC 500 series, and it has a 20-I/O point capacity with twelve 120 Volts AC input points and 8 Triac output points. This unit operates on a voltage of 120/240 Volts AC, and it fits in a 2-slot expansion chassis, which is optional. This controller has a maximum apparent power of 50 Volts-Amps, and it provides a fuse protection voltage of 120 to 240 Volts AC at 1.25 Amps of current. With a program memory of 1K instructions, this fixed controller uses the SLC 500 A.I. The Allen-Bradley 1747-L20B Fixed Controller features a lithium battery with a 5-year lifespan and it has RAM with a battery with a 2-week lifespan including. It supports an UVPROM or EEPROM backup option, and it has no high-speed counter. Additionally, this module can be mounted on the back panel in a system, and it uses enclosure mounting tabs and #12 or #10 screws.
The Allen-Bradley 1747-L20B SLC 500 Fixed Controller features 8 milliseconds per 1K instructions of rated processor program scan time. It has 20 to 700 milliseconds of load-dependent holdup time. This controller has various LED indicators that show various module status updates, and they include the “RUN,” “FORCED I/O,” and the “CPU FAULT” LEDs. The circuit of this fixed controller uses the 24 AWG wire size. The Allen-Bradley 1747-L20B controller operates at a temperature ranging from 0 to 60 degrees Celsius, with a relative humidity range of 5 to 95 percent (non-condensing). Additionally, the controller is made to be stored in a temperature range of -40 to 85 degrees Celsius. The operational shock rating of this controller is 30 G and it can tolerate a vibration of up to 2.5 G at 10 to 500 Hertz.
The 1747-L20B Fixed Controller is a member of the Allen-Bradley SLC 500 product line. It comes with twelve 120 Volts AC input points, and 8 AC Triac output points with a line power of 120 to 240 Volts AC.
F.A.Q for 1747-L20B
