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SKU:1746-IN16
1746-IN16 SLC500 Allen-Bradley Digital Input | 16-Ch 24VAC/VDC
Manufacturer: Allen-Bradley
Product No.: 1746-IN16
Product Type: Input Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 350g
Shipping port: Xiamen
Warranty: 12 months
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Product Overview
The Allen-Bradley 1746-IN16 is a 16-channel digital AC/DC sinking input module for the SLC 500 series. It interfaces discrete field signals at 24VAC/VDC over a 10–30V range, occupying a single chassis slot. The module weighs approximately 0.35 kg (0.77 lb).
Technical Specifications
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Catalog Number | 1746-IN16 |
| Series | SLC 500 |
| Module Type | Digital AC/DC Input Module (Sinking) |
| Inputs | 16 channels |
| Voltage Range | 24 VAC / VDC (10–30V operating) |
| Nominal Input Current | 8 mA @ 24V DC; 8 mA @ 24V AC |
| Backplane Current (5V DC) | 0.085 A |
| Off State Current | 1 mA |
| Signal Delay (DC) | 15 ms |
| Signal Delay (AC) | 25 ms |
| Step Response | 100 ms in / 2.5 ms out |
| Watts Per Point | 0.35 W |
| Minimum Watts | 0.425 W |
| Total Watts | 6 W |
| Weight | 0.35 kg (0.77 lb) approx. |
| I/O Connection | 1746-HT and 1746-HCA |
Engineering Advantages
Sixteen sinking channels fit into a single slot, maximizing rack density. Each channel carries a dedicated LED indicator for at-a-glance field signal verification and troubleshooting. The 1 mA off-state current prevents false triggering from line leakage. Faster 15 ms response on DC signals suits time-critical interlocks. At roughly 0.35 kg, the module adds minimal weight to the chassis. It mounts directly to any 1746 local or expansion chassis bus connector.
Technical FAQs
Q1: How many channels and what voltage does it accept?
A1: 16 sinking channels at 24VAC/VDC nominal, operating over 10–30V.
Q2: What is the signal delay for AC versus DC?
A2: 15 ms for DC signals and 25 ms for AC signals on both transitions.
Q3: How much backplane current does it draw?
A3: 0.085 A at 5V DC, with 6 W total power consumption.
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