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1791-24A8 Allen-Bradley
Original price
$487.65
-
Original price
$4,087.83
Original price
$487.65
$487.65
-
$4,087.83
Current price
$487.65
Trusted By
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Allen-Bradley 1791-24A8 is a Remote I/O discrete AC block I/O module in the 1791 Block I/O family. It integrates 24 AC inputs and 8 AC outputs along with embedded power supply and Remote I/O interface for direct connection to PLC-2, PLC-3, PLC-5 or SLC-500 controllers via Remote I/O scanner. It facilitates distributed I/O architectures and is suited for mid-sized control applications requiring mixed AC discrete I/O at a remote location. The 1791-24A8 enables simplified wiring and modular expansion.
Best Suited For
- Distributed Remote I/O systems (RIO) with SLC-500, PLC-3 or PLC-5
- AC discrete signal interfacing at remote panels
- Applications requiring 24 AC inputs and 8 AC outputs in one module
- Installations with vertical or horizontal mounting orientation
Inputs / Outputs
24 AC inputs / 8 AC outputs
Remote I/O Interface
Embedded Remote I/O scanner compatible
Power Supply Input
85-132 VAC @ 150 mA
Discontinued Status
Discontinued
Technical Specifications
I/O & Electrical
Inputs per block
24 (3 groups of 8)
Nominal input voltage
120 VAC
On-state voltage range
79-132 VAC, 47-63 Hz
Off-state voltage (max)
35 V AC
On-state current
Min 5 mA @ 79 V, 60 Hz; Max 12.3 mA @ 132 V, 60 Hz
Off-state current (min)
2.3 mA (60 Hz)
Input impedance (max)
15 kΩ @ 60 Hz
Outputs per block
8
Output voltage range
20-123 VAC
Communication & Power
External power supply voltage
85-132 VAC
External power supply current
150 mA
Communication protocol
Remote I/O (57.6 k, 115.2 k, 230.4 k baud)
Physical & Environmental
Dimensions (H × W × D)
6.95 × 4.35 × 3.85 in (176.5 × 110.5 × 98 mm)
Mounting
Vertical (recommended) or horizontal; allow 2 in (50.8 mm) air gap
Operating temperature (air gap)
Module air gap must not exceed 60 °C (140 °F)
Weight
1.88 lbs (0.85 kg)
