Specifications

Publication 1747-SG001E-EN-E - February 2013
Select SLC 500 I/O Modules 15
Nominal input
current
12 mA @ 120V AC 12 mA @ 240V AC 8 mA @ 24V DC
8 mA @ 24V AC
Current, off-state
input, max.
2 mA 2 mA 2 mA 2 mA 2 mA 2 mA 1 mA (DC)
1 mA (AC)
Inrush current,
max.
(1)
0.8 A 1.6 A 0.02 A (AC only)
Inrush current
time duration,
max.
0.5 ms 0.5 ms 0.5 ms 0.5 ms 0.5 ms 0.5 ms —
Signal on delay,
max.
35 ms max 35 ms max 35 ms max 35 ms max 35 ms max 35 ms max 15 ms max (DC)
25 ms (AC)
Signal off delay,
max
45 ms max 45 ms max 45 ms max 45 ms max 45 ms max 45 ms max 15 ms max (DC)
25 ms (AC)
(1) An AC input device must be compatible with SLC 500 input circuit inrush current. A current limiting resistor can be used to limit inrush current. However, the operating
characteristics of the AC input circuit are affected.
AC Input Modules
Specifications 1746-IA4 1746-IA8 1746-IA16 1746-IM4 1746-IM8 1746-IM16 1746-IN16
AC Output Modules
Specifications 1746-OA8 1746-OA16 1746-OAP12
Number of outptus 8 16 12
Points per common 4 8
6
(5)
Voltage category 120/240V AC
Operating voltage range 85…265V AC @ 47…63 Hz
Backplane current (mA) @ 5V 185 mA 370 mA
Backplane current (mA) @ 24V 0 mA 0 mA 0 mA
Voltage drop, on-state output, max 1.50V @ 1.0 A 1.50V @ 0.50 A 1.2V @ 2.0 A
Load current, min 10 mA 10 mA 10 mA
Leakage current, off-state output, max
(1)
2 mA 2 mA 2 mA
Surge current per point, max
(2)
10 A for 25 ms
17.0 A for 25 ms
(6)
Signal on delay, max (resistive load)
(3)
1 ms 1 ms 1 ms
Signal off delay, max (resistive load)
(5)
11 ms 11 ms 11 ms
Continuous current per point
(4)
1.0 A @ 30 °C (86 °F)
0.50 A @ 60 °C (140 °F)
0.50 A @ 30 °C (86 °F)
0.25 A @ 60 °C (140 °F)
2.0 A @ 30 °C (86 °F)
1.25 A @ 55 °C (131 °F)
1.0 A @ 60 °C (140 °F)
Continuous current per module 8.0 A @ 30 °C (86 °F)
4.0 A @ 60 °C (140 °F)
9.0 A @ 30 °C (86 °F)
6.0 A @ 60 °C (140 °F)
(1) To limit the effects of leakage current through solid-state oututs, a loading resistor can be connected in parallel with your load. For 120V AC operation, use a 15 kΩ, 2 W
resistor. For 240V AC operation, use a 15 kΩ, 5 W resistor.
(2) Repeatability is once every 1 s @ 30 °C (86 °F). Repeatability is once every 2 s @ 60 °C (140 °F).
(3) Triac outputs turn on at any point in the AC line cycle and turn off at AC line zero cross.
(4) Recommended surge suppression: For triac outputs when switching 120V AC inductive loads, use Harris Metal-oxide Varistor, model number V220MA2A. Refer to the SLC
500 Modular Hardware Style User Manual, publication 1747-UM011
for more information on surge suppression.
(5) The 1746-OAP12 module features a fused common and blown fuse LED indicator.