Relay contact ratings – Rockwell Automation 1746-XXXX SLC 500 Digital I/O Modules Installation Instructions User Manual
Page 43
SLC 500 Digital I/O Modules 43
Publication 1746-IN027D-EN-P - December 2012
Relay Contact Ratings
Voltage, operating
5V DC
5...125
24V DC
5...265
Signal delay, max resistive load
On = 10.0 ms
Off = 10.0 ms
Backplane current
consumption
5V DC
0.045 A
0.085 A
0.170 A
0.085 A
24V DC
0.045 A
0.090 A
0.180 A
0.090 A
Off-state leakage, max
0 mA
Load current, min
10 mA @ 5V DC
Continuous current per point
(1)
Relay Contact Ratings on page 43
.
Continuous current per module
8.0 A AC
8.0 A /Common
16.0 A AC
8.0 A /Common
16.0 A AC
8.0 A /Common
(4)
(1)
Recommended surge suppression: For relay contact outputs, refer to the SLC 500 Modular Hardware User Manual, publicatio
Connecting surge suppressors across your external inductive load will extend the life of SLC 500 relay contacts.
(2)
Certified for Class 1, Division 2 hazardous location by CSA.
(3)
Removable terminal block.
(4)
The continuous current per module must be limited so the module power does not exceed 1440V A.
Relay Contact Ratings – 1746-IO4, 1746-IO8, 1746-IO12, and 1746-IO12DC
Voltages
Amperes
(1)
(1)
The continuous current per module must be limited so the module power does not exceed 1440V A.
Amperes
(1)
Continuous
Volt-Amperes
Make
Break
Make
Break
Volts (AC), max
120
15
1.5
2.5
1800
180
240
7.5
0.75
Volts (DC), max
125
0.22
(2)
(2)
For DC voltage applications, the make/break ampere rating for relay contacts can be determined by dividing 28VA by the applied DC
voltage. For example, 28V A/48V DC = 0.58 A. For DC voltage applications less than 14V, the make/break ratings for relay contacts
cannot exceed 2 A.
1.0
28
24
1.2
(2)
2.0
28
Specifications – 1746-OW4, 1746-OW8, 1746-OW16, and 1746-OX8
Attribute
Value
1746-OW4
(2)
1746-OW8
(2)
1746-OW16
(2)(3)
1746-OX8
(2)(3)