Digital Expansion Terminal Block CompactBlock LDX I/O 15
Publication 1790-IN005C-EN-P - January 2015
AC/DC Relay Output Expansion Block – 1790-TOW8X
AC Input Expansion Block – 1790-T8AOX
Attribute
Value
Relay type
Form A, normally open
Single pole, single throw
Indicators
8 green status
Common type
1 point/1COM
Output voltage range,
load dependent
5…28V DC @ 2.0 A resistive
48V DC @ 0.8 A resistive
125V AC @ 2.0 A resistive
250V AC @ 2.0 A resistive
Minimum load, per point
100
A, 100 mV DC
Off-state leakage, max
1.5 mA
On-state voltage drop,
max
0.5V DC @ 2.0 A, resistive load, 24V DC
Initial contact resistance
30 m
Expected contact life
300K cycles resistive
100K cycles inductive
Output delay time, max
OFF to ON
ON to OFF
10 ms
10 ms
Field power voltage range 19.2…28.8V DC
Field power dissipation
2.3 W @ 28.8V DC
Attribute
Value
Inputs per expansion block 8 points non-isolated
Indicators
8 green – input status
Common type
8 points/8COM
On-state voltage range
79V AC min
110V AC nom
132V AC max
Input impedance
18 K
On-state current, max
9 mA @ 132V AC