Rockwell Automation 1790-TXXXX Digital Expansion Terminal Block Compact Block LDX I/O - Manual (Page 19)

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Publication 1790-IN005B-EN-P - April 2003
AC/DC Relay Output Expansion Block Specifications
1790-TOW8X
Relay type Form A, normally open
Single pole, single throw
Output voltage range (load dependent) 5-28V dc @ 2.0A resistive
48V dc @ 0.8A resistive
125V ac @ 2.0A resistive
250V ac @ 2.0A resistive
Minimum load 100 µA, 100mV dc per point
Maximum on-state voltage drop 0.5V @ 2.0A, resistive load, 24V dc
Initial Contact Resistance 30m Ω
Expected contact life 300K cycles resistive
100K cycles inductive
Maximum off-state leakage 1.5mA maximum
Output delay time 10ms maximum on to off
10ms maximum off to on
Indicators 8 green status
Common type 1 point/1COM
General Specifications
Field Power Supply voltage - 24V dc nominal
Voltage range - 19.2-28.8V dc
Power dissipation - 2.3W @ 28.8V dc
Isolation I/O to logic: photocoupler isolation
Isolation voltage: 1250V ac rms
Wiring Terminal block (M3.0)
- screw torque: 7 inch-pounds
maximum (use copper or copper-clad
aluminum conductors