Instruction Manual

Publication 1790-IN003A-EN-P - April 2001

AC/DC Relay Output Module Specifications

Important: Input and output wiring must be in accordance

with Class I, Division 2 wiring methods and in

accordance with the authority having

jurisdiction.

1790-OW8X

Relay type Form A, normally open

Single pole, single throw

Output voltage range (load dependent) 5-24V dc @ 2.0A resistive

30V ac @ 2.0A resistive

Output current rating (at rated power) 2.0A @ 5-24V dc resistive

2.0A @ 30V dc resistive

Minimum load 100µA, 100mV dc per input

Maximum on-state voltage drop 0.5V @ 2.0A, resistive load, 24V dc

Initial Contact Resistance 30m ohm

Expected contact life 300K cycles resistive

100K cycles inductive

Maximum off-state leakage 1.5mA maximum

Output delay time 10ms maximum on to off or 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 37-pin D-Shell connector