1794-OW8 1794OW8 AB AB Flex 8 Point Relay Output Module
⇒ Click here for good price 1794-OW8
| Brand/Manufacturer | AB/USA |
| Part Number | 1794-OW8 |
| Alternate Part Number | 1794-OW8 |
| Description | MOTOR SERVO |
| Dimennsions | 6.2x5x10cm |
| Weight | 0.14kg |
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Product Details
The AB 1794-OW8 is a FLEX I/O digital contact (relay) module. Eight
isolated Normally-Open or N.O. contacts in this module are
electromechanical and they can switch up to 2 Amps at up to 230
Volts AC and 125 Volts DC. It has a switching frequency of 0.3
Hertz, with 1 operation every 3 seconds. This module also has a
mean bounce time of 1.2 milliseconds. Use only +24 Volts DC power
for the 1794-OW8’s power terminals because variations in relay
switching time of the outputs may cause one of the relays to
momentarily switch the total load current. The entire module
measures 1.8 x 3.7 x 2.1 inches. It is compatible with several
terminal base units, namely the 1794-TB3, 1794-TB2, 1794-TBN,
1794-TB3S, 1794-TB3K, 1794-TBNF, 1794-TBNKF, and the 1794-TB3SK. It
also has a mechanical life of 100,000 operations at rated loads.
The resistive relay output current ratings of the 1794-OW8 are 2
Amps at 5 to 30 Volts DC, 0.22 Amps at 125 Volts DC, and 2 Amps for
125 Volts DC and 250 Volts DC. The module also has a continuous
isolation voltage of 250 Volts for relay to another relay, to the
backplane, and to the power, and 50 Volts for power to the
backplane. The external DC supply voltage range of this module is
19.2 to 31.2 Volts DC and it includes the 5% AC ripple and a
nominal external DC supply current of 125 mA. It has a maximum
off-state leakage current of 1 mA at 240 Volts AC through a
snubber. The 1794-OW8’s initial contact resistance is 30 mOhms and
its minimum contact load is 100 µA at 100 mV DC. It also has a
maximum power dissipation of 5.5 Watts and a maximum thermal
dissipation of 18.8 BTU/hour, both at 31.2 Volts DC. The maximum
output delay time for both the OFF to ON and the ON to OFF states
are 10 milliseconds.
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If you need detailed technical information, welcome to contact us.
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