Allen Bradley 1746-OX8 | SLC 8 Point Digital Output Module

 

Description

The Allen-Bradley 1746-OX8 module is an SLC 500 channel to channel isolated relay output module. The operating temperature range for the module is 32 to 140 degrees Fahrenheit. The non-operating temperature range is -40 to 185 degrees Fahrenheit. The recommended non-condensing operating humidity range is 5 to 95%. The rated noise immunity meets the NEMA ICS 2-230 standard. The operating vibration rating is 0.015 inches of displacement at 5 to 57 Hertz. The operating shock rating for the 1746-OX8 module is 10 g. the module is certified by the UL, CSA, and CE standards. The rated heat dissipation per energized point for the module is 0.825 Watts. The minimum heat dissipation when no field power is applied is 2.59 points. The total heat dissipation for the module when all the outputs are energized is 8.6 Watts.

The Allen-Bradley 1746-OX8 is an SLC 500 digital I/O module. This output module comes with 8 high-current relay contact outputs that are individually-isolated. It is also an N.O. relay output module with relay contact ratings with a maximum of 30 A each for make and break at 120 Volts AC and a maximum of 15 A make and 1.5 A break at 240V AC. At a continuous 5 A for both AC voltages, the module has a make of 3600 VA and a break of 360 VA. For DC voltages, the maximum make and break are 0.22 A each at 125 Volt DC and both 1.2 A each at 24 Volt DC. Continuous 1 A at 125 Volt DC and 2 A at 24 Volts DC both have a make and break of 28 VA each. Status indicators are available with this module. It can be mounted in a chassis and has an open-type enclosure. You must remember to install and remove the module only when power is not applied to the chassis.

It has an output current of 3 A at 120 Volt AC and an output current of 1.2 A at 24 Volt DC. The operating voltage of this module ranges from 5-125V AC and 5 to 265 Volts DC. The backplane current consumption at 5 Volts DC is 0.085 A and 0.090 A at 24 Volt DC. It also has a maximum resistive load signal delay of 10 milliseconds for both OFF and ON. This module's minimum load current is 10 mA at 5 Volts DC and its maximum off-state leakage is 0 mA. Note that the continuous current per module should be limited to 1440 VA. This module has a NEMA standard ICS 2 to 230 noise immunity and electro-optical isolation of 1500 Volts between the I/O terminals and control logic. The operating temperature range of this module, particularly for the air surrounding the system, is from 0 to 60 degrees Celsius and the storage temperature ranges from -40 to 85 degrees Celsius. Its operating vibration has a displacement of 0.015 inches peak at 5 to 57 Hertz and an acceleration of 2.5 g at 57-2000 Hertz. The operating shock of this module is 10 g. The 1746-OX8 module has a heat dissipation of 0.825 watts per point, a minimum dissipation of 2.590 Watts, and a total dissipation of 8.60 Watts.

Q1: What is the main function of the Allen Bradley 1746-OX8 module?

A: The 1746-OX8 is an 8-point relay output module for SLC 500 PLC systems, designed to switch AC and DC loads such as motors, solenoids, and alarms.

Q2: Can the 1746-OX8 handle both AC and DC outputs?

A: Yes, it supports 5-125V DC and 5-265V AC, making it a versatile choice for different applications.

Q3: What is the maximum current per output?

A: Each relay output can handle up to 3A (resistive load).

Q4: Is the module isolated?

A: Yes, each output is electrically isolated, reducing the risk of short circuits and electrical noise.

Q5: How is the 1746-OX8 installed?

A: It is rack-mounted into an SLC 500 chassis slot and connects via the backplane for power and communication.

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