Description

The 1734-OB4E output module from Allen-Bradley is a Point I/O 1734 series protected output module.

• Part Number/Catalog: No. 1734-OB4E
• Module Type: Digital DC Sourcing Output Modules
• Outputs: 4
• Output Voltage: 24 Volts DC
• Electronically Protected: Yes
• POINTBus Current: 75 milliamps
• Output Current: 3 amps/module
• Power Dissipation: 1.2 Watts
• Thermal Dissipation: 4.1 BTU/hour

The Allen-Bradley 1734-OB4E comes in a modular design which selects the I/O, terminal style, and network interface. It offers digital and analog selections and it can mount horizontally or vertically without de-rating. The module has up to 8 single-ended inputs and outputs and these come in thermocouple and RTD modules available with individually configurable channels.

It has onboard scaling and a choice of input filters. The 1734-OB4E has 4 current sourcing, electronically protected, and enhanced sourcing outputs. The 1734-OB4E has a conducted radio frequency of 10Vrms with 1kHz sine-wave 80% AM from 80 to 150 MHz.

It has a wire size of 2.5millimeters-0.34millimeters squared solid or stranded copper wire rated at 75 degrees Celsius or greater with 1.2-millimeter insulation maximum.

The model’s dimensions in inches are 2.21 x 0.47 x 2.97 inches and it has an ESD immunity of 6 kV contact discharges and 8 kV air discharges. Its indicators are 4 yellow output statuses, 4 red output fault indicators, and 2 green/red module network status indicators.

The 1734-OB4E’s isolation voltage is 50 Volts continuous, tested to withstand up to 2500 Volts DC for 60 seconds. It comes with 1 key switch position and a mass of 33.17g.It has a maximum OFF-state leakage of 0.5 mA and a max OFF-state voltage of 28.8 Volts DC.

The module has an ON-state current of 1.0mA min per channel and an ON-state voltage drop of 0.2 Volts DC. The 1734-OB4E has a 24 Volts DC nominal On-state voltage and a voltage range of 10 to 28.8 Volts DC.

While operating, its temperature is -20 to 55 degrees Celsius and it has an output current rating of 1.0 Amps not exceeding 3.0 Amps per module. The maximum output signal delay for ON to OFF and OFF to ON is 0.1 milliseconds.

The 1734-OB4E’s point bus current is 75mA maximum at 5 Volts DC. The power dissipation is 1.2W max at 28.8 Volts DC. The module has a surge current of 2 Amps for 10 milliseconds, repeatable for 3 seconds. It has thermal dissipation of 4.1 BTU/hour maximum at 28.8 Volts DC.