The Allen-Bradley 1797-PS1N is a power supply module that is used in intrinsically safe system. This power supply is part of the Flex-Ex system with input voltage of 85-250VAC / quad-Ex DC out power supply. This power supply is packaged with an explosion proof enclosure, with wire entry of 1-inch for input and output terminations.

This quad output power supply features Four (4) channels of power output with each channel capable of providing power of 8.5 Watts. Each output is Intrinsically Safe (IS), galvanically isolated from the source. Each channel are independently IS limited.

The 1797-PS1N IS module mounting location are Class I Division 1 Groups A to D T4 (UL and C-UL), Class II Division 1 Groups E to G (UL and C-UL) and Class III (UL and C-UL). The IS output type of this power supply is are rated for Class I Division 1 Groups A to D T4 (UL and C-UL); Class II Division 1 Groups E to G (UL and C-UL) and Class III (UL and C-UL). This power supply is operated with a supply voltage range of 85-250VAC with input frequency of 47-63 Hz or 120-250 VDC. It has a Current consumption of 0.9 - 0.35 Amperes.

The 1797-PS1N has an input power requirement of 55 Watts and Power Dissipation of 21 Watts with Thermal Dissipation of 71.67 BTU/hr. Appropriate wires for terminating supply voltage to this module is maximum of 4 mm sq. or 12 AWG wire with insulation rating of 100 °C or 212 °F or higher and maximum insulation thickness of 1.2 mm or 3/64 inches.

The 1797-PS1N demonstrates exceptional performance when it comes to isolating the control system from unsafe power surges. The 1797-PS1N is universally compatible with multiple device types, ranging from I/O modules (synchronizes excellently for 1794 series Flex Ex I/O modules), communication adapters, is field devices, as well as fiber hubs. This makes the 1797-PS1N the perfect power supply choice in hazardous areas. This is exactly why the 1797-PS1N requires a NEMA certified NEMA 7B or IP66 enclosure type for optimal device safety in hazardous areas.

The input voltage of the 1797-PS1N ranges from 15 to 250 Volts AC and 120 to 250 Volts DC respectively. The current consumption ratings of the 1797-PS1N range from 0.9 to 0.35 Amps, respectively. The current rating of the device is less than or equal to 1 Amp. The frequency rating of the 1797-PS1N ranges between 47 and 63 Hertz. The power output rating of the 1797-PS1N is 4 x 8.5 Watts while the power input rating is fixed at 55 Watts. The power dissipation of the 1797-PS1N is 21 Watts. The temperature rating of the 1797 PS1N ranges between -4 and 158 degrees Fahrenheit. Without packaging, the dimensions of the 1797-PS1N stand at 6.9 x 6.9 x 5.51 inches, respectively in length, breadth, and height.