1746-P2 AC Chassis Power Supply 5A at 5V DC

The 1746-P2 is an AC chassis power supply designed to provide regulated backplane power for modular control and I/O assemblies.

It accepts either 85–132 V AC or 170–265 V AC input, selected by the front voltage jumper. The supply provides 5 A at 5 V DC and 0.96 A at 24 V DC for the installed controller and I/O modules.

A separate isolated 24 V DC, 0.2 A user output is also available for compatible low-current peripheral devices.

Key Features

• 120/240 V AC selectable input
• 5 A backplane output at 5 V DC
• 0.96 A backplane output at 24 V DC
• Isolated 24 V DC auxiliary output
• Left-side chassis mounting
• Power status indicator

Typical Applications

• Existing modular controller chassis
• Local I/O assemblies
• Machine retrofit projects
• Legacy equipment maintenance

Power Capacity

The installed module load must remain within both limits:

• 5 A at 5 V DC
• 0.96 A at 24 V DC

The current requirements of every controller, communication and I/O module should be calculated before installation.

Input Voltage Selection

Set the input jumper before applying power:

• 120 V position for 85–132 V AC
• 240 V position for 170–265 V AC

Incorrect jumper selection can damage the power supply.

1746-P2 vs 1746-P1

1746-P2

5 A at 5 V DC

0.96 A at 24 V DC

Suitable for higher chassis loads

1746-P1

2 A at 5 V DC

0.46 A at 24 V DC

Suitable for smaller configurations

FAQ

Q1: What input voltage does 1746-P2 support?

A1: It supports 85–132 V AC or 170–265 V AC with the correct jumper setting.

Q2: What is the 5 V backplane capacity?

A2: It provides up to 5 A at 5 V DC.

Q3: Does it provide an external 24 V output?

A3: Yes. It provides an isolated 24 V DC output rated at 0.2 A.

Q4: Where is the power supply installed?

A4: It mounts on the left side of the compatible chassis.

Q5: Can it replace 1746-P1?

A5: It has higher output capacity, but chassis compatibility, wiring and load requirements must still be checked.