Allen-Bradley 1746-P2 | 120-220V AC Input

Allen-Bradley 1746-P2 Power Supply Module

The Allen-Bradley 1746-P2 is a high-capacity power supply for SLC 500 systems. This module delivers substantial power for expanded I/O configurations. It supports demanding applications with reliable 5V DC power. The 1746-P2 ensures stable operation in industrial automation environments.

Core Specifications

• Brand & Series: Allen-Bradley SLC 500
• Model Number: 1746-P2 power supply module
• Input Voltage: 120 to 220 Volts AC range
• Input Power: 70 Watts maximum capacity
• Typical Requirement: 180 VA line power

Output Performance

• 5V DC Backplane Current: 5 Amps maximum output
• 24V DC Backplane Current: 0.46 Amps sensor power
• Internal Capacity: 5A at 5V DC, 0.96A at 24V DC
• Output Voltage Range: 18 to 30 Volts DC adjustable

Electrical Characteristics

• Frequency Range: 47 to 63 Hertz operation
• Inrush Current: 20 Amps maximum at startup
• CPU Hold-Up Time: 20 ms at full load conditions
• No-Load Hold-Up: 3000 ms power retention

Physical & Installation Details

• Weight: 0.79 kg (1.74 pounds)
• Installation Location: 1746 series chassis slot
• Module Type: Power supply for PLC systems

System Requirements & Installation

• Install in compatible 1746 chassis with proper slot
• Ensure AC power source provides 120-220V within range
• Calculate total module current draw before installation
• Verify 5A maximum is sufficient for all connected modules
• Allow adequate ventilation around power supply unit

Frequently Asked Questions (FAQ)

What applications need the 1746-P2 instead of the P1 model?

The 1746-P2 is ideal for systems requiring more than 2A at 5V DC, supporting larger I/O configurations.

How does the 5A capacity benefit my system?

Higher current allows more power-hungry modules and greater system expansion without additional supplies.

What does "CPU hold-up time" mean for operation?

It indicates how long the supply maintains output after input power loss, allowing for orderly system shutdown.

Can this module handle frequent power cycling?

Yes, with 20A inrush current rating, it manages repeated startups without damage.

Is the output voltage adjustable for different needs?

The 18-30V DC output range allows adjustment to match specific sensor and device requirements.

What maintenance does this power supply require?

Regular inspection of connections and ventilation is recommended for long-term reliability.

For technical specifications or to order the 1746-P2, contact sale@etowonauto.com.

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