Allen-Bradley 1734-EP24DC | POINT I/O Expansion Power Supply

Overview

The Allen-Bradley 1734-EP24DC is a POINT I/O expansion power supply that delivers reliable 24VDC field power to connected modules. It supports a voltage range of 10–28.8VDC and can power between four and seventeen I/O modules on the right side of the supply.

Technical Specifications

The 1734-EP24DC provides 10A of supply current with 9.8W power consumption. It offers 3W of power dissipation and 10 BTU/hour thermal dissipation. The unit handles inrush currents of 6A for 10 milliseconds, ensuring stability during startup. It also integrates reverse polarity protection to safeguard connected components.

Output and Mounting

When mounted horizontally, the 1734-EP24DC delivers 1A at 10–19.2V input and 1.3A at 19.2–28.8V input. In vertical mounting, it supplies 1A across the entire input range of 10–28.8V. This flexibility allows engineers to optimize installation based on cabinet layout. The module supports both horizontal and vertical mounting orientations.

Functional Design

The Allen-Bradley 1734-EP24DC creates a new field voltage partition segment, effectively separating field power from the modules on its left side. It extends the POINTBus power to the right side, powering up to 17 additional modules. Its dark gray housing provides quick visual identification during installation and maintenance.

Compatibility

The 1734-EP24DC seamlessly integrates with POINT I/O communication adapters, making it suitable for distributed I/O architectures. By using this expansion power supply, engineers can efficiently expand I/O systems without increasing footprint size.

Key Features

• Voltage Range: 10–28.8VDC, 24VDC nominal

• Output Current: 10A supply, 1A–1.3A POINTBus output

• Power Consumption: 9.8W

• Power Dissipation: 3W, 10 BTU/hour thermal

• Inrush Current: 6A for 10 ms

• Isolation Voltage: 50V continuous

• Protection: Reverse polarity safeguard

• Mounting: Horizontal or vertical orientation

• Capacity: Supports up to 17 modules