Reliable expansion power supply 1734‑EP24DC for POINT I/O systems
Category: Power Supplies / I/O Systems
The 1734‑EP24DC is an expansion power supply module designed for Allen‑Bradley POINT I/O systems. It enables the extension of the 24 V DC field power bus, allowing more I/O modules to be added without overloading the primary adapter. It supports installation of up to 17 modules (depending on load) and supplies up to 10 A of current to the field side.
Technical specifications
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Type: Expansion power supply module
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Input voltage (nominal): 24 V DC
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Input voltage range: 10 to 28.8 V DC
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Field supply current: up to 10 A
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Inrush current: 6 A for 10 ms
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POINTBus output current:
• Horizontal mounting: up to 1.3 A
• Vertical mounting: up to 1 A -
Power consumption: up to 9.8 W
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Power dissipation: ~3 W
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Isolation voltage: 50 V continuous
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Mounting: DIN rail, horizontal or vertical
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Dimensions: approx. 133.4 × 25.4 × 76.2 mm
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Weight: ~100 g
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Operating temperature: –20 °C to +55 °C
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Shock: 30 g operating, 50 g non-operating
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Vibration: 5 g @ 10–500 Hz
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Protection: reverse polarity, overvoltage
Key advantages
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Extends POINT I/O systems with additional power
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Supports 4–17 modules depending on load
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Enables separate power segments
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Compact size for tight control panels
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Provides stable 24 V DC field supply
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Flexible installation and mounting options
Application and use cases of 1734‑EP24DC
Used in distributed I/O racks, machine control panels, and modular automation systems where the I/O system needs to be extended beyond the capacity of a single power supply. Ideal for powering sensors, actuators, or other field devices requiring 24 V DC.
About the manufacturer
Allen‑Bradley, part of Rockwell Automation, offers modular and scalable industrial control products. The POINT I/O platform ensures flexible I/O distribution, and the 1734‑EP24DC module ensures reliable, segmented power delivery in these systems.