1734-EP24DC POINT I/O Extension Power Module 24V DC | Allen-Bradley

The Original New Allen-Bradley 1734-EP24DC POINT I/O Extension Power Module is a 24V DC power/bus extension module designed to expand the power capacity of POINT I/O distributed I/O systems. It provides additional backplane (POINTBus) current and field power to downstream I/O modules, enabling larger system configurations beyond the capacity of the communication adapter alone. Installed between I/O modules in the 1734 system, it breaks the field power bus and creates a new power segment for modules to the right.

Core Engineering Highlights:
1.3A POINTBus output current (horizontal, 19.2-28.8V input) | 24V DC nominal input (10-28.8V range) | Supports 4-17 additional I/O modules | Horizontal or vertical mounting | Reverse polarity protected

Key Features:

• Original New Allen-Bradley 1734-EP24DC module

• 24V DC input voltage (nominal), 10-28.8V DC operating range

• POINTBus output current: 1.3A @ 19.2-28.8V input (horizontal), 1A @ 10-19.2V input (horizontal), 1A @ 10-28.8V input (vertical)

• Supports 4 to 17 additional I/O modules (depending on module current ratings)

• Passes 24V DC field power to I/O modules on the right

• Extends backplane bus power beyond the 0.8A limit of 1734-AENTR adapter

• Breaks field power bus for functional partitioning of power segments

• 1 green field power status indicator + 1 green 5V system power indicator

• DIN rail mounting, open-style enclosure (IP20)

• Removable Terminal Block (RTB) for simplified wiring

Applications:

• Expanding POINT I/O system power capacity beyond adapter limits

• Adding 4-17 additional I/O modules to existing POINT I/O systems

• Functional partitioning of field power into separate segments

• Large distributed I/O architectures requiring scalable power distribution

• Industrial automation control panels

• Factory automation systems with high I/O density requirements

Technical Specifications:

• Catalog Number: 1734-EP24DC

• Module Type: POINT I/O 24V DC Expansion Power Supply (Power/Bus Extension Module)

• Input Voltage Rating: 24V DC nominal, 10-28.8V DC operating range

• Field Side Power Requirements: 24V DC @ 400 mA max

• Inrush Current: 6A for 10 ms max

• POINTBus Output Current: Horizontal mounting: 1.3A @ 19.2-28.8V input; 1A @ 10-19.2V input; Vertical mounting: 1A @ 10-28.8V input

• I/O Module Capacity: 4-17 modules, depending on current rating of each module

• Indicators: 1 green field power status indicator, 1 green 5V system power indicator

• Input Overvoltage Protection: Reverse polarity protected

• Isolation Voltage: 50V continuous

• Power Consumption: 9.8W max

• Power Dissipation: 3.0W max @ 28.8V DC

• Thermal Dissipation: 10 BTU/hour

• Interruption: Output voltage stays within specs when input drops for 10ms @ 10V with max load

• Dimensions (HxWxD): 76.2 x 25.4 x 133.4 mm (3.0 x 1.0 x 5.25 in.)

• Weight: Approx. 120g (4.3 oz)

• Enclosure Type: Open-style (IP20)

• Mounting: DIN Rail (horizontal or vertical)

• Module Location: Between I/O modules in 1734 system; breaks field power bus

• Terminal Base Screw Torque: 0.6 N·m (7 lb-in)

• Operating Temperature: –20°C to +55°C

• Storage Temperature: –40°C to +85°C

• Certifications: CE, C-TICK, cULus, KC, MARINE

• UPC: 612598206872

• GTIN: 00612598206872

System Compatibility:

• Rockwell Automation POINT I/O communication adapters (1734-AENT, 1734-AENTR, 1734-ADN DeviceNet adapter)

• POINT I/O backplane systems

• 1734 series digital, analog, and specialty I/O modules

• ControlLogix, CompactLogix, and GuardLogix controllers

• EtherNet/IP, ControlNet, and DeviceNet networks

Important Usage Notes:

• Use only with POINT I/O adapters, such as the 1734-ADN DeviceNet adapter

• Do not connect 120/240V AC power to this supply

• Backplane current can be extended beyond the adapter's 0.8A limit by adding 1734-EP24DC modules

• Add multiple 1734-EP24DC modules to reach the 63 module maximum

Related Products:

• 1734-AENTR – EtherNet/IP adapter for distributed POINT I/O systems

• 1734-EP24DCK – Conformal coated version for harsh environments

• 1734-IB8 – 8-channel digital input module

• 1734-OB8 – 8-channel digital output module

• 1734-IB8S – 8-channel safety input module (SIL 3 / PLe)

• 1734-OB8S – 8-channel safety output module (SIL 3 / PLe)

• 1734-TB – Terminal base for field wiring (screw type)

• 1734-TBS – Terminal base for field wiring (spring clamp)

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Allen-Bradley, POINT I/O, ControlLogix, CompactLogix, and GuardLogix are trademarks of Rockwell Automation.