Allen-Bradley 1734-OA4 POINT I/O Digital AC Output Module 4-Channel

Product Description

The 1734-OA4 from Allen-Bradley is a compact POINT I/O digital output module designed to control AC loads in distributed I/O architectures. It provides four non-isolated sourcing outputs and is optimized for integration with POINT I/O systems where space efficiency and modular flexibility are required.

Engineered for reliable switching of AC devices such as contactors, solenoids, and indicator lamps, this module supports nominal output voltages of 120V and 220V AC. Its low power dissipation and efficient thermal performance make it suitable for high-density control panels.

The 1734-OA4 mounts on standard POINT I/O terminal bases and communicates via the POINTBus backplane, ensuring seamless integration with Allen-Bradley PLC platforms.

Key Technical Specifications

Output Characteristics

• Number of Outputs: 4 (non-isolated, sourcing)

• Nominal Output Voltage: 120 / 220V AC

• Operating Voltage Range: 74V AC minimum to 264V AC maximum

• Output Current: 2 A total per module

• On-State Voltage Drop: max. 1.0V at 0.75 A

• Surge Current: up to 16 A for 100 ms (repeatable every 10 seconds)

Electrical Parameters

• POINTBus Current Consumption: 75 mA @ 5V DC

• Isolation Voltage: 240V continuous, reinforced insulation

• Dielectric Strength: tested at 3250V DC for 60 seconds (field to system)

Power and Thermal Data

• Maximum Power Dissipation: 3.5 W

• Thermal Dissipation: approx. 11.9 BTU/hr

Mechanical Specifications

• Dimensions (L × W × H): 75.5 × 12 × 56 mm

• Weight: 0.03 kg

• Mounting: DIN rail via POINT I/O base

• Compatible Terminal Bases: 1734-TB, 1734-TBS, 1734-TOP, 1734-TOPS

Installation Details

• Terminal Screw Torque: 0.8 Nm (7 lb-in.)

• Open-style module for efficient heat dissipation

Applications

• Distributed I/O systems in manufacturing lines

• Control of AC actuators and field devices

• Packaging and material handling equipment

• Lighting and signaling control in industrial panels

FAQ

Q: Does this module provide channel isolation?
A: No, the outputs are non-isolated and share a common reference, which is typical for compact AC output modules.

Q: What types of loads can it control?
A: It is suitable for switching AC loads such as relays, contactors, solenoids, and pilot lights within the specified voltage and current limits.

Q: How is the module installed?
A: The module plugs into a POINT I/O terminal base and mounts on a DIN rail, simplifying installation and replacement.