Allen Bradley 1734-OW4 | POINT I/O 4-Point Relay Output Module

Product Description

The Allen Bradley 1734-OW4 POINT I/O module provides four isolated electromechanical relay outputs, designed for flexible digital output control in distributed automation systems. Each channel uses Form A (normally open) contacts, offering reliable switching for both AC and DC loads. With robust isolation, compact design, and long contact life, this module is well-suited for industrial applications requiring dependable relay-based output control.

Technical Specifications

• Manufacturer Allen Bradley

• Product Line POINT I/O

• Product Type Digital Output Module

• Part Number 1734-OW4

• Outputs per Module 4 Form A isolated (NO) relay contacts

• Off-State Leakage Current Max 1.2 mA @ 240 V AC (with bleed resistor through snubber circuit)

• Backplane Power 5 V DC, 90 mA

• Power Consumption 0.8 W

• Power Dissipation Max 0.5 W

• Contact Ratings

• 120/240 V AC, 2.0 A @ 50/60 Hz

• 1800 VA make, 180 VA break

• 5–30 V DC, 2.0 A, R150

• Isolation Voltage 250 V, tested at 2550 V DC for 60 s (field-to-system and between contact sets)

• Switching Frequency Max 1 operation per 3 s (0.3 Hz @ rated load)

• Electrical Contact Life Minimum 100,000 operations @ rated load

• Wiring Category Category 1 (signal ports)

• Wire Size 0.25–2.5 mm² (22–14 AWG), solid or stranded copper, rated 85 °C or higher, insulation max 1.2 mm

• Terminal Base Screw Torque Determined by installed terminal block

• Weight 0.06 kg

Application Scenarios

• Relay-based digital output control in distributed POINT I/O systems

• Switching AC or DC loads in industrial automation panels

• Applications requiring isolated relay contacts for safety and reliability

FAQ

Q: How many relay outputs does the 1734-OW4 provide?  A: It includes four Form A (normally open) isolated relay outputs.

Q: What is the expected contact life?  A: At least 100,000 operations under rated load conditions.

Q: What isolation voltage is supported?  A: 250 V, tested at 2550 V DC for 60 seconds.

Comparable Models

• 1734-OW4: 4-point relay output module (this model)

• 1734-OB8: 8-point DC transistor output module

• 1734-OV4: 4-point DC sinking output module