Industrial Automation Output Solution – Allen-Bradley 1734-OB4E | POINT I/O Series
Where This Product Is Used
The Allen-Bradley 1734-OB4E is a 4-point 24VDC sourcing digital output module from the Rockwell Automation POINT I/O platform. It is widely deployed in the following industrial environments:
- Automotive Assembly Lines – Controls solenoid valves, actuators, and indicator lights on body-in-white and powertrain lines.
- Food & Beverage Processing – Drives conveyor motors, pneumatic cylinders, and filling machine actuators in hygienic production cells.
- Pharmaceutical Manufacturing – Interfaces with batch control systems requiring compact, modular I/O in validated environments.
- Material Handling & Logistics – Activates diverters, sorters, and gate controls in high-throughput distribution centers.
- Water & Wastewater Treatment – Operates pump starters, valve actuators, and alarm outputs in remote panel installations.
- Machine Tool & Packaging OEM – Embedded in compact machine panels where DIN-rail space is at a premium.
Technical Specifications
| Attribute | Value |
|---|---|
| Catalog Number | 1734-OB4E |
| Series / Platform | POINT I/O |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Module Type | Digital Output (Sourcing) |
| Number of Output Points | 4 |
| Output Voltage | 10–28.8 VDC (nominal 24 VDC) |
| Output Current per Point | 0.5 A continuous |
| Total Module Current | 2.0 A max |
| Output Type | Solid-state sourcing (PNP) |
| Backplane Current (5 VDC) | 75 mA |
| Backplane Current (24 VDC) | 0 mA (field-powered) |
| Operating Temperature | 0 to 55 °C (32 to 131 °F) |
| Storage Temperature | -40 to 85 °C |
| Relative Humidity | 5–95% non-condensing |
| Mounting | POINT I/O DIN-rail adapter (1734-TB, 1734-TBS, etc.) |
| Dimensions (H × W × D) | Approx. 94 × 12 × 54 mm |
| Weight | Approx. 40 g |
| Certifications | UL, CE, C-Tick, ATEX Zone 2 |
Why Engineers Specify This Model
- Ultra-slim 12 mm profile – The narrowest footprint in the POINT I/O family, maximizing channel density per DIN-rail segment.
- Electronic short-circuit protection – Built-in current limiting and thermal shutdown protect field wiring and downstream devices without external fusing per point.
- Hot-swap capability – Modules can be inserted and removed under power, minimizing planned downtime during maintenance windows.
- Integrated diagnostics – Per-point fault reporting over the backplane enables rapid fault isolation via Studio 5000 / RSLogix 5000 tag-based diagnostics.
- Scalable architecture – Mix and match with 1734 analog, input, and specialty modules on a single adapter for application-right I/O density.
- Wide adapter compatibility – Supported on EtherNet/IP (1734-AENT/AENTR), DeviceNet (1734-ADN), ControlNet (1734-ACN), and PROFIBUS (1734-APB) adapters.
Complete System Bill of Materials
A typical POINT I/O node using the 1734-OB4E requires the following components:
- 1734-OB4E – This output module (qty as required)
- 1734-AENT or 1734-AENTR – EtherNet/IP adapter (single or dual-port)
- 1734-TB or 1734-TBS – Screw or spring-clamp terminal base
- 1734-EP24DC – End cap with 24 VDC power supply connection
- 1756-L8x or 5069-L3x – ControlLogix or CompactLogix controller (application dependent)
- 24 VDC DIN-rail power supply – Sized to total field load current
Compliance & Industry Standards
- UL Listed (UL 508) – Industrial Control Equipment
- CE Marked – EMC Directive 2014/30/EU & Low Voltage Directive 2014/35/EU
- ATEX II 3 G Ex nA IIC T4 Gc – Zone 2 hazardous location rated
- IECEx certified
- RCM (C-Tick) – Australian/New Zealand EMC compliance
- RoHS compliant
- REACH compliant
Quality Assurance & Sourcing
Every 1734-OB4E unit supplied by Konmask.com undergoes a structured verification process:
- Visual inspection – Label integrity, housing condition, connector pin check
- Functional power-on test – Output switching verified at rated voltage
- Firmware / revision verification – Series and firmware revision documented per shipment
- Anti-counterfeit screening – Cross-referenced against Rockwell Automation authorized distributor markings
- Traceability – Lot and date code recorded; certificate of conformance available on request
How to Source This Part
- Add the 1734-OB4E to your cart and proceed to checkout at Konmask.com.
- For volume orders (>10 units) or project BOM pricing, email support@konmask.com for a formal quotation within 24 hours.
- Expedited shipping (DHL / FedEx Express) available for urgent MRO requirements.
- Lead time: In-stock units ship within 1–2 business days; ex-stock lead time quoted per availability.
Application-Specific FAQ
Q: Can the 1734-OB4E drive inductive loads such as solenoid valves directly?
A: Yes. The module includes built-in transient suppression. For loads exceeding 0.5 A per point, use an external relay or solid-state relay interposer.
Q: Is the 1734-OB4E compatible with the 1734-AENTR dual-port EtherNet/IP adapter?
A: Yes. It is fully compatible with all 1734-series adapters including the AENTR for Device-Level Ring (DLR) topology.
Q: What is the difference between 1734-OB4E and 1734-OB4?
A: The 1734-OB4E includes electronic short-circuit protection per output point, whereas the 1734-OB4 does not. The OB4E is the preferred specification for new designs.
Q: Can this module be used in a Class I Division 2 (NEC) hazardous location?
A: The 1734-OB4E carries ATEX Zone 2 certification. For NEC Class I Div 2 applications, consult the Rockwell Automation product certification document (Pub. 1734-TD002).
Q: What Studio 5000 / RSLogix 5000 Add-On Profile (AOP) is required?
A: Use the POINT I/O AOP available from the Rockwell Automation Product Compatibility and Download Center (PCDC). No separate AOP is required for basic I/O operation.
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