Allen-Bradley 1734-OB4 Digital DC Sourcing Output Module
$123.00
$320.00
Description
Allen-Bradley 1734-OB4 Digital DC Sourcing Output Module
The Allen-Bradley 1734-OB4, also cataloged as the 1734-OB4 Digital DC Sourcing Output Module, operates as a dedicated hardware component for 24 VDC discrete load switching within POINT I/O distributed control networks. The module provides four sourcing output channels with integrated status indication and communicates through a POINT I/O communication adapter over the POINTBus backplane.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1734-OB4 |
| Brand | Allen-Bradley |
| Origin | Not specified |
| Series | POINT I/O |
| Product Line | Point I/O 1734 |
| Module Type | Digital DC Sourcing Output Module |
| Outputs | 4 sourcing outputs |
| Output Voltage | 24 VDC |
| Output Current | 3 A per module |
| Output Protection | Electronically protected |
| POINTBus Current | 75 mA |
| Message Size | 1 Byte |
| Indicators | 4 yellow output status LEDs, 2 green/red module and network status LEDs |
| Wiring Base Assembly | 1734-TB or 1734-TBS |
| Mounting Style | DIN rail mounted |
| Power Consumption | 1.2 W |
| Thermal Dissipation | 4.1 BTU/hour |
| Weight | 0.13 lb |
I/O Density Scaling and Backplane Communication
The 1734-OB4 exchanges output status data through the POINTBus backplane and occupies a compact I/O footprint within POINT I/O assemblies. The module supports distributed I/O architectures when paired with a compatible POINT I/O communication adapter. Its 1-byte message size minimizes cyclic data requirements while maintaining deterministic output state transfer between the controller and field devices.
Frequently Asked Questions
Q: Does the 1734-OB4 include output status indication?
A: Yes. The module incorporates four yellow LEDs for individual output status monitoring and two green/red LEDs for module and network diagnostics.
Q: What wiring bases are supported by the module?
A: The documented compatible wiring base assemblies are 1734-TB and 1734-TBS.
Q: What is the backplane current requirement of the module?
A: The module draws 75 mA from the POINTBus backplane during operation.
Field Installation Guidelines
-
Mount the module on a properly secured DIN rail before applying field power.
-
Verify compatibility between the installed POINT I/O communication adapter and the module configuration.
-
Route output wiring separately from motor power conductors and variable frequency drive cables.
-
Confirm field devices are rated for 24 VDC sourcing output operation before connection.
-
Use the specified 1734-TB or 1734-TBS wiring base assembly for installation.
-
Inspect terminal tightness and grounding continuity during commissioning.
-
Observe cabinet spacing and ventilation requirements established for the overall POINT I/O assembly.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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