Allen-Bradley 1734-OB8S/B POINT Guard I/O Safety Digital Output Module
$123.00
$320.00
Description
Allen-Bradley 1734-OB8S/B POINT Guard I/O Safety Digital Output Module
The Allen-Bradley 1734-OB8S/B serves as the primary 1734-OB8S Safety Digital Output Module utilized to execute safety-rated sourcing output switching across CIP Safety and POINT Guard I/O platforms. The module provides eight sourcing outputs with integrated diagnostic monitoring, electronic short-circuit protection, and test pulse functionality for safety-related control circuits.
Suffix Breakdown & Model Matrix
| Parameter | Specification |
|---|---|
| Base Model | 1734-OB8S |
| Hardware Revision | /B |
| Product Family | POINT Guard I/O |
| Module Type | Safety Digital Output Module |
The supplied documentation identifies 1734-OB8S/B as a Series B hardware revision. No additional ordering suffix matrix is specified.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1734-OB8S/B |
| Brand | Allen-Bradley |
| Product Family | POINT Guard I/O |
| Module Type | Safety Digital Output Module |
| Outputs per Module | 8 |
| Output Type | Current sourcing |
| Maximum Output Current | 1 A per channel |
| Aggregate Module Current | 8 A |
| Aggregate Current per Terminal Base | 4 A at 40 deg C |
| Operating Voltage Range | 19.2 VDC to 28.8 VDC |
| Nominal Voltage | 24 VDC |
| Residual Voltage Drop | Less than 0.6 V |
| Leakage Current | 0.1 mA maximum |
| Short-Circuit Detection | High, low, and cross-circuit fault detection |
| Short-Circuit Protection | Electronic |
| Reaction Time | Less than 6.2 ms |
| POINTBus Current Consumption | 190 mA at 5 V |
| Isolation Voltage | 50 V continuous basic insulation |
| Power Consumption | 3.02 W |
| Thermal Dissipation | 10.32 BTU/hr |
| Operating Temp | -20 deg C to +55 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Enclosure Type | Open-style |
| Wiring Category | Category 2 signal ports |
CIP Safety Network and I/O Redundancy Characteristics
The 1734-OB8S/B operates within CIP Safety architectures using safety-related communication between POINT Guard I/O and GuardLogix controllers. The module supports dual-channel safety circuit implementation and incorporates diagnostic mechanisms for cross-circuit, low-side, and high-side fault detection. Its eight-output configuration increases safety I/O density while maintaining deterministic safety state execution through the distributed I/O infrastructure.
Frequently Asked Questions
Q: What diagnostic faults can the module detect?
A: The module supports detection of high-side short circuits, low-side short circuits, and cross-circuit wiring faults.
Q: What is the maximum reaction time of the safety outputs?
A: The specified reaction time is less than 6.2 ms.
Q: Which terminal bases are compatible with the 1734-OB8S/B?
A: Compatible terminal bases include 1734-TB, 1734-TBS, 1734-TOP, 1734-TOPS, 1734-TOP3, and 1734-TOP3S.
Field Installation Guidelines
-
Verify that the field supply voltage remains within the specified 19.2 VDC to 28.8 VDC operating range.
-
Install the module only within approved POINT Guard I/O assemblies and compatible terminal bases.
-
Route safety circuit wiring separately from non-safety control and power conductors.
-
Validate safety channel wiring and fault-monitoring functions during commissioning.
-
Maintain enclosure conditions within the specified operating temperature limits.
-
Confirm grounding continuity and shield termination practices according to the project safety design.
-
Perform controller and module configuration verification before placing safety outputs into service.
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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