Overview
The Allen-Bradley 1734-IB8SK is a POINT Guard I/O safety input module engineered for safety-critical applications in industrial automation. This 8-point conformal coated safety input module delivers proven reliability in harsh manufacturing and process control environments where moisture, dust, and corrosive elements are present.
Key Features
- Eight (8) safety discrete input channels with sinking configuration
- Conformal coating for enhanced protection in harsh industrial environments
- SIL 3 / Category 4 safety-rated design compliant with IEC 61131-2
- Input response time less than 16.2 ms (Type 3 per IEC 61131-2)
- Compatible with GuardLogix, Compact GuardLogix, and SmartGuard safety controllers
- DIN rail mount with integrated terminal base support
Technical Specifications
- Input Voltage Supply: 11–30 VDC
- On-State Input Voltage: Minimum 11 VDC (typical 24 VDC)
- Off-State Input Voltage: Maximum 5 VDC
- On-State Current: Minimum 3.3 A
- Off-State Current: Maximum 1.3 A
- Input Channels: 8 points, sinking type
- Input Type: Type 3 (IEC 61131-2)
- Reaction Time: < 16.2 ms
- Safety Rating: SIL 3 / Category 4 (IEC 61508 / EN 954-1)
- Mounting: DIN rail
- Environmental Protection: Conformal coated (sealed design)
Typical Applications
The 1734-IB8SK is used in safety-instrumented systems requiring high integrity signal input processing. Common applications include:
- Safety door interlocks and emergency stop circuits
- Machine guarding and presence sensing systems
- Process control safety layers in chemical and pharmaceutical production
- Oil, gas, and refining facility safety instrumentation
- Packaging and material handling safety networks
- Any application requiring SIL 3 or Category 4 input safety compliance
Compatibility & Replacements
Compatible With
- GuardLogix safety controller systems
- Compact GuardLogix safety controllers
- SmartGuard distributed safety systems
- POINT I/O backplanes and terminal bases (8-termination configurations)
- Allen-Bradley safety software and engineering tools
Replaces / Drop-In Replacement For
The 1734-IB8SK is the conformal coated safety variant of the POINT I/O family. Verify compatibility with your system integrator before ordering to ensure proper certification and functional requirements.
Works With
- Rockwell Automation Studio 5000 environment (FactoryTalk Design Suite)
- GuardLogix safety controllers and integrated safety ecosystems
- EtherNet/IP for networked distributed safety architecture
- IEC 61131-3 safety programming standards
