Overview
The Allen-Bradley 1492-HJ812 is a high-density, finger-safe terminal block from Rockwell Automation’s Bulletin 1492 family. Built for reliable wire termination in industrial control panels, this 12-pole, 25-ampere block provides secure screw-terminal connections with integral wire clamps for wire sizes #16 to #12 AWG. Rated for 600V AC/DC operation, it meets UL and CSA certification standards and is ideal for PLC systems, motor controls, and automation enclosures.
Key Features
- 12-Pole Configuration: Accommodates up to 12 independent circuits on a single panel-mount block
- Screw Terminals with Wire Clamps: Secure, vibration-resistant connections; no spring-clamp degradation over time
- Wire Range #16–#12 AWG: Accepts both fine and standard gauge industrial wiring
- High-Density Design: Compact footprint minimizes control panel real estate while maintaining code compliance
- UL/CSA Certified: Meets North American safety standards for industrial electrical systems
- White Color-Coded Housing: Standard finish for easy identification and organization in complex panel layouts
Technical Specifications
- Voltage Rating: 600V AC/DC
- Current Rating: 25 Amperes per pole
- Number of Poles: 12
- Terminal Type: Screw with integral wire clamp
- Wire Range: #16 to #12 AWG
- Mounting Type: Panel mount (surface-mounted on DIN rail or panel)
- Housing Material: High-impact thermoplastic, white
- Certifications: UL, CSA, CE, KC
- Series: Bulletin 1492-H (high-density finger-safe family)
Typical Applications
- PLC control cabinet wiring and termination
- Motor starter and contactor control circuits
- 24 VDC control signal distribution and input/output routing
- Power distribution and load switching in automation panels
- Industrial machinery enclosures and process control systems
- Retrofit and upgrade projects requiring standardized terminal blocks
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix, ControlLogix, and MicroLogix PLC systems
- Siemens S7 and Siemens KTP HMI integration (via third-party wiring hubs)
- IEC 60439-1 industrial control panel standards
- DIN-rail mounted enclosures and traditional surface-mount panel installations
- NEMA 4X, NEMA 12, and equivalent stainless-steel control cabinet assemblies
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 1492-HJ812 is the current Rockwell Automation catalog standard for 12-pole, 25A panel-mount screw-terminal applications; it supersedes earlier 1492-H variants with lower pole counts or different current ratings.
Works With
- Studio 5000 Logix Designer (PLC programming and wiring documentation)
- FactoryTalk View and other Rockwell Automation HMI environments for system visualization
- EtherCAT, EtherNet/IP, and traditional hardwired relay logic control schemes
- Third-party industrial automation platforms using standard IEC terminal block interfacing
