Overview
The Allen-Bradley 1492-J3-BL terminal block is a compact, single-pole IEC screw terminal block from the Bulletin 1492 family. Each unit measures 5.1 × 60 × 39.5 mm and is rated for 20A continuous current at 600V AC/DC. The black color variant provides clear wire identification in control panels, and the feed-through design allows wires to be landed on both top and bottom connections, optimizing panel space. Supplied as a box of 100 units, this is an ideal stock component for system integrators, panel builders, and maintenance teams working with industrial automation systems.
Key Features
- Single-pole feed-through design for optimized wiring density
- 20A rated, 600V AC/DC (UR standard); CSA and IEC certified
- Screw termination for secure, time-proven wire connections
- DIN rail mountable (35 mm standard rail compatible)
- Operating temperature range −50 °C to +120 °C
- Box of 100 units for convenient bulk stocking
Technical Specifications
- Current Rating: 20A (CSA standard)
- Voltage Rating: 600V AC/DC (UR); 800V AC/DC (IEC)
- Conductor Size: 24–12 AWG
- Wire Cross-Section: 2.5 mm²
- Connection Type: Screw termination
- Mounting: 35 mm DIN rail
- Dimensions: 5.1 × 60 × 39.5 mm (0.20 × 2.36 × 1.56 in)
- Weight: Included in box of 100 units
- Operating Temperature: −50 °C to +120 °C
- Certifications: CCC, CE, CSA, CUL, KC, MARINE, UL
- Color: Black
- Configuration: 1 Pole, Feed-Through
Typical Applications
The 1492-J3-BL terminal block is suited for:
- Industrial control panel wiring and distribution
- Programmable Logic Controller (PLC) I/O wiring
- Automation and machine control systems
- Motor control centers and power distribution units
- Signal conditioning and termination in test and measurement rigs
Compatibility & Replacements
Compatible With
- 35 mm standard DIN rail systems
- Allen-Bradley industrial control platforms and motor starters
- Any standard industrial control panel using IEC screw terminals
- Rockwell Automation CompactLogix, ControlLogix, and SLC 500 systems
- Third-party PLC systems (Siemens, Mitsubishi, Omron) with DIN rail mounting
Replaces / Drop-In Replacement For
- Allen-Bradley 1492-J3 (gray version) — identical electrical ratings and mechanical fit
- Other IEC 2.5 mm² terminal blocks meeting 600V AC/DC, 20A minimum specifications
Works With
- 1492-NBB3-1M Neutral Busbar (compatible mounting)
- 1492-M6X5 snap-in wire markers
- Standard DIN rail-mounted power distribution and control systems
- Allen-Bradley and third-party industrial automation software platforms












