1492JD3DF

Overview of Allen Bradley 1492-JD3DF

The Allen Bradley 1492-JD3DF is a two-level screw connection terminal block designed for industrial control panels and automation systems. It features a compact form factor, measuring 5.1 x 69 x 55.5 mm, making it ideal for applications requiring high-density wiring without sacrificing accessibility or performance. This model integrates a diode in forward bias between its two levels, providing built-in circuit protection and allowing for effective current steering and isolation between circuits. The 1492-JD3DF supports a range of wire sizes and offers secure terminations for wires rated from 22 to 12 AWG under UL standards, and 26 to 12 AWG under CSA. Its black housing and durable construction ensure long-lasting reliability, while compliance with global certifications like UL, CSA, and IEC makes it suitable for use worldwide. The block's efficient layout and the inclusion of a diode make it particularly suited for complex industrial automation needs, simplifying panel design and maintenance.

Key Features of Allen Bradley 1492-JD3DF

• Two-level feed-through block with integrated forward-bias diode between levels
• Screw connection design for secure, reliable wiring
• Handles wire sizes from 22 to 12 AWG (UL), 26 to 12 AWG (CSA), and up to 2.5mm² (IEC)
• Voltage ratings: 600V AC/DC (UR), 300V AC/DC (CSA), 400V AC/DC (IEC)
• Maximum current: 20A for the busbar, 1A for incorporated diode
• Compact dimensions: 5.1 x 69 x 55.5 mm
• Meets UL, CSA, and IEC certification requirements
• Standard color: black

Technical Specs of 1492-JD3DF

• Type: Two-Level Feed-Through Terminal Block with Diode
• Terminal size: 5.1 x 69 x 55.5 mm (0.20 x 2.72 x 2.19 in)
• Wire range:
  • UL: 22–12 AWG
  • CSA: 26–12 AWG
  • IEC: up to 2.5 mm²
• Voltage Ratings:
  • UR: 600V AC/DC
  • CSA: 300V AC/DC
  • IEC: 400V AC/DC
• Current Ratings:
  • Busbar: up to 20A
  • Diode: 1A (Reverse Voltage: 1000V)
• Connection: Screw clamp
• Housing color: Black
• Certifications: UL, CSA, IEC

Applications / Use Case

The Allen Bradley 1492-JD3DF is widely used in automation projects, particularly those requiring both compactness and additional circuit protection or control. It is ideal for applications where circuit separation and current steering are important, such as interfacing outputs of control relays with indicator lamps or PLC inputs. The built-in diode enables forward-bias current flow, making it suitable for use in relay driver circuits, lamp test circuits, and logic isolation scenarios found in industrial control panels. Its two-level design supports high wiring density without complicated layouts, allowing engineers to design and maintain panels more efficiently. The combination of global certifications and reliable construction ensures its suitability for a diverse range of industrial environments, including manufacturing, material handling, process control, and utilities. The 1492-JD3DF helps reduce wiring errors and provides reliable performance in even the most demanding automation infrastructures.

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