Overview
The Allen-Bradley 1492-JD4C is a dual-level feed-through terminal block from Rockwell Automation’s Bulletin 1492 family of IEC terminal blocks. This model features integrated commoning bar functionality, allowing parallel connection between two levels without external jumpers. It is designed for secure screw-cage termination on standard 35 mm DIN rail and meets international electrical standards for industrial control and distribution panels.
Key Features
- Two-level, two-circuit block: Dual-level architecture with internal commoning bar simplifies circuit routing and reduces panel layout complexity.
- Screw cage termination: Standard slotted or Phillips-head screw connection accommodates round and stranded wire; no special tools required.
- DIN rail mount: 35 mm symmetrical DIN rail compatible; pre-drilled for quick rail installation on breakaway-mounting channels.
- Four connection points: Two inlet and two outlet terminals enable flexible feed-through or distribution configurations.
- UL, CSA, and CCC certified: Meets NEMA, IEC, and ATEX compliance for North American and international applications.
Technical Specifications
- Current rating: 35 A continuous
- Voltage rating (UR): 600 V AC/DC
- Voltage rating (CSA): 300 V AC/DC
- Voltage rating (IEC): 400 V AC/DC
- Cross-section: 4 mm² (26–10 AWG conductor size)
- Termination method: Screw cage (0.8 mm² to 4 mm² wire range)
- Connection type: Screw terminal feed-through with commoning bar
- Mounting: 35 mm DIN rail, symmetrical
- Material: Flame-retardant polyamide (gray standard color)
- Dimensions: 6.1 × 60.7 × 57 mm (0.24 × 2.39 × 2.24 inches)
- Operating temperature: −50 to +120 °C
- Standards: UL 1059, CSA 22.2 No. 158, IEC 60947-7-1, CCC, KC, ATEX
- Package quantity per unit: 1 block (sold as lot of 3)
Typical Applications
The 1492-JD4C is widely used in industrial control panels, switchgear, power distribution terminals, and PLC I/O enclosures where multiple signal or power circuits require secure, accessible termination. Common uses include:
- 24 VDC control signal distribution in automation systems
- Motor control circuit wiring and load switching
- Safety interlock and emergency stop circuits
- Sensor and transducer signal conditioning
- Power distribution and load sharing in panel-mounted enclosures
Compatibility & Replacements
The 1492-JD4C is part of the Bulletin 1492 family and is compatible with standard 35 mm DIN rail mounting systems. Optional accessories include end barriers (1492-EBJD4, gray), rail anchors (1492-EAJ35), and retaining clips. Similar single-level models in the series include the 1492-J4 (feed-through, no commoning) and 1492-JDF4. For single-pole, single-level requirements, consider the 1492-J4C variant. Consult Rockwell Automation documentation or contact your distributor for application-specific replacement options and panel integration guidance.
