1.Product Overview
The Allen-Bradley 1794-1J2 Terminal Housing serves as a rugged interface enclosure for Rockwell Automation’s FLEX I/O™ 1794-TB3/B Series terminal bases. Designed to protect wiring connections in harsh industrial environments, this injection-molded thermoplastic housing achieves NEMA 4X/13 ratings (–20°C to +70°C) with UV resistance. Its screw-sealed cable entries (conduit not required) and clear flip-open cover enable quick visual inspections without disassembly. Supporting vertical/horizontal DIN rail mounting (EN 60715), the unit integrates anti-vibration locking tabs to prevent accidental dislodging. Compatible with all 1794-TB3/B terminal bases, it simplifies field wiring for distributed I/O systems while providing essential dust/chemical protection.
2.Critical Technical Specifications
Durability and compatibility metrics:
- Material: Polycarbonate-ABS blend (UL 94 V-0 flammability rating)
- Protection: IP66 dust/water jet, NEMA 4X corrosion/oil resistance
- Temperature Range: –20°C to +70°C (operational)
- Cable Capacity: Accepts Ø8–14mm cables through M20 gland holes
- Impact Resistance: IK08 (5J impact protection per IEC 62262)
- Mounting: Top-hat DIN rail (35mm) with tool-free snap lock
- Sealing Force: 0.6–1.2 N·m torque for cover seals
- EMI Shielding: Metal clip option for 1794-TBNF noise-prone environments
3.Targeted Applications
Harsh-environment wiring protection:
- Food & Beverage: Washdown zones for filler/capper I/O stations (FDA-compliant)
- Automotive: Robotic welding cell terminal protection against spatter/debris
- Chemical Processing: Acid-wash areas with airborne corrosives
- Material Handling: Conveyor junction boxes exposed to dust/oil mist
- Mining: Crushing plant I/O enclosures (MSHA 30 CFR Part 18)
- Water Treatment: Outdoor pump station termination boxes
- Packaging Machinery: Humidity control zones for label applicators
4.Competitive Advantages
Installation and maintenance innovations:
- Time Savings: 60% faster wiring access versus screw-sealed housings
- Vibration Tolerance: Patent-pending ShockLock™ rail tabs withstand 10g vibrations
- Corrosion Defense: Salt spray resistance exceeds 1,000 hours (ASTM B117)
- Wiring Clarity: Magnifying cover amplifies wire labels by 150%
- Safety Compliance: Transparent cover enables arc-flash inspections per NFPA 70E
- Space Efficiency: 30% slimmer profile than metal alternatives
- TCO Reduction: Eliminates $300+ per year conduit maintenance
5.Functional Capabilities
Advanced environmental protection:
- Dual-Purpose Design: Accepts standard or shielded cables via adaptable glands
- Tool-Less Entry: Spring-loaded cable glands clamp without torque tools
- Grounding Integrity: Integrated zinc-plated grounding bar (10–4 AWG)
- Thermal Management: Ventilation slots prevent condensation (>95% RH)
- Hazardous Area Compliance: Converts standard terminals to NEC 500 Class I Div 2
- Color Coding: Optional neon-yellow covers for safety circuit identification
- Modular Expansion: Stackable housings for multi-tier terminal bases
| Attribute | Specification |
| Product Series | FLEX I/O™ (Series A) |
| Component Type | Removable Terminal Base (RTB) |
| Compatible Modules | 8/16-point digital I/O modules (1794-IB16, -OB16P, -IV16, -OV16, etc.) |
| Wiring Points | 18-point screw terminal (supports 16 I/O + 2 power connections) |
| Terminal Type | Removable screw-clamp (captive screw design) |
| Wire Range | 12-22 AWG (0.5-2.5 mm²), copper only |
| Torque Specification | 0.5-0.6 N·m (4.5-5.3 lb-in) |
| Isolation Rating | 250V AC continuous (field-to-backplane) |
| Voltage Rating | 30V AC/DC operational (Category I) |
| Power Connections | Dedicated V+ and V- terminals for field power distribution |
| Daisy-Chaining | Supports field power jumper links between adjacent bases |
| Mechanical Keying | 3 key positions (prevents incorrect module insertion) |
| Status Indicators | None (passive base) |
| Material | UL94 V-0 polycarbonate (flame-retardant) |
| Operating Temperature | -20°C to 70°C (-4°F to 158°F) |
| Relative Humidity | 5-95% non-condensing |
| Shock/Vibration | IEC 60068-2-6: 5g @ 10-500Hz
IEC 60068-2-27: 25g (11ms half-sine) |
| Dimensions (H x W x D) | 87 mm x 35 mm x 80 mm (3.43 in x 1.38 in x 3.15 in) |
| Weight | 90 g (0.2 lb) |
| Certifications | UL Listed, CE, c-UL, RoHS |
| Installation | DIN rail mounting (35 mm) with locking tab |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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1794-IJ2 - 2-Channel Current Input - Industrial Automation Rugged Isolated Flex Module Images
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