Allen-Bradley 1769-IM12/A CompactLogix 12-Point 240V AC Input Module

🔌 Allen-Bradley 1769-IM12/A: High-Density AC Input Solution for CompactLogix Systems

The Allen-Bradley 1769-IM12/A delivers robust 240V AC input capability in a compact form factor, engineered specifically for demanding industrial automation environments. This 12-point input module seamlessly integrates into CompactLogix 1769 I/O platforms, providing reliable signal acquisition from high-voltage AC sensors, limit switches, and control devices.

⚙️ Technical Specifications

• Input Points: 12 discrete AC inputs
• Voltage Rating: 240V AC (170-265V AC operating range)
• Input Current: 7 mA typical @ 240V AC
• Frequency Range: 47-63 Hz
• On-State Voltage: Min. 170V AC
• Off-State Voltage: Max. 40V AC
• Input Impedance: 34kΩ typical
• Response Time: On-delay 25ms max, Off-delay 35ms max
• Isolation: 2500V AC optical isolation (field-to-logic)
• Power Consumption: 150 mA @ 5V DC from backplane
• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Certifications: UL, cUL, CE, C-Tick compliant

🏭 Application Scenarios

Power Generation & Distribution: Monitor circuit breaker status, transformer tap positions, and switchgear interlocks in substations where 240V AC control circuits are standard.

Water & Wastewater Treatment: Interface with high-voltage pump motor starters, valve position indicators, and level switches in municipal treatment facilities requiring rugged, isolated inputs.

Manufacturing Automation: Capture signals from legacy 240V AC proximity sensors, photoelectric eyes, and safety interlocks in retrofit projects upgrading to CompactLogix control architecture.

HVAC & Building Systems: Integrate with commercial-grade damper actuators, fan status contacts, and thermostat outputs in large-scale climate control installations.

💡 Solution Advantages

Space-Efficient Design: High-density 12-point configuration reduces panel footprint by 40% compared to 8-point alternatives, lowering installation costs and cabinet real estate requirements.

Enhanced Diagnostics: Built-in LED indicators per channel plus RSLogix 5000 integration enable rapid troubleshooting, minimizing downtime during commissioning and maintenance cycles.

Flexible Wiring Options: Removable terminal blocks (RTB) support quick module replacement without rewiring—critical for scheduled maintenance windows in 24/7 operations.

Proven Reliability: Conformal-coated circuitry and industrial-grade components ensure consistent performance in harsh environments with temperature extremes, vibration, and electrical noise.

🔧 System Integration

The 1769-IM12/A mounts directly onto CompactLogix 1769 backplanes alongside processors (L1x, L2x, L3x series), communication adapters, and other I/O modules. Configuration via RSLogix 5000/Studio 5000 software allows custom input filtering, alarm setpoints, and data mapping to controller tags. Compatible with distributed I/O over EtherNet/IP or DeviceNet networks when paired with appropriate communication modules.

📦 Package Contents

• 1 × 1769-IM12/A Input Module
• 1 × Removable Terminal Block (RTB12)
• 1 × Installation Instructions
• 1 × Wiring Label Sheet

Backed by Allen-Bradley's global support network and designed for seamless integration into Rockwell Automation ecosystems, the 1769-IM12/A represents a field-proven choice for engineers demanding precision, durability, and long-term availability.