Description
Product Description
The IC694MDL231 is a precision-engineered 8-channel AC input module for the PACSystems RX3i platform, designed to handle high-voltage 240 VAC signals with individual channel isolation. Each input point has its own common terminal, allowing independent power sources and enhanced protection for complex industrial applications.
Key Features
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8 discrete AC inputs, each fully isolated for independent operation
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Positive logic configuration; ON state detected when voltage is present
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Reactive RC input circuitry for noise suppression and stable signal acquisition
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Green LED per channel for immediate status monitoring
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Hot-swappable in any standard RX3i I/O slot (excluding CPU/power supply slots)
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Red high-voltage warning bands for safety compliance
Electrical Specifications
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Rated Input Voltage: 240 VAC
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Voltage Range: 0–264 VAC
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Operating Frequency: 50/60 Hz
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ON-State Voltage: 148–264 VAC (guaranteed)
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OFF-State Voltage: 0–40 VAC (guaranteed)
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Typical Input Current: 15 mA per channel
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Minimum ON-State Current: 6 mA
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Maximum OFF-State Current: 2.2 mA
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Response Time: ≤ 30 ms ON / ≤ 45 ms OFF
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Isolation: 250 VAC continuous (field-to-backplane and channel-to-channel), 1500 VAC for 60 seconds (field to frame)
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Input Circuit: Reactive RC filtering
Mechanical and Environmental
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Dimensions: 34 × 145 × 140 mm
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Weight: 0.82 lbs
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Operating Temperature: 0–60°C
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Mounting: Standard RX3i rack
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Certifications: UL 508, CSA, Class I Div 2 (Groups A–D)
Power Requirements
Applications
The IC694MDL231 is suitable for interfacing with 240 VAC field devices such as pushbuttons, limit switches, relays, and contactors. Ideal for process automation, factory control systems, and distributed monitoring applications where independent channel isolation is critical.
FAQ
Q: Can this module be used with lower-voltage AC signals?
A: No, it is designed specifically for 240 VAC operation.
Q: Is hot-swapping supported?
A: Yes, hot insertion and removal are supported on RX3i universal backplanes.
Q: How is channel isolation implemented?
A: Each input has its own isolated common terminal, with 250 VAC continuous isolation and 1500 VAC temporary field-to-frame isolation.