Description
Technical Specifications
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Input Channels: 16 per panel
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Voltage Range: 24 VDC to 125 VDC (or 120/240 VAC, 50/60 Hz)
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Current Range: 1 mA – 100 mA
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Leakage Current: ≤ 3.3 mA max, 2.5 mA typical
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Isolation: 1500 VAC channel-to-ground
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Fuse Protection: 500 mA slow-blow fuse per channel with blown-fuse LED indicator
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Power Consumption: 110 W (panel + module)
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Response Time: < 1 ms
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Dimensions: 495 mm × 356 mm × 152 mm (19.5 × 14 × 6 in)
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Weight: 1.15 lb / 522 g (panel only)
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Operating Temperature: –40 °C to +70 °C
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Storage Temperature: –40 °C to +85 °C
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Humidity: 5 % – 95 % RH non-condensing
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Mounting: DIN-rail or panel mounting with screw-terminal blocks
Functional Features
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Triple Modular Redundancy (TMR) compatibility: supports 3503E/3505E 32-point DI modules; two panels required per module (labels 1–16 & 17–32 included)
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Commoned power terminals (PWR+ / PWR–) reduce wiring effort
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Hot-swappable design for online service without system shutdown
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Built-in blown-fuse LED for immediate fault location
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Conformal-coated PCB for harsh industrial environments
Applications
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Safety Instrumented Systems (SIS): ESD loops, fire & gas detection, burner management
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Process industries: oil & gas, petrochemical, refining, chemical plants
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Power generation: turbine auxiliaries, switchgear status monitoring
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Water & wastewater: pump control, valve feedback, level switches
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Manufacturing: packaging lines, conveyor interlocks, robot safety inputs
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