Product Overview
The Honeywell 900H01-0202 is a robust 8-channel relay output module designed for industrial automation systems. It provides eight individually isolated electromechanical relay outputs, with four Form C and four Form A contacts. The 900H01-0202 includes green LED status indicators per channel and blinking status LEDs for module scan and diagnostics.
Technical Specifications
Based on manufacturer data for the Honeywell 900H01-0202, the key parameters are:
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Output Channels: 4 Form A, 4 Form C
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Output Device: Electromechanical relay
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Voltage Rating: 120/240VAC, 30 VDC
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Current Rating: 4A @ 240VAC or 30VDC resistive load; 0.5A @ 240VAC or 30VDC incandescent lamp load
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Galvanic Isolation: Relay output contact to relay output contact; relay output contact to logic
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Max Leakage Current: 1 mA @ 350 VDC
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Response Times: OFF to ON 11 ms max; ON to OFF 8 ms max (excluding scan and transmission times)
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Expected Life: Mechanical: 5 x 10E7 operations at 180 cpm; Electrical: 10E5 operations
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Fail Safe State Configuration: Yes, with Hold Last State and Failsafe State options
Industry Applications
The Honeywell 900H01-0202 is ideal for controlling solenoid valves, motor starters, and alarm systems in process control, manufacturing, and material handling. Its isolated relay outputs minimize noise interference. For high-cycle applications, the mechanical life of 5 x 10E7 operations ensures longevity.
Installation Guide
When installing the Honeywell 900H01-0202, ensure the module is securely seated in the backplane. Each output is not fused internally; install an appropriate external fuse for each output based on load and wire gauge. Observe polarity for DC loads. The green LED on each channel confirms output status. Use the blinking module LED to verify scan activity.
Maintenance and Reliability
The electromechanical relays in the Honeywell 900H01-0202 require periodic inspection for contact wear, particularly in high-current or inductive load applications. Monitor the electrical life rating of 10E5 operations. Keep the module free of dust and moisture. The fail-safe configuration (Hold Last State or Failsafe State) helps maintain system safety during faults.
Selection Guide
Before purchasing the Honeywell 900H01-0202, verify voltage and current ratings match your loads. For inductive loads, add snubbers. The module requires a compatible backplane. For genuine Honeywell spares, trust UBEST Automation. Visit ubest101.myshopify.com for more industrial automation parts.