Description
ICS Triplex T8850C
Technical Specifications:
- Channel Configuration: 5 power groups, 8 channels per group
- Field Supply Voltage: Maximum 60 Vdc via T8290 power distribution module
- Power Dissipation: 0.5 W per power group
- Isolation Ratings:
- Power Group to Power Group: 50 V reinforced (continuous), tested at 1411 Vdc for 60 seconds
- Field Common: 50 V reinforced (continuous), tested at 1411 Vdc for 60 seconds
- Channel to Channel (within Power Group): 250 V basic (fault), tested at 2436 Vdc for 60 seconds
- Fusing: None (external protection required)
- Operating Temperature: 0°C to +60°C (+32°F to +140°F)
- Storage Temperature: -25°C to +70°C (-13°F to +158°F)
- Relative Humidity: 10% to 95% (non-condensing)
- Dimensions (HxWxD): 110 mm x 360 mm x 68 mm (4.33 in x 14.17 in x 2.67 in)
- Weight: 950 g (2.1 lb)
Functional Features:
- Grouped channel architecture with 5 independent power groups for zone isolation
- Reinforced insulation between power groups preventing fault propagation
- High-density termination for digital output modules
- Rugged industrial construction suitable for harsh environments
- Standard DIN rail mounting for flexible installation
- Clear channel identification and power group labeling
Application Scenarios:
- Digital output signal termination for emergency shutdown valves
- Solenoid valve control circuit interfaces in process plants
- Motor starter coil driving in safety systems
- Alarm horn and beacon actuation circuits
- Pump start/stop control signal distribution
- Heater and fan control output termination
Performance Parameters:
- Group Isolation: 50 V reinforced continuous between power groups
- Channel Isolation: 250 V basic fault rating within groups
- Voltage Withstand: 1411 Vdc test voltage for power group isolation
- Current Capacity: Suitable for industrial actuator loads
Material Composition:
- Housing: Industrial-grade aluminum or steel enclosure
- Terminal Blocks: High-current capacity screw terminals
- Insulation: Reinforced insulation materials per EN 60950-1
- PCB: Conformal coated for environmental protection
Structural Characteristics:
- Wide form factor accommodating 40 digital output channels in grouped arrangement
- Five distinct power group sections with physical separation
- High-visibility channel numbering across the assembly face
- Robust mounting clips for DIN rail retention
- Field power distribution bus for each group
Working Principle: The T8850C receives digital output commands from the Trusted TMR processor through the connected digital output module. Each power group operates as an electrically isolated zone, ensuring that a short circuit or fault in one group does not affect channels in other groups. The field supply voltage is distributed through the T8290 module to each power group, and output signals are routed to field devices through the termination points.
Installation Requirements:
- Mount on standard DIN rail in IP20 or better protected enclosures
- Connect field power through T8290 power distribution module
- Group field devices by power group to maintain isolation integrity
- Use conductors rated for maximum 60 Vdc operation
- Verify isolation requirements between power groups during design
Usage Precautions:
- Do not exceed 60 Vdc field supply voltage
- Maintain power group separation to preserve isolation barriers
- Verify load currents do not exceed group capacity
- Inspect terminal connections periodically for looseness
- Replace assembly if insulation damage is detected
