Description
GE IC693MDR390
- Technical Specifications:
- Channels: 8 independent relay output channels
- Output Type: Mechanical relay (SPDT)
- AC Load Rating: 2A @ 120VAC (resistive), 1A @ 120VAC (inductive)
- DC Load Rating: 2A @ 24VDC (resistive)
- Coil Voltage: 24VDC
- Contact Configuration: NO, NC, COM per channel
- Switching Time: 10ms (typical)
- Mechanical Life: 10,000,000 operations
- Electrical Life: 100,000 operations at full load
- Isolation: 500V RMS
- Power Consumption: ~6W
- Operating Temperature: 0°C to 60°C
- Dimensions: Full-width IC693 module
- Functional Features:
- 8 SPDT relays rated for 120VAC — North American standard
- LED per channel for status indication
- Backplane-powered
- Snubber circuit across each contact
- Compatible with all 90-30 CPUs
- Application Scenarios:
- HVAC damper and valve control (120VAC actuators)
- 120VAC lighting circuits in commercial buildings
- Motor starter control (small AC motors)
- 120VAC solenoid valve control
- North American panel-mounted systems
- Performance Parameters:
- Contact Resistance: <100mΩ
- Dielectric Strength: 1500V RMS
- Coil Current: ~80mA per channel
- Bus: Genius Bus, 10Mbps
- MTBF: >150,000 hours
- Material Composition:
- Housing: UL94 V-0 polycarbonate
- PCB: 4-layer FR-4
- Relays: Sealed electromagnetic relays
- Terminals: Screw-type, 18-22 AWG
- Structural Features:
- Full-width IC693 module
- 8 red LEDs on front
- 24 screw terminals (8x NO/COM/NC)
- DIN-rail or chassis mount
- Working Principle:
- CPU writes output via Genius Bus. Relay coil energizes, contact switches. LED indicates state. Snubber protects against inductive spikes.
- Installation Requirements:
- IC693CHS or IC693ACC chassis
- Wire 120VAC loads to COM and NO
- Use 18-22 AWG wire rated for 120VAC
- Keep AC wiring separated from DC signal wiring
- Usage Precautions:
- Do not exceed 2A per channel at 120VAC
- Add external flyback diode for DC loads on same relay
- Verify load is 120VAC — do not connect 240VAC
- Do not hot-swap




