Technical Specifications of 1756-OX8I Module

Output Configuration The 1756-OX8I module features 8 Normally Open (N.O.) and 8 Normally Closed (N.C.) individually isolated outputs, grouped into two points per group. This configuration provides versatility in control applications.

Pilot Duty and Operating Voltage The pilot duty ratings are C300/R150. The operating voltage range spans from 5 to 125V DC and 10 to 240V AC, accommodating a variety of power sources.

Output Configuration

• 8 Normally Open (N.O.)
• 8 Normally Closed (N.C.)
• Individually isolated, two points per group

Pilot Duty and Operating Voltage

• Pilot duty: C300/R150
• Operating voltage range: 5…125V DC, 10…240V AC

Contact Current Rating

• 1 A @ 5…30V DC
• 0.5 A @ 48V DC
• 0.22 A @ 125V DC
• 1.5 A @ 120V AC 50/60 Hz
• 0.75 A @ 240V AC 50/60 Hz

Output Delay Time

• Off to On: 13 ms max
• On to Off: 13 ms max

Current Draw and Power Consumption

• Current draw @ 5.1V: 100 mA
• Current draw @ 24V: 100 mA
• Total backplane power: 2.9 W

Contact Life Expectancy

• Resistive loads: 300,000 cycles
• Inductive loads: 100,000 cycles

Synchronization and Fault Modes

• Synchronization: Within 16.7 ms max
• Fault mode: Hold last state, On, or Off (default Off)
• Program mode: Hold last state, On, or Off (default Off)

Isolation and Module Keying

• Isolation voltage: 250V (continuous)
• Module keying: Electronic, software configurable

Fusing and Terminal Blocks

• Not protected by fusing; fused IFM recommended
• Removable terminal blocks: 1756-TBCH, 1756-TBS6H
• RTB keying: User-defined mechanical

Physical and Environmental Specifications

• Slot width: 1
• Wire category: 1
• Enclosure type: None (open-style)
• Temperature code: T4A
• Humidity: 5…95% noncondensing
• Vibration: 2 g @ 10…500 Hz
• Shock (operating): 30 g
• Shock (nonoperating): 50 g

Immunity and Emissions

• Emissions: IEC 61000-6-4
• ESD immunity: 6 kV contact, 8 kV air discharges
• EFT/B immunity: ±4 kV at 5 kHz
• Surge immunity: ±1 kV line-line, ±2 kV line-earth
• RF immunity: 10V rms @ 150 kHz…80 MHz
• Oscillatory surge: 3 kV

Power and Thermal Dissipation

• Power dissipation: 3.1 W max @ 60 °C
• Thermal dissipation: 10.57 BTU/hr

Electrical Characteristics

• Off-state leakage: 0 mA
• Minimum load: 10 mA per point
• Contact resistance: 100 mΩ @ 6V 1 A
• Switching frequency: 1 operation/3 s
• Bounce time: 1.2 ms