1756-OBV8S

Overview

• Product type designation: Safety Bipolar/Sourcing Output Module
• Model: 1756-OBV8S
• Description: 8-point safety output module with bipolar/sourcing capability for GuardLogix safety applications

Output Specifications

• Number of outputs: 8
• Field supply voltage: 18...32V DC, 8.1 A (SELV/PELV)
• Output voltage: 18...32V DC, 1 A per point (SELV/PELV, 150VA)
• Pilot duty rating: 2.4 A inrush

Backplane Current Draw

• @ 5.1V DC: 280 mA
• @ 5.1V DC (alternative rating): 400 mA

DeviceNet Power

• DeviceNet power: 60 mA @ 11...2V DC (CL 2/SELV limited to 100VA)

Operating Temperature

• Operating temperature: 0 °C ≤ Ta ≤ 60 °C (32 °F ≤ Ta ≤ 140 °F)
• Surrounding air temperature, max: 60 °C (140 °F)

Isolation

• Isolation voltage: 60V continuous (basic insulation type, channels-to-backplane)
• No isolation between DC power and channels
• No isolation between individual ports

Physical Specifications

• Enclosure type rating: None (open-style)

Wiring Specifications

• 1756-TBNHS:
  • Single wire: 0.33…2.1 mm² (22…14 AWG) solid or stranded shielded copper wire, 105 °C or greater, 1.2 mm insulation max
  • Double wire: 0.33…1.3 mm² (22…16 AWG) solid or stranded copper wire, 105 °C or greater, 1.2 mm insulation max (same wire sizes only, no intermixing solid/stranded)
• 1756-TBSHS:
  • Single wire: 0.33…2.1 mm² (22…14 AWG) solid or stranded shielded copper wire, 105 °C or greater, 1.2 mm insulation max
• Terminal block torque (1756-TBNHS): 1.36 N•m (12 lb·in)

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