ABB ITCTU11 Infi 90 Termination Unit 120V

ABB ITCTU11 Infi 90 Termination Unit – 24-Channel I/O Termination

The ABB ITCTU11 Infi 90 Termination Unit provides reliable I/O signal termination for Bailey Infi 90 systems. This unit terminates field wiring to process controllers. We design the ITCTU11 for use in ABB Bailey distributed control systems. It supports 24 channels for analog and digital signal termination.

Key technical specifications

• Product type: Termination unit for Infi 90 I/O signals.
• Channel count: 24 termination points.
• Signal voltage: 120 V ac maximum per channel.
• Current capacity: 2.0 A continuous per channel.
• Surge current: 5.0 A for 10 ms maximum.
• Resistance: <20 mΩ contact resistance per termination point.
• Dielectric strength: 1500 Vrms for 1 minute.
• Insulation resistance: >100 MΩ at 500 Vdc.

Physical dimensions & weight

• Depth: 108 mm (4.25 inches).
• Width: 38 mm (1.50 inches).
• Height: 218 mm (8.58 inches).
• Net weight: 0.35 kg (0.77 lbs).
• Mounting: DIN rail mountable (35 mm).
• Terminal type: Screw-type (28-12 AWG wire).

Environmental & operating ratings

• Operating temperature: -40°C to +70°C (-40°F to +158°F).
• Storage temperature: -55°C to +85°C (-67°F to +185°F).
• Humidity: 5% to 95% non-condensing.
• Altitude: Up to 2000 meters without derating.
• Protection class: IP20 (front face).
• Pollution degree: 2 (IEC 60664-1).

Installation & setup guidelines

• Mount the ABB ITCTU11 on standard 35 mm DIN rail.
• Connect field wiring to the screw-type terminal blocks.
• Use 28-12 AWG wire for reliable terminations.
• Torque terminals to 0.5 Nm maximum.
• Route signal cables away from high-voltage power cables.
• Label each termination point for easy identification.
• Test continuity after completing all terminations.

Package contents

• One ABB ITCTU11 Infi 90 Termination Unit.
• DIN rail mounting clips (pre-installed).
• Terminal screw connectors (24 positions).
• Identification label strip.
• Basic installation guide.

Shipping options

• We ship via FedEx, UPS, or DHL worldwide.
• Tracking and insurance included for every order.
• Express delivery typically arrives in 2-5 business days.

Frequently asked questions

• What systems use the ITCTU11?
  The ITCTU11 works with ABB Bailey Infi 90 distributed control systems.
• How many terminations does this unit support?
  We provide 24 termination points per unit.
• What is the maximum wire size?
  We accept 28-12 AWG stranded or solid copper wire.
• Can I mount this unit vertically?
  Yes, you can mount it vertically or horizontally on DIN rail.
• Is this unit compatible with 24 Vdc signals?
  Yes, it works for both ac and dc signals up to 120 V.
• Do I need special tools for installation?
  A standard flathead screwdriver (3.5 mm) is sufficient.