TU840 | ABB | Module Termination Unit

Description

TU840 is a termination unit for redundant I/O applications using TB840/TB840A with single power input.

Electrical Specifications

• Power input: 24 V DC (19.2 – 30 V)

• Power dissipation: 2.0 W

• Rated insulation voltage: 50 V

• Dielectric test voltage: 500 V AC

• ModuleBus current distribution: 5 V 1.5 A / 24 V 1.5 A

Redundancy and Communication

• Communication protocol: Modulebus

• Line redundancy: Supported

• Module redundancy: Supported

• Hot swap: Not supported

• Type: Redundant TB840/TB840A, Redundant I/O, Single Power

Mechanical and Mounting

• Mounting: Vertical or horizontal

• Mechanical keys: 36 combinations

Wiring and Connections

• Wire size (solid): 0.2 – 2.5 mm²

• Wire size (stranded): 0.2 – 2.5 mm² (24 – 12 AWG)

• Recommended torque: 0.5 Nm

• Connector: Not applicable

Physical Dimensions

• Width: 124 mm (4.88 in)

• Height: 186 mm (7.32 in, including latch)

• Depth: 47 mm (1.85 in)

• Weight: 0.45 kg (0.99 lbs)