4 Product description
Maschinenfabrik Reinhausen GmbH 2020 373587317/21 EN TAPCON
®
The UI 3 assembly is used for measuring 3-phase voltage and current.
Figure17: UI 3 assembly
Warning of a danger point. Read the information given in the product oper-
ating instructions.
Warning of dangerous electrical voltage.
This assembly is protected via double insulation or reinforced insulation.
Table9: Safety-relevant symbols on the assembly
4.6.5.4 Digital inputs and outputs
The assemblies DIO28-15 and DIO42-20(HL) provide you with a number
of digital inputs and outputs that differs based on the version:
▪ DIO28-15: 28 inputs, 15 outputs (6 N/O contacts, 9 change-over con-
tacts)
▪ DIO42-20 (HL): 42 inputs, 20 outputs (8 N/O contacts, 12 change-over
contacts)