ISOMETER® IR427 with MK7

  • Insulation monitoring device for medical IT systems
  • Load and temperature monitoring for IT system transformers
  • According to IEC 60364-7-710 and IEC 61557-8
  • Two separately configurable response values
  • Multi-functional LC display

The ISOMETER® of the IR427 series is designed to monitor the insulation resistance of AC circuits (medical IT systems). At the same time, the load current and temperature of the IT system transformer can be monitored.

Questions? Contact us!

ISOMETER® IR427
ISOMETER® IR427
  • Insulation monitoring device for medical IT systems
  • Load and temperature monitoring for IT system transformers
  • According to IEC 60364-7-710 and IEC 61557-8
  • Two separately configurable response values
  • Multi-functional LC display

The ISOMETER® of the IR427 series is designed to monitor the insulation resistance of AC circuits (medical IT systems). At the same time, the load current and temperature of the IT system transformer can be monitored.

Questions? Contact us!

Features

ISOMETER® IR427

  • Insulation monitoring for medical IT systems
  • Load and temperature monitoring for IT system transformers
  • Adjustable response value for R
  • Adjustable load current response value
  • Integrated voltage monitoring for four alarm and test combinations MK7
  • Temperature monitoring via PTC Thermistor or Bimetal switch (NC)
  • Connection monitoring earth
  • LEDs: Power On, Alarm 1, Alarm 2
  • Internal/external test button
  • Programmable alarm relay: N/O or N/C operation
  • Self monitoring with automatic alarm message
  • Compact two-module enclosure (36 mm)
  • Four-wire interface for four alarm and test combinations MK7

Remote alarm indicator and test combination MK7

  • Easy-to-clean front foil surface
  • Label field
  • Panel frame alpine white
  • Alarm LEDs: Power On, insulation fault overload, overtemperature
  • Test button
  • Mute button
  • Standard flush-mounting enclosure 66 mm

Applications

  • Medical IT systems in accordance with IEC 60364-7-710:2002-11, IEC 61557-8 and DIN VDE 0100-710

ISOMETER® IR427 with MK7 Variant(s)

TypeSupply voltage USArt. No.**
IR427-2AC 70…264 V, 42…460 Hz*B72075300
B92075300
MK7DC 18…28 VB95100201

* Absolute values
**(B7… = push-wire terminal / B9… = screw-type terminal)

Optional Accessories for ISOMETER® IR427 with MK7

TypeArt. No.
STW2 measuring current transformerB942709
ES0107/temperature sensor (PTC)B924186
Mounting frame XM420B990994
MK-Cavity-wall-box-60mmB95100203

Downloads for ISOMETER® IR427 with MK7

NameCategorySizeLanguageTimestampD-/B-Number
UKCA - IR42x Declarations of Conformity 140.6 KB 2022/12/2020.12.2022
RoHS/REACH Report - B72075300 RoHS/REACH Report 261.5 KB 2024/09/0606.09.2024
IR42x CE Declarations of conformity 94.2 KB 2022/08/1212.08.2022
MK7 CE Declarations of conformity 82.7 KB 2022/08/1212.08.2022
IR427 + MK7 Manuals 2.4 MB DE2024/07/1010.07.2024D00118
IR427 + MK7 Manuals 2.4 MB EN2024/07/1010.07.2024D00118
IR427 + MK7 Manuals 1.9 MB ES2019/05/1313.05.2019D00118
IR427 + MK7 Manuals 1.1 MB FR2019/05/1313.05.2019D00118
IR427 + MK7 Datasheets 667.8 KB EN2024/07/3030.07.2024D00118
IR427 + MK7 Datasheets 668.1 KB DE2024/07/3030.07.2024D00118
IR427 + MK7 Datasheets 668.1 KB ES2024/07/3030.07.2024D00118
IR427 + MK7 Datasheets 679.8 KB ZH2019/05/1313.05.2019D00118