Innovative technologies for safe handling of electrical power to achieve high availability

We offer you first-class quality and safety combined with global service and every support in resolving your monitoring problems.

  • Electrical safety for unearthed power supplies (IT systems)
  • Insulation monitoring equipment, insulation fault location systems
  • Power supplies for medical applications
  • Measuring and monitoring relays
  • Electrical safety for earthed power supplies (TN systems)
  • Using renewable energies efficiently: wind power, photovoltaics
  • Test systems for electrical equipment and medical technology


  • Display of measuring values from insulation monitoring devices
  • Version S for increased shock and vibration resistance
  • Input current 0…400 µA (7204/9604) / 0…20 mA (7220/9620)

The analogue measuring instruments of the 96…/72… series are designed for indication of measured values from Bender devices equipped with the appropriate current output.


  • Dimensions: 72 x 72 mm (7204/7220) or 96 x 96 mm (9604/9620)
  • Version S for increased shock and vibration resistance
  • Scale background: white, imprint: black

Downloads for 7204/7220/9604/9620

Datasheets Messinstrumente 7204/7220/9604/9620 279.9 KB DE13.05.2019 10:31:34
Datasheets Measuring instruments 7204/7220/9604/9620 215.9 KB EN13.05.2019 10:31:36
Datasheets Instrumentos de medida 9604/7204/7220/9620 209.4 KB ES13.05.2019 10:31:37D00092

7204/7220/9604/9620 Variants

TypeInput currentDimensionsApplicable ISOMETER®Art. No.
7204-14210…400 µA72 x 72 mmiso685 seriesB986763
9604-14210…400 µA96 x 96 mmiso685 seriesB986764
7204S-14210…400 µA72 x 72 mmiso685 seriesB986804
9604S-14210…400 µA96 x 96 mmiso685 seriesB986784
9620-14210…20 mA96 x 96 mmiso685 seriesB986841
9620S-14210…20 mA96 x 96 mmiso685 seriesB986842
9604-16210…400 µA96 x 96 mmiso685 seriesB986782
7220-14210…20 mA72 x 72 mmiso685 seriesB986844
7220S-14210…20 mA72 x 72 mmiso685 seriesB986848