News 17 October 2018
WAGO Field-Side Power Supply Filters and Power Supply Filters with Integrated Ground Diagnostics for Equipment and Systems with Insulation Monitoring

Until now, reliably powering a fieldbus node was the sole function for both WAGO's field-side power supply filters and power supply filters. However, two new variants now offer integrated ground diagnostics as well. And these models go beyond merely protecting the system against high-energy disturbances on DC supply lines, such as those caused by switching overvoltages or inductive loads, and the field supply against transient overvoltages.

The new filters are designed as I/O modules for the WAGO-I/O-SYSTEM 750, have been optimized for use in systems with insulation monitoring and allow the detection of asymmetrical ground faults in an infeed segment of the 24 VDC field supply. The ground diagnostics are primarily designed for system commissioning or maintenance and must be activated in advance by the user.

The WAGO I/O-SYSTEM 750 is also approved for installation in shipbuilding applications and onshore/offshore installations (e.g., platforms or loading facilities). This is demonstrated through compliance with the requirements of leading classification agencies such as DNV GL and Lloyd’s Register. Use of these modules is required for correct, certified operation.

However, a 750-626/020-002 Power Supply Filter is required for marine-certified operation of the WAGO-I/O-SYSTEM 750. And as soon as an additional 24 VDC field supply is needed in a fieldbus node, the WAGO 750-624/020-002 Field-Side Power Supply Filter also becomes necessary.

WAGO Field-Side Power Supply Filters: Show product list

WAGO Power Supply Filters: Show product list

At a Glance

  • Increased system availability:
    Optimized for systems with insulation monitoring

  • Detect and locate ground faults more quickly and easily: Ground fault diagnostics for 24 V and 0 V field power supplies and detection of unbalanced ground faults in an infeed segment

  • Compatible with the WAGO-I/O-SYSTEM 750: An inexpensive, effective and smart solution