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Schurter is expanding its FMER SOL DC filter range with a series for applications using three-phase AC. The FMCC SOL filters are said to be suitable for increasingly powerful inverters that require filters on both the AC and DC sides, such as those found in photovoltaics, wind energy systems and industrial applications such as quick-charge stations for electric cars.

The devices are designed for rated currents from 150A to 2,500A at an ambient temperature of 50°C. They have a voltage rating of 520V or 760V.

Modern inverters with maximum power-point trackers generate interference in both directions: on the AC grid side and on the DC panel side. On the DC side, a filter in the FMER SOL series can be used for currents from 25A to 2,300A. These are enhanced on the AC side with the FMCC SOL high-current series.

Filtering on both sides of the connection lines helps to meet common EMC standards.

Key features and specifications

  • The series has a compact, lightweight design
  • It provides UL approvals for ambient temperatures of 50°C as well as 40°C with higher-rated current
  • Approval for voltage ratings of 520VAC and 760VAC is provided, as is cURus approval E72928
  • High-voltage rating of 760VAC allows use in IT power grids
  • FMC SOL up to 250A is equipped as standard with M10 screw connections and starting at 320A with copper bars
  • Other connection types (stranded wire or copper bars for current levels of less than 320A) are available on request
  • Customer modifications to the switching or the housing are possible on request
  • Schurter offers an EMC measurement service for optimal matching to the inverter

SCHURTER continues to be a progressive innovator and manufacturer of electronic and electrical components worldwide. Our products ensure safe and clean supply of power, while making equipment easy to use. We offer a broad range of standard products including circuit protection, connectors, switches, EMC products and input systems, as well as electronic manufacturing services. Moreover, SCHURTER is ready to work with our customers to meet their application-specific requirements not covered in our standard range. You can rely on SCHURTER’s global network of companies and partners to guarantee a high level of local service and product delivery.


  • Circuit protection: fuse-Links, fuseholders, varistors, circuit breakers for equipment, voltage selectors
  • Connectors: IEC appliance couplers, appliance inlets, connectors, appliance outlets, plugs, power supply cords, interconnection cords
  • Switches: metal line switches, print-mount and front-panel switches, public transport switches, indicators
  • EMC products: one- and three-phase line filter with and without IEC appliance inlets, sine filters, chokes and pulse transformers
  • Input systems: metal and membrane keypads, touch screens, touch panels, cabinet and housing systems


  • Electronic manufacturing services for the electronic industry
  • Development of customer-specific products
  • Support of pre-compliance measurement for EMC topics

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