Choose your region and language



Plug-in surge arrester POLIM-D..PI-2/-3

Plug-in arrester for IEC class distribution high (DH) for AC systems up to 52 kV

Surge arrester with metal-oxide (MO) resistors without spark gaps directly molded with silicone rubber, in a touch-proof metal clad, designed and tested according to IEC 60099-4.

The arrester is applicable for inner cone systems according to DIN EN 50181 and DIN 47637.

The arrester is available in cone sizes 2 and 3. It is used for secure protection of transformer and metal-clad switchgear against overvoltages from atmospheric discharges and switching conditions.


  • Transformers
  • Medium-voltage gas-insulated switchgear

Why Hitachi Energy?

  • Over 100 years of experience in overvoltage protection and more than 30 years with silicone insulation
  • Local and global Hitachi Energy application support
  • Proven safe short-circuit current design
  • Design life of more than 30 years
  • Own production of metal-oxide (MO) resistors
  • Excellent protection level with low residual voltage
  • Easy to install
  • Maintenance-free
  • Easy to track with monitoring system SAM 3.0

Brief performance data

Maximum system voltage (Us) kV 52 52
Continuous voltage through arrester (Uc) kVrms 4 – 42 24 – 42
Rated voltage of arrester (Ur) kVrms 5 – 52.5 30 – 52.5
Nominal discharge current (In) kApeak 10 10
Cone size   2 3


For more details see the data sheet in downloads below.

Something caught your eye?

Our sales team will get in touch with you