SAP4 II 20/400 TNS 660189 GENERAL ELECTRIC SurgeGuard Surge Arresters Plug-in. Class II Imax 20kA 4P TNS View larger
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SAP4 II 20/400 TNS 660189 GENERAL ELECTRIC SurgeGuard Surge Arresters Plug-in. Class II Imax 20kA 4P TNS

SAP4 II 20/400 TNS



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SurgeGuard - Surge Arresters Plug-in. Class II Imax=20kA 4P TNS

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* Brand new product in its original packaging covered by the warranties and certifications provided by GENERAL ELECTRIC

*This price is per unit and is the net value (not including taxes if applicable).

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  • Function:
    Protection of an electrical installation and all electrical and electronic devices connected t this installation against destructive overvoltage surges. Such voltage surges can be generated by lightning induced curents, by network-polluting devices (such as motors, frequency-converters, dimmers, etc.) and by power supplier network switching operations.
  • Applications:
    Surge arresters cover the protection of home appliances (TV, HiFi, VCR, laundry-machine, dishwasher,...), commercial building equipment (computer and data communication network, intrusion and fire alarm system, access-control and building automation system), but also industrial equipment (PLC, instrumentation, medical apparatus, montoring devices) and even the protection of entire off-shore drilling platforms
  • Features:
    • The line of surge arresters includes a full range of compact protectors for installation on DIN rail. The devices are especially designed to provide complete and effective protection against surges, protecting equipment and property connected to the low voltage network.
    • The range of surge arresters includes:
      - Class I limp = 100kA (monoblock)
      - Class I+II limp = 12.5kA and limp = 25kA (plug-in)
      - Class I+II limp = 7.5kA and limp = 15kA (monoblock) in 10/350ms waveform
      - Class II with different discharge capacities: 15kA, 20kA, 40kA in 8/20ms waveform
      - Class II for DC photovoltaic applications, communication and TV lines are also available.
      The most suitable value will be selected according to the type of installation, premises and equipments to be protected.
    • NEW plug-in ranges in Class I+II, Class II and for photovoltaic application in uni- and multipole format.
    • Several different formats one pole, single phase, two phase and three phases are available for all types of electrical net systems: TT, TN-S, TN-C, IT.
    • Additionally, dedicated versions for temporary overvoltage (TOV) are included in the offer.
      TOV is a voltage peak of hundreds of volts for an indeterminate period due to the unbalance of the network (normally caused by neutral fault).
    • The Tele OV devices follow the new European standard EN 50550.


FamilySurge arresters - SurgeGuard
Un (V)440 V
Imax (kA)20 kA
In (kA)10 kA
Up (L-N) (V)≤1,4 kV
Number of phases3+N
Number of modules4
Standard packing1
MountingPlug-in plug and base
Response time≤25ns
Thermal fuseYes
Thermal fuse healthy indicationmechanical flag
Nominal current Un400 Vac
Useable in networkTN-S
ScrewsPozidriv 3
StandardsBS 6651;DIN VDE 0675-6;IEC 61643-I;IEC 61643-II;NF C61-740
Energy impulse wave8/20µs
User temperature (°C)-40°C / +80°C
Terminal capacity max (mm²)35mm² stranded / 25mm² flexible
Terminal capacity min (mm²)10mm² solid / flexible


Weight0.423 kg


ETIM 5.0 EC000941
ETIM 6.0 EC000941

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