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Lightning Arresters

A lightning arrester is a device that protects electrical facilities such as power plants and power transmission lines from abnormal voltage and lightning. When an abnormal voltage load is applied, such as a strong lightning shock or a switching surge that occurs when the circuit breaker opens and closes, the surge arrester starts discharging and discharges abnormal charges to the ground. Since lightning strikes cause overvoltage and overcurrent in response to an impact, the presence of a lightning arrester can avoid adverse effects on electrical equipment. Lightning arresters include gap arresters and gapless arresters.
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  1. Sunflex kit
    Sankosha Sunflex kit
    from S$979.90
    Min. 9 days
  2. Lightning guard insulation type for LAN
    Nisshin Electric Lightning guard insulation type for LAN
    Insulated lightning guard. Equipped with a highly reliable isolation transformer (pulse transformer). It is compact, can be installed anywhere, does not require grounding, and is easy to install. Protects information and communication equipment from abnormal voltages such as lightning surges from... Read More
    Dimensions, Width W x Height H x Depth D (mm)  24×22×51  Suitable for  (Line) 1000BASE-T, 100BASE-TX, 10BASE-T  Mass (g)  20 
    Rating:
    90%
    from S$64.99
    Min. 2 days
  3. For thunder protector LAN
    OTOWA ELECTRIC For thunder protector LAN
    Protects network cameras and PCs connected to LAN lines. Compatible with shielded cables. There are two mounting methods, DIN rail mounting and screw mounting.
    Maximum Load Current (mA)  1000  Impulse resistance  (8/20μs)5kA、(10/350μs)2kA  Operating humidity (% RH)  90 or less (no condensation)  Operating Temperature (℃)  -20~+70  Applicable Voltage (V)  DC60 (maximum continuous)  Voltage protection level (V)  500 or less  Shape  Modular / RJ-45 (8 cores)  Trusco Part No.  449-0118 
    Rating:
    80%
    from S$199.90
    Min. 2 days
  4. SPD for LAN
    Sankosha SPD for LAN
    Rating:
    60%
    from S$329.90
    Min. 2 days
  5. Lightning arrester for board
    Panasonic Lightning arrester for board
    Protects electrical equipment from lightning surges that enter from the power supply side and ground side. Compact storage with a safety breaker module. The LED is lit when it is normal. If the KED is off, replace it.
    Starting Voltage (V)  (Between lines) 390, (between earth) 600  Insulation Resistance (MΩ)  100 or more (500V) 
    Rating:
    100%
    from S$77.99
    Min. 2 days
  6. SPD for distribution board
    OTOWA ELECTRIC SPD for distribution board
    Easy to install in the panel and with a safe function even when deteriorated. Built-in automatic disconnection device. With SPD function display. Corresponds to deteriorated contact output (S type only). Excellent responsiveness and non-continuous flow. There are 3 patterns for installation. Prot... Read More
    Rating:
    100%
    from S$199.90
    Min. 2 days
  7. SP diode
    Sankosha SP diode
    Since it is a bipolar element, it can be incorporated into a circuit regardless of its polarity. It responds at high speed in nanoseconds (1 / 1,000,000,000 seconds) or less to an abnormal voltage with a fast rising speed. It has improved surge resistance and low leakage current, so it can be app... Read More
    Acceptable power (W)  (10/1000μs)1500  Allowable Current (A)  (10/1000μs)68  Capacitance  (100kHz) 2500pF or less  Limit voltage (V)  (lpp)22.5  Specification  Standoff voltage 12.5V 
    Rating:
    75%
    from S$3.99
    Min. 2 days
  8. Coaxial protector
    Sankosha Coaxial protector
    from S$129.90
    Min. 2 days
  9. Home arrester
    OTOWA ELECTRIC Home arrester
    Same dimensions as the safety breaker. Can be attached to the distribution board in the empty space of one safety breaker. Easy installation work. Space can be saved by protecting the line-to-ground and ground-to-ground of a single-phase three-wire circuit with one unit. Easy to inspect with arre... Read More
    Discharge Resistance (kA)  10 (once)  Mass (g)  About 90 
    Rating:
    86%
    from S$87.99
    Min. 2 days
  10. Thunder Detector
    Nisshin Electric Thunder Detector
    Quickly detect the approach of lightning! "Thunder finder" is a business card-sized lightning detector that you can easily carry around. It can detect the approach of lightning faster than thunder and take quick evacuation action. High sensitivity about 40km detection. Outdoor leisure s... Read More
    Dimensions, Width W x Depth D x Height H (mm)  54.5×86×15.5 
    from S$279.90
    Min. 2 days
  11. SPD for power supply
    OTOWA ELECTRIC SPD for power supply
    Excellent responsiveness and non-continuous flow. Compact and protects between lines and ground of single-phase two-wire circuits with one unit. With a safety function when it deteriorates.
    Operating Temperature Range (℃)  -20~+50  Maximum discharge current (8 / 20μs) (kA)  10  Starting Voltage (V)  270±10%  Compatible cable (mm2 2~5.5  Nominal discharge current (8 / 20μs) (kA)  Protection Class  IP20 
    from S$99.90
    Min. 2 days
  12. SPD ZP type for communication
    Sankosha SPD ZP type for communication
    Rating:
    60%
    from S$64.99
    Min. 2 days
  13. Thunder blocker series [For power supply]
    SHODEN Thunder blocker series [For power supply]
    from S$69.99
    Min. 2 days
  14. SPD zinc oxide type for LGL series power supply
    OTOWA ELECTRIC SPD zinc oxide type for LGL series power supply
    Excellent responsiveness and non-continuous flow. With a safety function when it deteriorates. Easy and reliable inspection and attachment / detachment mechanism. Can be used for connection between ground electrodes.
    from S$119.90
    Min. 2 days
  15. SPD tester for ZP type communication
    Sankosha SPD tester for ZP type communication
    Function  Deterioration judgment  Suitable Battery  AA x 2 (not included)  Suitable for  ZP type SPD 
    from S$24.99
    Min. 2 days
  16. SR-GVJ series
    OTOWA ELECTRIC SR-GVJ series
    Compatible with RS485 line DIN rail compatible plug-in type (easy to inspect and replace) With SPD function display (when using an optional item) RoHS regulated substance compliant Ministry of Land, Infrastructure, Transport and Tourism Public building construction standard specifications complia... Read More
    Series resistance / wire (Ω) 
    from S$329.90
    Min. 2 days
  17. SPD SN type for communication
    Sankosha SPD SN type for communication
    For RS-422 line
    from S$97.99
    Min. 2 days
  18. For thunder protector LAN
    OTOWA ELECTRIC For thunder protector LAN
    Protects network devices and PCs that connect to LAN lines without the need for grounding. With a built-in high yield strength pulse transformer, it is electrically insulated and does not require grounding. Supports Gigabit Ethernet 1000BASE-T / 100BASE-TX / 1000BASE-T. The impulse withstand volt... Read More
    Operating Temperature Range (℃)  -20~70  Insertion loss (dB)  1.5 or less  Frequency Band (MHz)  1~100  Ambient Humidity (% RH)  90 or less (non-condensing)  Withstand Voltage (kV)  AC / Primary / Secondary: 5 (2 seconds)  Mass (g)  About 40  Shape  Modular: RJ-45 (8 cores)  Rated Impulse Withstand Voltage (kV)  Primary / Secondary: 7 (1.2 / 50μs)  Cable  UTP category 5e / 6 / 6A cable 
    from S$229.90
    Min. 2 days
  19. Lightning surge protection parts for board mounting
    Sankosha Lightning surge protection parts for board mounting
    Since it is an element type, it can be installed in a small space.
    Capacitance  3pF or less (1MHz) 
    from S$12.99
    Min. 2 days
  20. Triode arrester
    Sankosha Triode arrester
    It is mounted on internal circuits of communication equipment, etc., and is used for the purpose of protecting the equipment from induced voltages induced in communication lines and signal circuits. Various electronic devices, communication line protection, exchanges, PBXs, telephones, fax machines
    Number of Poles 
    from S$3.89
    Min. 14 days
  21. U link
    Sankosha U link
    from S$5.89
    Min. 9 days
  22. Thunder guard discharge type PoE for LAN
    Nisshin Electric Thunder guard discharge type PoE for LAN
    It is a discharge type lightning guard. It also supports PoE. Equipped with highly reliable GDT. By connecting to the power supply (NPL-3001), it protects information and communication equipment from abnormal voltages such as lightning surges from communication lines and commercial power supplies... Read More
    Mass (g)  60  Dimensions, Width W x Height H x Depth D (mm)  40×23×82  Suitable for  (Line) 1000BASE-T, 100BASE-TX, 10BASE-T  Voltage protection level (V)  500 or less 
    from S$169.90
    Min. 2 days
  23. Arrester for Ethernet
    M-SYSTEM Arrester for Ethernet
    Protects equipment from lightning surges that invade communication networks. Supports communication standards up to 1000BASE-T. Compatible with PoE and PoE Plus devices. For the shielded wire processing of the LAN cable, grounding or floating can be selected with the short bar. Compact and lightw... Read More
    Material (Housing)  Flame retardant black resin  Material (Terminal) / Finish  Brass (Brass) / Nickel plating 
    from S$249.90
    Min. 2 days
  24. Power Circuit Protector
    Sankosha Power Circuit Protector
    Rating:
    100%
    from S$97.99
    Min. 2 days
  25. Thunder Blocker Series [For power supply / ADSL / telephone circuit]
    SHODEN Thunder Blocker Series [For power supply / ADSL / telephone circuit]
    It is a compact and lightweight yet highly reliable retaining outlet type. It supports a variety of devices, from personal computers to multi-function telephones. Compact power supply / communication type that supports everything from personal computers to telephone lines
    Outlet  × 1 mouth  Plug  AC: 2P / E (ground pin can be removed)  Connector  Modular: RJ-11 (2 cores)  Rated Voltage (V)  AC125・15A(1,500W)  Body dimensions (width W x height H x depth D) (mm)  47×66×34 
    from S$86.99
    Min. 2 days
  26. Sun earth (earth resistance reduction material)
    Sankosha Sun earth (earth resistance reduction material)
    from S$169.90
    Min. 2 days
  27. Communication SPD [Communication / Signal] SG Series
    SHODEN Communication SPD [Communication / Signal] SG Series
    Adopted a plug-in structure SPD for FA equipment and instrumentation equipment Protects equipment from lightning surges that enter from communication and signal lines * Supervised by the Ministry of Land, Infrastructure, Transport and Tourism, Ministry of Land, Infrastructure, Transport and Touri... Read More
    Operating Ambient Temperature (℃)  -40~+70  RoHS directive (corresponding to 10 substances)  Operating humidity (%)  95 or less (non-condensing) 
    from S$329.90
    Min. 2 days
  28. Power arrester
    M-SYSTEM Power arrester
    It can be used for power circuits up to 2A. 50 / 60Hz commercial power passes with a free pass. With power indicator lamp. Protects electronic devices from inductive lightning surges that invade power circuits * Be sure to wire the housing of the protected device and the grounding terminal of the... Read More
    from S$329.90
    Min. 2 days
  29. P-valve lightning arrester for low pressure
    OTOWA ELECTRIC P-valve lightning arrester for low pressure
    When the lightning arrester operates, a discharge trace remains on the display surface of the characteristic element (element). It protects equipment with low dielectric strength from lightning surges. The replacement time of the characteristic element can be easily determined from the discharge ... Read More
    Nominal discharge current (8 / 20μs) (kA)  1.5  Rated Voltage (V)  AC110  Operating Temperature Range (℃)  -20~+50 
    from S$199.90
    Min. 2 days
  30. SPD SG-ZJ series for control power circuit
    OTOWA ELECTRIC SPD SG-ZJ series for control power circuit
    Ministry of Land, Infrastructure, Transport and Tourism Public Building Construction Standard Specifications Compliant Product Compatible with JIS C 5381-21 compatible contact signals Great protection capability DIN rail compatible plug-in type (easy to inspect and replace) RoHS regulated substan... Read More
    Rated Current (A)  10  Impulse resistance  C2(8/20μs) 10kA、D1(10/35μs)3kA 
    from S$139.90
    Min. 2 days
  31. SL-GVJ series
    OTOWA ELECTRIC SL-GVJ series
    Maximum Load Current (mA)  100  Impulse resistance  (8/20μs)10kA、(10/350μs)5kA  Series resistance / wire (Ω)  9.1 
    from S$199.90
    Min. 2 days
  32. SPD MZSR type for power circuits
    Sankosha SPD MZSR type for power circuits
    from S$77.99
    Min. 9 days
  33. Lightning surge protector (Gigabit compatible)
    SANWA SUPPLY Lightning surge protector (Gigabit compatible)
    Protects networked devices from lightning surges. It supports Gigabit Ethernet. Category 5e (1000BASE-T) transmission is possible. It supports PoE (Power over Ethernet) (48V). With a forged aluminum body, EMC noise is perfect. * Since this product uses electronic components inside, it will not pa... Read More
    Operating Temperature Range (℃)  -20~60  Operating humidity (%)  0 to 90 (no condensation)  Data Transfer Rate  1000(1000BASE-T)  Impedance (Ω)  1000M (insulation)  Mass (g)  105  Dimensions, Width W x Depth D x Height H (mm)  25×120×25  Response Time  5 ns or less  Rated Voltage  Data / 5V, Power / 48V  Cable Length (m)  Ground cable / 0.27 (with Y terminal)  Nominal discharge current (8 / 20μs) (kA)  Power data / 10  Number of Pins  Protection pins / all 8  Impulse Voltage (V)  Protection voltage / 500 or less  Connector Shape  RJ-45 shield port 
    from S$329.90
    Min. 2 days
  34. SPD for board
    Naigai Energering SPD for board
    Protects power circuits of various electrical, electronic, and communication equipment from lightning surges. You can check that the function is normal with the indicator light. The external dimensions conform to the JIS agreement type molded case circuit breaker (for 3 poles). Copper strips for ... Read More
    Operating Temperature Range (℃)  -20~+50  Maximum discharge current (8 / 20μs) (kA)  Between lines / ground: 10 (3 times)  Nominal discharge current (8 / 20μs) (kA)  Between lines / ground: 5 
    from S$229.90
    Min. 2 days
  35. Thunder guard discharge type for LAN
    Nisshin Electric Thunder guard discharge type for LAN
    It is a discharge type lightning guard. Equipped with highly reliable GDT. By connecting to the power supply (NPL-3001), it protects information and communication equipment from abnormal voltages such as lightning surges from communication lines and commercial power supplies. Highly reliable desi... Read More
    Dimensions, Width W x Height H x Depth D (mm)  40×23×82  Suitable for  (Line) 1000BASE-T, 100BASE-TX, 10BASE-T  Mass (g)  60  Voltage protection level (V)  500 or less 
    from S$99.90
    Min. 10 days
  36. SPD for slim type control power circuit
    OTOWA ELECTRIC SPD for slim type control power circuit
    AC / DC shared for control power supply circuit.
    Impulse resistance  (8/20μs)10kA、(10/350μs)2kA 
    from S$139.90
    Min. 5 days
  37. SPD class II for power supply
    OTOWA ELECTRIC SPD class II for power supply
    from S$109.90
    Min. 2 days
  38. SPD PMZ type for power circuits
    Sankosha SPD PMZ type for power circuits
    from S$64.99
    Min. 2 days
  39. Power surge arrester
    M-SYSTEM Power surge arrester
    Protects equipment from lightning-induced surges coming from power sources or back electromotive force surges from inductors. Built-in fuse (1A for each wire) in the element part. JIS compliant
    Classification of the Hazardous  Non-dangerous goods  Specification  Without DIN rail adapter 
    from S$249.90
    Min. 5 days
  40. Diode tube arrester
    Sankosha Diode tube arrester
    from S$3.29
    Min. 9 days
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