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Showing Results For: Surge Protection Devices

Surge Protection Devices

Surge protection devices, or SPDs, are safety devices designed to protect electrical equipment from electrical surges, generally referred to as transient overvoltages, running across the system. Transients, a safety hazard, can significantly damage the device. These transient overvoltages are overcome due to the surge protectors that conduct them to the earth, thus limiting the voltage to normal.

Where are surge protection devices installed?

Normally, SPDs are installed within consumer units; however, they can also be set up in a separate enclosure in the case of limited space.

What are transient overvoltages? How are they produced?

Transient overvoltages are short-term electric surges that result from abrupt energy release through alternate ways. They are generated either naturally by lightning strikes, switching sources, or man-made.  

What are the types of surge protection devices?

SPDs are classified into four main types, including: 

  • Surge protection modules

These surge protector modules protect point-of-use devices, allowing protection against current spikes and overvoltages.

  • Branch surge panels 

These panels are prefixed to the service entrance load side and are designed to protect against internally produced and motor-driven surges.

  • Secondary surge arresters 

They are preinstalled on the service panel’s line side and are responsible for protecting against switching or lightning events.

  • Power strips

These strips are designed to significantly protect sensitive (with lower voltage & ampere) electronics by blocking current spikes. 

Applications of surge protection devices:

SPDs are suited for the protection of a wide variety of electronic devices in specific applications, such as: 

 

  • Computers
  • TVs
  • Safety Circuits
  • Washing Machines
  • Distribution System
  • Industrial Systems
  • Power Distribution Panels.

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5SD7483-0KK01, Siemens
2 In Stock
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£ 57.48
Phoenix Contact
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1016811, Phoenix Contact
35 In Stock
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£ 105.42
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1248961, Phoenix Contact
46 In Stock
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£ 282.73
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1042281, Phoenix Contact
39 In Stock
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£ 386.63
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5SD7483-0KK02, Siemens
2 In Stock
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£ 65.81
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1105828, Phoenix Contact
60 In Stock
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£ 124.45
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1182566, Phoenix Contact
79 In Stock
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£ 92.23
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1316312, Phoenix Contact
30 In Stock
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£ 96.53
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1334594, Phoenix Contact
44 In Stock
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£ 196.49
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1101177, Phoenix Contact
59 In Stock
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£ 300.00
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1056071, Phoenix Contact
42 In Stock
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£ 282.82
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1180145, Phoenix Contact
72 In Stock
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£ 315.06
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1197151, Phoenix Contact
88 In Stock
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£ 123.15
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1252660, Phoenix Contact
62 In Stock
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1334595, Phoenix Contact
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1180144, Phoenix Contact
71 In Stock
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£ 274.83
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1248960, Phoenix Contact
45 In Stock
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1038842, Phoenix Contact
38 In Stock
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£ 56.56
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1182571, Phoenix Contact
80 In Stock
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£ 223.12
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1197145, Phoenix Contact
87 In Stock
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£ 140.18
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5SY1708-4, Siemens
42 In Stock
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£ 28.40
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2404843, Phoenix Contact
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£ 401.43
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5SY1702-2, Siemens
33 In Stock
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£ 29.78
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39 In Stock
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58 In Stock
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MLLS05K-277V-S, MTL

MLLS05K-277V-S, MTL

The MTL Surge Technologies LS05K series range of surge protection devices are versatile, high performance surge protection devices which can be used within a wide variety of equipment in industrial and commercial applications. The circuitry will protect equipment from damaging electrical transients and disturbances. The space saving footprint allows the range to be mounted in confined locations whilst providing protection the Line/Neutral, Line/Ground, and Neutral/Ground modes. A high performance to size ratio is provided utilizing a Thermally Protected Metal Oxide Varistor (TP-MOV) together with a state of the art failure disconnect network giving added peace of mind. 10kA surge protection per mode Protects LED lighting systems and drivers Space saving footprint for mounting in confined locations Protects 120V-277V,347V & 440-480V systems High performance to size ratio and fully automatic operation
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2905988, Phoenix Contact

2905988, Phoenix Contact

Phoenix Contact Lightning Arresters The FLT-SEC lightning arresters combine surge protection and backup fuse in a single connectors. It is no longer necessary to install a separate arrester backup fuse; this save space and reduces installation costs. Industrial Circuit Protection
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3RT2926-1CE00, Siemens

3RT2926-1CE00, Siemens

Surge Suppressors A selection of Surge Suppressors for use with the SIRIUS range of Contactors Siemens Sirius Range Contactor & Control Relays Siemens control gear for feeders up to 5.5kW. The complementary nature of the devices allows fast and simple assembly, for example, of motor starters and reversers. A perfect match between contactors, overloads, circuit breakers and accessories for the same power ratings provides a uniform panel appearance and the standard widths with no side-by-side mounting derating allows for space saving.
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5SY1708-4, Siemens

5SY1708-4, Siemens

The Siemens device circuit breaker having 1-pole with auxiliary switch NO contact characteristic, the mechanical life is 6000 cycles. Halogen-free Sealable Silicon-free
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2909636, Phoenix Contact

2909636, Phoenix Contact

The Phoenix Contact type 2 surge protection plug has optical and mechanical status indicator. It is a high-performance gas-filled surge arrester for N/PE protection. Pluggable Free of leakage current
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LV480DI-U4, Okaya Electric Industries

LV480DI-U4, Okaya Electric Industries

SPD with a fail safe function to prevent short-circuit (separation of circuit and element is visually confirmable). Protection against lightning surge for single/three phase power supplies. Quick response for surge. Impulse current capacity 8/20μs-5000A. Applications Tapping machines, NC machines, other machine tools Lithography equipment, washing devices, IC testers Injection molding machines, winding machines, surface mounters Vehicle air conditioners Servo amplifiers Electric facilities or other industrial equipment
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1065314, Phoenix Contact

1065314, Phoenix Contact

The Phoenix Contact surge protection device has ability of signalling without additional auxiliary power, thanks to the mechanical status indicator. It has grounded or insulated shield grounding. Error-free replacement of protective plugs The signal is not influenced during maintenance work Space-saving
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1069191, Phoenix Contact

1069191, Phoenix Contact

The Phoenix Contact sensor is a pulse measuring device sensor for the real-time recording of surge currents and transient overvoltage. It is designed for use in combination with the Impulse Check evaluation unit
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2906738, Phoenix Contact

2906738, Phoenix Contact

The Phoenix Contact surge protection device has ability of signalling without additional auxiliary power, thanks to the mechanical status indicator. It has grounded or insulated shield grounding. Error-free replacement of protective plugs The signal is not influenced during maintenance work Space-saving
New items
2907387, Phoenix Contact

2907387, Phoenix Contact

The Phoenix Contact combination type 1/2 protective device has optical and mechanical status indicator. It comes with floating remote indication contact. Pluggable High continuous voltage
New items
3RT2916-1PB1, Siemens

3RT2916-1PB1, Siemens

The Siemens EMC surge suppression module has RC element. It has 400V supply voltage. It is use for motor contactors Size S00. Control supply voltage 400 V Mounting type clip-on Design of the surge suppressor with RC elements
New items
5SD7461-0, Siemens

5SD7461-0, Siemens

The Siemens 5SD series is a surge arresters,type 2 with requirement class c and Pluggable protective modules. L-N circuit for TN-S and TT systems . It has Protection class rating of IP20 Type of distributive system is TT,TN-S
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Surge Protection Devices and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Surge Protection Devices or any other product.
This depends on the Surge Protection Devices individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Surge Protection Devices and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Surge Protection Devices.
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