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Showing Results For: TVS - Surge Protection Devices (SPDs)

TVS - Surge Protection Devices (SPDs)

Surge protection devices are typically employed to secure the electronics system configuration, which comprises a unit called consumer, wiring, and accessories; from an electrical power perspective, transient overvoltages come into being.

This equipment is being used to ensure the protection of sensitive electronic devices during the installation of the communicating device, which includes computers, televisions, washing machines, and potential circuits, also incorporates some fire detection systems and Emergency Lighting. Electronic circuitry consists of sensitive equipment that can be vulnerable to impairment with the help of transient overcurrent.

What are TVS - Surge Protection Devices (SPDs)?

The results of a surge can be either an immediate failure or equipment damage that becomes apparent over time. Although other types of SPD are available to protect the installation from other incoming services, such as telephone lines and cable TV, SPDs are typically put within the Consumer Unit to safeguard the electrical installation. It is important to bear in mind that by only protecting the electrical installation and not the other services, transient voltages may find another way into the system.

The most used three different types of Surge Protective Devices:

  • A Type 1 SPD is configured at the start of the application, e.g., the main distribution board.
  • Type 2 SPDs are configured at sub-distribution boards (Type 1 & 2 SPDs are available and are usually installed in consumer units).
  • Type 3 SPD is configured close to the protected load. They are primarily only installed as an addition to Type 2 SPD.

How do transient overvoltages function?

The switching of motors and Transformers, as well as various types of lighting, causes man-made transients to arise. Since the introduction of the new With technologies like air/ground source heat pumps, electric vehicle charging stations, and speed-controlled washing machines, transients have become considerably more likely to occur in home installations. Historically, this has not been a problem.


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Littelfuse Inc.
LST1805VL2NT1, Littelfuse Inc.
69 In Stock
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Littelfuse Inc.
LST5105VL2NT1, Littelfuse Inc.
79 In Stock
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Littelfuse Inc.
LST3857VL2NT1, Littelfuse Inc.
1516 In Stock
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720 +
£ 15.43
Littelfuse Inc.
LST2755VL2NT1, Littelfuse Inc.
697 In Stock
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£ 18.04
10 +
£ 16.63
72 +
£ 15.88
Littelfuse Inc.
LST4205VL2NT1, Littelfuse Inc.
1517 In Stock
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720 +
£ 13.64
Littelfuse Inc.
LST1507VL2NT1, Littelfuse Inc.
128 In Stock
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£ 18.89
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£ 17.41
72 +
£ 16.63
Littelfuse Inc.
LST6905VL2NT1, Littelfuse Inc.
1523 In Stock
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720 +
£ 14.51
Littelfuse Inc.
LST5505VL2NT1, Littelfuse Inc.
81 In Stock
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1 +
£ 20.28
10 +
£ 18.71
72 +
£ 17.86
Littelfuse Inc.
LST1505VL2NT1, Littelfuse Inc.
133 In Stock
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1 +
£ 16.45
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£ 15.16
72 +
£ 14.48
Littelfuse Inc.
LST3205VL2NT1, Littelfuse Inc.
73 In Stock
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1 +
£ 18.04
10 +
£ 16.63
72 +
£ 15.88
Littelfuse Inc.
LST2757VL2NT1, Littelfuse Inc.
132 In Stock
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1 +
£ 20.64
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£ 19.03
72 +
£ 18.17
Littelfuse Inc.
LST3207VL2NT1, Littelfuse Inc.
74 In Stock
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1 +
£ 20.64
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£ 19.03
72 +
£ 18.17
Littelfuse Inc.
LST3855VL2NT1, Littelfuse Inc.
1515 In Stock
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720 +
£ 13.64
Littelfuse Inc.
LST1807VL2NT1, Littelfuse Inc.
1510 In Stock
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720 +
£ 13.50
Littelfuse Inc.
LST4207VL2NT1, Littelfuse Inc.
1518 In Stock
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720 +
£ 15.43
Littelfuse Inc.
LST5107VL2NT1, Littelfuse Inc.
1520 In Stock
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720 +
£ 15.43
Littelfuse Inc.
LST5507VL2NT1, Littelfuse Inc.
82 In Stock
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£ 21.59
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£ 19.91
72 +
£ 19.01
Conta-Clip, Inc.
16045.2, Conta-Clip, Inc.
20 In Stock
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1 +
£ 520.63
Conta-Clip, Inc.
16043.2, Conta-Clip, Inc.
19 In Stock
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1 +
£ 232.61
Eaton - Bussmann Electrical Division
SPH50SP3480PNG, Eaton - Bussmann Electrical Division
17 In Stock
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Eaton - Bussmann Electrical Division
BSPD5BNCDD, Eaton - Bussmann Electrical Division
7 In Stock
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Eaton - Bussmann Electrical Division
SPP40SP4480HLG, Eaton - Bussmann Electrical Division
27 In Stock
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£ 140.23
Eaton - Bussmann Electrical Division
SPP40SP4600WYNG, Eaton - Bussmann Electrical Division
29 In Stock
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1 +
£ 140.23
Eaton - Bussmann Electrical Division
BSPD5DING, Eaton - Bussmann Electrical Division
152 In Stock
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72 +
£ 165.91
Eaton - Bussmann Electrical Division
SPH50SP2120SNG, Eaton - Bussmann Electrical Division
15 In Stock
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£ 132.90
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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 TVS - Surge Protection Devices (SPDs) and all others.
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UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including TVS - Surge Protection Devices (SPDs).
Yes. We keep updating our stock frequently and if a product like TVS - Surge Protection Devices (SPDs) is not in stock then we will let you know.