Surge Suppressor Units

Surge suppressor units are a kind of protective device used to ensure that electrical equipment is not damaged by a sudden voltage spike. This can be caused by a lightning strike or simply an electrical fault. Surge suppressors are often built into devices such as power strips, but they are also available as standalone units.

How do surge suppressor units work?

Surge suppressor units protect devices by blocking or diverting the excess voltage to the ground. They are triggered when the voltage exceeds a pre-determined threshold. They are often used as part of power distribution units, and sometimes come with a warning light to indicate pre-failure.

Types of surge suppressor units

Surge suppressor units can vary in a number of ways, including the mounting method they require, their maximum surge current, and the type of electrical equipment they are to be used with. For example:

  • a coaxial surge suppressor is used with coaxial cable
  • a category 6 surge suppressor is used with category 6 cables

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Description Price Suppressor Type Maximum Voltage Rating Mounting Type Maximum Surge Current Series Length Depth Height Dimensions Lead Pitch Minimum Operating Temperature Maximum Operating Temperature CAD Drawing
RS Stock No. 240-393
BrandRS PRO
$22.11
Each
units
Mains Protector 500 V DIN Rail - RC 62mm 19mm 40mm 62 x 19 x 40mm - -40°C +70°C -
RS Stock No. 813-430
BrandRS PRO
$38.65
Each
units
1 Phase 500 V Flange Mount - RC 49mm - 57mm 49 x 57mm - -40°C +70°C -
RS Stock No. 240-400
BrandRS PRO
$25.07
Each
units
3 Phase 500 V DIN Rail - RC 62mm 19mm 40mm 62 x 19 x 40mm - -40°C +70°C -
RS Stock No. 206-7522
BrandRS PRO
$48.13
Each
units
Mains Protector 230 V ac - 13.5kA BS1363 90mm 60mm 40mm 90 x 60 x 40mm - - - -
RS Stock No. 206-7926
BrandRS PRO
$229.86
Each
units
EMC Filter 253 V DIN Rail 6.5kA MAXX - - - - - -25°C +85°C -
RS Stock No. 206-7910
BrandRS PRO
$229.22
Each
units
EMC Filter 253 V DIN Rail 6.5kA MAXX - - - - - -25°C +85°C -
RS Stock No. 288-187
BrandRS PRO
$206.42
Each
units
Coaxial Line Arrester 90 V - 10kA - - - - - - -30°C +80°C -
RS Stock No. 905-5771
Mfr. Part No.SNUB0000
BrandRed Lion
$20.23
Each
units
Inductive Load Suppressor 250 V dc - - R-C 19mm 8.5mm 125mm 19 x 8.5 x 23mm - - - -
RS Stock No. 672-7035
Mfr. Part No.XEB1201
$20.92
Each (In a Pack of 5)
units
Mains Protector - Flange Mount - XEB 19mm 8.5mm 25mm 19 x 8.5 x 25mm - -40°C +85°C -
RS Stock No. 226-6454
Mfr. Part No.VSU3W
$46.79
Each
units
Transient Voltage Suppressor 480 V - 40A VSU 150mm 40mm 40mm 150 x 40 x 40mm - - - -
RS Stock No. 456-8162
Mfr. Part No.ESP 15E
BrandWJ Furse
$169.61
Each
units
Twisted Pair Surge Protector 16.7 V DIN Rail 5 kA, 20 kA ESP E 120mm 19mm 54mm 120 x 54 x 19mm - -25°C +70°C -
RS Stock No. 672-7048
Mfr. Part No.3CRH30330
$109.38
Each
units
3 Phase 500 V ac Flange Mount - CRH 66mm 32mm 62mm 66 x 32 x 62mm 13mm -40°C +70°C -
RS Stock No. 761-5766
Mfr. Part No.VSU4W
BrandDeltron
$56.92
Each
units
Voltage Suppression Unit 275 V Screw Mount 6.5A VSU 40mm 40mm 35mm 40 x 40 x 35mm - - - -
RS Stock No. 768-1798
Mfr. Part No.DR M 4P 255
BrandDehn
$458.00
Each
units
Surge Arrester 440 V ac DIN Rail 8kA DR 90mm 36mm 66mm 90 x 36 x 66mm - -40°C +80°C -
RS Stock No. 456-8140
Mfr. Part No.ESP 240-16A
BrandWJ Furse
$335.34
Each
units
Low Current Mains Protector 280 V DIN Rail 10kA ESP 240 120mm 38mm 54mm 120 x 54 x 38mm - -40°C +70°C -
RS Stock No. 768-1748
Mfr. Part No.DG M TT 275 FM
BrandDehn
$637.27
Each
units
Type 2 Arrester 275 V ac DIN Rail 40kA DG 72mm 66mm 90mm 72 x 66 x 90mm - -40°C +80°C -
RS Stock No. 311-5830
Mfr. Part No.9113600
BrandSollatek
$66.79
Each
units
Over Voltage Protector, Under Voltage Protector 230 V ac - 6.5kA AVS13 134mm 54mm 230mm 134 x 54 x 230mm - - - -
RS Stock No. 672-7039
Mfr. Part No.CRH30330
$32.23
Each
units
3 Phase 500 V ac Flange Mount - CRH 50mm 20mm 57mm 50 x 20 x 57mm 18mm -40°C +70°C -
RS Stock No. 768-1772
Mfr. Part No.DG MOD 275
BrandDehn
$93.10
Each
units
Surge Arrester Protection Module 275 V ac, 350 V dc Plug In 40kA DG 45mm 18mm 51mm 45 x 18 x 51mm - - - -
RS Stock No. 737-0003
Mfr. Part No.PTG-20101003
$91.76
Each
units
Lightning Strike Protector - - - PTG 64.75mm 29mm 22.85mm 64.75 x 29 x 22.85mm - -40°C +85°C -
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