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. 802-6704
Mfr. Part No.2817990
TWD4,265
Each
units
Surge Arrester Protection Module 230 V ac Through Hole 40kA F-MS12 52.5mm 17.4mm 55.5mm 52.5 x 17.4 x 55.5mm - -40°C +80°C 3D CAD Model
RS Stock No. 445-5426
Mfr. Part No.2838775
TWD5,213
Each
units
Protective Plug 14 V dc DIN Rail 20kA PT 45mm 17.7mm 52mm - - -40°C +85°C -
RS Stock No. 802-6542
Mfr. Part No.2798844
TWD1,324
Each
units
Surge Arrester Protection Module 230 V ac DIN Rail 40kA VAL-MS 17.7mm 54.5mm 52.4mm 17.7 x 54.5 x 52.4mm - -40°C +80°C -
RS Stock No. 251-3823
BrandMTL
TWD4,330
Each
units
Surge Protection Device 22 V ac, 32 V dc DIN Rail 20kA SD 7mm 109.6mm 99mm 7 x 109.6 x 99mm - -40°C +80°C -
RS Stock No. 456-8162
Mfr. Part No.ESP 15E
BrandWJ Furse
TWD4,034
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. 756-4510
Mfr. Part No.BPM275WE
TWD840
Each
units
2 Pole Arrester 275 V ac DIN Rail 40kA BPM 90mm 54mm 43.5mm 90 x 54 x 43.5mm - -40°C +80°C -
RS Stock No. 848-4504
Mfr. Part No.9M102520
BrandSollatek
TWD10,807
Each
units
Mains Surge Protector 255 V DIN Rail 120kA DSP1P 72mm 90mm 67mm 72 x 90 x 67mm - -40°C +80°C -
RS Stock No. 854-4860
Mfr. Part No.2800645
TWD18,938
Each
units
Lightning Arrester 335 V ac DIN Rail 150kA - 71.2mm 77.5mm 90mm 71.2 x 77.5 x 90mm - -40°C +80°C -
RS Stock No. 167-8177
Mfr. Part No.B88069X7200B502
BrandEPCOS
TWD136
Each (In a Tray of 500)
units
3 Pole Arrester 350 V dc Through Hole 25kA B88069X 13.4mm 8mm 10.5mm 13.4 x 8 x 10.5mm - -40°C +90°C -
RS Stock No. 216-0609
Mfr. Part No.B88069X7200B502
BrandEPCOS
TWD92
Each
units
3 Pole Arrester 350 V dc Through Hole 25kA B88069X 13.4mm 8mm 10.5mm 13.4 x 8 x 10.5mm - -40°C +90°C -
RS Stock No. 170-9938
Mfr. Part No.PGB1010603NR
BrandLittelfuse
TWD67,304
1 Reel of 5000
Reel(s)
ESD Suppressor 24 V dc Surface Mount - PGB1 1.66mm 0.84mm 0.36mm 1.66 x 0.84 x 0.36mm - -65°C +125°C -
RS Stock No. 760-6759
Mfr. Part No.PGB1010603NR
BrandLittelfuse
TWD18
Each (In a Pack of 5)
units
ESD Suppressor 24 V dc Surface Mount - PGB1 1.66mm 0.84mm 0.36mm 1.66 x 0.84 x 0.36mm - -65°C +125°C -
RS Stock No. 172-8710
Mfr. Part No.1977-09-A01
BrandBourns
TWD6,150
Each (In a Box of 10)
units
Coaxial Surge Protector 130 V dc Through Hole 20kA 1977 68mm 26 (Dia.)mm - 68 x 26 (Dia.)mm - -50°C +85°C -
RS Stock No. 788-6744
Mfr. Part No.ESP RS485
BrandWJ Furse
TWD3,822
Each
units
RS485 Surge Protector 16.7 V DIN Rail 5 kA, 20 kA - 105mm 38mm 54mm 120 x 54 x 19mm - -40°C +80°C -
RS Stock No. 703-1089
Mfr. Part No.B88069X4051T902
BrandEPCOS
TWD130
Each
units
3 Pole Arrester 90 V dc Surface Mount 5kA B88069X 8mm 5mm 5.6mm 8 x 5 x 5.6mm - -40°C +90°C -
RS Stock No. 172-7297
Mfr. Part No.1250-1S-400
BrandBourns
TWD4,356
Each (In a Box of 8)
units
1 Pole Protector 600 V ac DIN Rail 100kA 1250 18mm 67mm 90mm 18 x 67 x 90mm - -50°C +85°C -
RS Stock No. 788-6729
Mfr. Part No.ESP SLRS485
BrandWJ Furse
TWD5,102
Each
units
RS485 Surge Protector 16.7 V DIN Rail 2.5 kA, 20 kA ESP SL 106.5mm 7mm 104.6mm 106.5 x 7 x 104.6mm - -40°C +80°C -
RS Stock No. 167-0348
Mfr. Part No.B88069X4051T902
BrandEPCOS
TWD130
Each (On a Reel of 900)
units
3 Pole Arrester 90 V dc Surface Mount 5kA B88069X 8mm 5mm 5.6mm 8 x 5 x 5.6mm - -40°C +90°C -
RS Stock No. 672-7035
Mfr. Part No.XEB1201
TWD141
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. 206-7910
BrandRS Pro
TWD7,559
Each
units
EMC Filter 253 V DIN Rail 6.5kA MAXX - - - - - -25°C +85°C -