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. 802-6485
Mfr. Part No.0441711
HK$1,022.31
Each
units
Surge Arrester Protection Module 240 V ac DIN Rail - CT-TERMIBLOCK 10 DA 43mm 118mm 40.9mm 43 x 118 x 40.9mm - -40°C +85°C -
RS Stock No. 788-6750
Mfr. Part No.ESP 415 M1
BrandWJ Furse
HK$7,547.23
Each
units
Mains Surge Protector 280 V DIN Rail 6.25 kA, 80 kA ESP M1 - 110mm 180mm 180 x 110 x 73mm - -40°C +70°C -
RS Stock No. 851-8221
Mfr. Part No.1500-1D
BrandBourns
HK$1,068.51
Each (In a Pack of 10)
units
Isolated Ethernet Protector 150 V Wall Mount 3kA 1500 65.1mm 25.12mm 107.01mm 65.1 x 25.12 x 107.01mm - -40°C +65°C -
RS Stock No. 802-6542
Mfr. Part No.2798844
HK$819.67
Each
units
Surge Arrester Protection Module 230 V ac DIN Rail 40kA VAL-MS 230 ST 17.7mm 54.5mm 52.4mm 17.7 x 54.5 x 52.4mm - -40°C +80°C -
RS Stock No. 220-3627
Mfr. Part No.2817738
HK$370.17
Each
units
Surge Arrester - DIN Rail - VAL-MS BE/FM 96.8mm 17.7mm 52mm - - -40°C +80°C -
RS Stock No. 251-3823
BrandMTL
HK$1,317.95
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. 172-8710
Mfr. Part No.1977-09-A01
BrandBourns
HK$846.46
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. 785-8196
Mfr. Part No.1977-09-A01
BrandBourns
HK$846.46
Each
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. 198-0452
Mfr. Part No.ESP TN
BrandWJ Furse
HK$792.54
Each
units
Telephone Line Protector 296 V DIN Rail 5 kA, 20 kA ESP D/TN 120mm 19mm 54mm 120 x 54 x 19mm - -25°C +70°C -
RS Stock No. 311-5868
Mfr. Part No.91300000
BrandSollatek
HK$764.38
Each
units
Over Voltage Protector, Under Voltage Protector 230 V ac - 6.5kA AVS30 134mm 54mm 230mm 134 x 54 x 230mm - - - -
RS Stock No. 672-7039
Mfr. Part No.CRH30330
HK$188.53
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. 226-6448
Mfr. Part No.VSU2W
HK$147.99
Each
units
Transient Voltage Suppressor 275 V - 40A VSU 150mm 40mm 40mm 150 x 40 x 40mm - - - -
RS Stock No. 768-1820
Mfr. Part No.BXTU ML2 BD S 0-180
BrandDehn
HK$1,454.49
Each
units
Lightning Arrester 127 V ac, 180 V dc DIN Rail 20kA BXTU 12mm 66mm 90mm 12 x 66 x 90mm - -40°C +80°C -
RS Stock No. 522-7121
Mfr. Part No.92900000
BrandSollatek
HK$449.77
Each
units
Mains Protector 230 V ac - 6.5kA LightningGuard iSense 145mm 60mm 85mm 145 x 60 x 85mm - - - -
RS Stock No. 456-8140
Mfr. Part No.ESP 240-16A
BrandWJ Furse
HK$1,755.58
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. 890-8482
Mfr. Part No.STC-P0E-65MF
BrandSolaHD
HK$601.18
Each
units
Isolated Ethernet Protector 65 V dc Flange Mount - STC-PoE 76.2mm 25.4mm 20.32mm 76.2 x 25.4 x 76.2mm - - - -
RS Stock No. 768-1849
Mfr. Part No.DGA FF TV
BrandDehn
HK$630.92
Each
units
Lightning Arrester 24 V DIN Rail 1.5kA DGA 90mm 27mm 52mm 90 x 27 x 52mm - -40°C +80°C -
RS Stock No. 768-1864
Mfr. Part No.DPA M CAT6 RJ 45S 48
BrandDehn
HK$1,423.11
Each
units
Surge Arrester 34 V ac, 57 V dc DIN Rail 10kA DPA 80mm 36mm 19mm 80 x 36 x 19mm - -20°C +60°C -
RS Stock No. 768-1710
Mfr. Part No.DV M TNS 255
BrandDehn
HK$7,677.96
Each
units
Lightning Arrester 255 V ac DIN Rail 100kA DV 90mm 144mm 66mm 90 x 144 x 66mm - -40°C +60°C -
RS Stock No. 736-9993
Mfr. Part No.PTI-451G0002
HK$2,446.87
Each
units
Isolator 300 V - - PTI 64.75mm 29mm 22.85mm 64.75 x 29 x 22.85mm - -10°C +85°C -
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