Industrial Surge Protection

Industrial surge protection components protect devices and equipment against changes in the electrical current running through the system. Current spikes or transients can cause significant damage to equipment and is also a safety hazard.

What is industrial surge protection used for?

Industrial surge protection involves the use of surge suppressors and surge arresters.

Suppressors protect equipment from voltage spikes. They block or short to ground the current in, for instance, power distribution panels, process control systems and heavy industrial systems.

Arresters protect machinery from external occurrences that cause over-voltage transients like lightning strikes or switching events. These are installed in power transmission and distribution systems.

Types of industrial surge protection

Four primary types of industrial surge protection exist:

  • Secondary surge arresters fixed to the line side of the service panel to protect against current surges from lightning or switching events.
  • Branch surge panels are fixed to the load side of the main service entrance and offer protection against motor driven and internally generated surges.
  • Power strips protect sensitive electronics with lower voltage and ampere capabilities by blocking current spikes.
  • Surge protection modules provide point-of-use protection by protecting against overvoltage and current spikes.

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Description Price Maximum Surge Current Range Voltage Protection Rating Electrical Phase Series Mounting Style Impulse Discharge Current Length Width Depth Minimum Operating Temperature Maximum Operating Temperature Dimensions Operating Temperature Range
RS Stock No. 890-3718
Mfr. Part No.2905988
SGD2,216.42
Each
units
- - ≤2.5 kV 3 FLT-SEC-P-T1-3C-440/35-FM DIN Rail 25kA 95.2mm 106.8mm 74.5mm -40°C +80°C 95.2 x 106.8 x 74.5 mm -40 → +80 °C
RS Stock No. 890-3730
Mfr. Part No.2905337
SGD369.40
Each
units
- - 2 kV 2 VAL-SEC-T2-2C-350-FM DIN Rail 40kA 97.9mm 25.4mm 74.5mm -40°C +80°C 97.9 x 25.4 x 74.5 mm -40 → +80 °C
RS Stock No. 890-3727
Mfr. Part No.2905466
SGD1,194.08
Each
units
- - 1.8 kV 1 FLT-SEC-T1+T2-1S-350/25-FM DIN Rail 100kA 95.2mm 71.2mm 74.5mm -40°C +80°C 95.2 x 71.2 x 74.5 mm -40 → +80 °C
RS Stock No. 776-3896
Mfr. Part No.A9L16297
SGD1,034.93
Each
units
5kA Acti 9 350 V - iPRD DIN Rail - 94mm 131.5mm 75.9mm -25°C +60°C 94 x 131.5 x 75.9 mm -25 → +60 °C
RS Stock No. 768-1192
Mfr. Part No.2762265
SGD486.06
Each
units
10kA - 600 V RS-485 Interface - MT-RS485 DIN Rail 500A 77.5mm 47.6mm 54.9mm -40°C +60°C 77.5 x 47.6 x 54.9 mm -40 → +60 °C
RS Stock No. 190-2024
Mfr. Part No.SV480DA-U4
SGD111.80
Each
units
- - 2000 V 3 SV Surface Mount 500A 44mm 42mm 37.5mm - - 44 x 42 x 37.5 mm -
RS Stock No. 122-9479
Mfr. Part No.3RT2926-1CE00
BrandSiemens
SGD17.80
Each
units
- Sirius Innovation 400 V ac - - Clip On - 11.5mm 18.6mm 30.2mm -25°C +60°C 11.5 x 18.6 x 30.2 mm -25 → +60 °C
RS Stock No. 890-3746
Mfr. Part No.2906101
SGD135.53
Each
units
- - ≤1.5 kV - BLT-T2-1S-320-UT Screw 20kA 56mm 36.5mm 34mm -40°C +80°C 56 x 36.5 x 34 mm -40 → +80 °C
RS Stock No. 122-9486
Mfr. Part No.3RT2936-1ER00
BrandSiemens
SGD30.96
Each
units
- Sirius Innovation 24 V dc - - Clip On - 14.4mm 27.8mm 24.2mm -25°C +60°C 14.4 x 27.8 x 24.2 mm -25 → +60 °C
RS Stock No. 179-9702
Mfr. Part No.A9C69263
SGD90.80
Each
units
- Acti 9 440 V 1 ICNV DIN Rail Mount - 36mm 84.8mm 72mm -25°C +55°C 36 x 84.8 x 72 mm -25 → +55 °C
RS Stock No. 847-3673
Mfr. Part No.FAZ-XAA-C-110-415VAC
BrandEaton
SGD66.07
Each
units
- - 110 → 230 V dc, 110 → 415 V ac - - DIN Rail - 26.2mm 80mm 69.6mm - - 26.2 x 80 x 69.6 mm -
RS Stock No. 190-2025
Mfr. Part No.SV550DA-U4
SGD115.00
Each
units
- - 2500 V 3 SV Surface Mount 500A 44mm 42mm 37.5mm - - 44 x 42 x 37.5 mm -
RS Stock No. 890-8435
Mfr. Part No.STF0150-10Y
BrandSolaHD
SGD1,466.21
Each
units
- - - 3 - Flange - 355.6mm 304.8mm 152.4mm -40°C +45°C 355.6 x 304.8 x 152.4 mm -40 → +45 °C
New
RS Stock No. 201-0764
Mfr. Part No.DDB-T2S4040KIT
BrandContactum
SGD259.26
Each
units
40kA Surge Arrestor kit 415 V 3 T2S40 DIN 63A - - - - - - -
RS Stock No. 890-3774
Mfr. Part No.2801219
SGD521.71
Each
units
- - ≤160 V - PT-IQ-4X1-48DC-UT DIN Rail 2.5kA 91mm 17.7mm 77.5mm -40°C +70°C 91 x 17.7 x 77.5 mm -40 → +70 °C
RS Stock No. 190-2015
Mfr. Part No.LV275DI-Q4
SGD43.82
Each
units
- - 1500 V 1 LV Surface Mount 500A 43mm 36.5mm 24.5mm - - 43 x 36.5 x 24.5 mm -
RS Stock No. 890-8539
Mfr. Part No.STFE050-24L
BrandSola
SGD544.40
Each
units
30 (per Phase) kA, 45 (UL) kA - - 1 - DIN Rail - 124mm 65mm 116mm -40°C +50°C 124 x 65 x 116 mm -40 → +50 °C
RS Stock No. 890-3720
Mfr. Part No.2905469
SGD1,766.01
Each
units
- - 2 kV 3 FLT-SEC-T1+T2-3C-350/25-FM DIN Rail 25kA 95.2mm 106.8mm 74.5mm -40°C +80°C 95.2 x 106.8 x 74.5 mm -40 → +80 °C
RS Stock No. 190-2023
Mfr. Part No.SV480DA-Q4
SGD90.38
Each
units
- - 2000 V 1 SV Surface Mount 500A 44mm 42mm 37.5mm - - 44 x 42 x 37.5 mm -
RS Stock No. 890-8432
Mfr. Part No.STF1000-10Y
BrandSolaHD
SGD5,722.24
Each
units
- - - 3 - Flange - 508mm 406.4mm 228.6mm -40°C +45°C 508 x 406.4 x 228.6 mm -40 → +45 °C