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. 847-3673
Mfr. Part No.278519 & FAZ-XAA-C-110-415VAC
BrandEaton
$86.78
Each
units
- - 110 → 230 V dc, 110 → 415V ac - - DIN Rail - 26.2mm 80mm 69.6mm - - 26.2 x 80 x 69.6mm -
RS Stock No. 917-6535
Mfr. Part No.LT6CT4001
$140.16
Each
units
- - - - - - - 107mm 95mm 25mm - +50°C 107 x 95 x 25mm Maximum of +50 °C
RS Stock No. 890-3742
Mfr. Part No.2905340
$520.32
Each
units
- - 2kV 3 VAL-SEC-T2-3S-350-FM DIN Rail 40kA 97.9mm 49.2mm 74.5mm -40°C +80°C 97.9 x 49.2 x 74.5mm -40 → +80 °C
RS Stock No. 712-5285
Mfr. Part No.2800183
$1,158.06
Each
units
50kA - 250V ac 3 VAL-MS-T1/T2 335/12.5/3+1-FM DIN Rail 12.5kA 99mm 71.2mm 77.5mm -40°C +80°C 99 x 71.2 x 77.5mm -40 → +80 °C
RS Stock No. 776-3830
Mfr. Part No.A9L16617
$494.42
Each
units
10kA Acti 9 - - iPRD DIN Rail - 109.7mm 36mm 72.1mm -5°C +60°C 109.7 x 36 x 72.1mm -5 → +60 °C
RS Stock No. 776-3846
Mfr. Part No.A9L16313
$355.43
Each
units
20kA Acti 9 - - iPRD - - 50mm 12mm 57mm -25°C +60°C 50 x 12 x 57mm -25 → +60 °C
RS Stock No. 712-5272
Mfr. Part No.2800186
$524.02
Each
units
50kA - 250V ac 1 VAL-MS-T1/T2 335/12.5/1+1-FM DIN Rail 12.5kA 99mm 35.6mm 77.5mm -40°C +80°C 99 x 35.6 x 77.5mm -40 → +80 °C
RS Stock No. 890-3746
Mfr. Part No.2906101
$85.26
Each
units
- - ≤1.5kV - BLT-T2-1S-320-UT - 20kA 56mm 36.5mm 34mm -40°C +80°C 56 x 36.5 x 34mm -40 → +80 °C
RS Stock No. 768-1192
Mfr. Part No.2762265
$470.76
Each
units
10kA - - - MT-RS485 DIN Rail 500A 77.5mm 47.6mm 54.9mm -40°C +60°C 77.5 x 47.6 x 54.9mm -40 → +60 °C
RS Stock No. 776-3856
Mfr. Part No.A9L16310
$457.14
Each
units
20kA Acti 9 - - iPRD - - 50mm 12mm 57mm -25°C +60°C 50 x 12 x 57mm -25 → +60 °C
RS Stock No. 122-9478
Mfr. Part No.3RT2926-1CB00
BrandSiemens
$83.52
Each
units
- Sirius Innovation 48 V ac, 70V dc - - - - 11.5mm 18.6mm 30.2mm -25°C +60°C 11.5 x 18.6 x 30.2mm -25 → +60 °C
RS Stock No. 776-3878
Mfr. Part No.A9L16296
$871.92
Each
units
5kA Acti 9 - - iPRD DIN Rail - 94mm 113.6mm 75.9mm -25°C +60°C 94 x 113.6 x 75.9mm -25 → +60 °C
RS Stock No. 817-5323
Mfr. Part No.LAD4DDL
$49.88
Each
units
- - 24 → 250V dc - - - - - - - -25°C +55°C - -25 → +55 °C
RS Stock No. 890-3799
Mfr. Part No.2800907
$77.05
Each
units
- - - - CB E1 24DC/10A NO P - - 90mm 12.3mm 77.3mm -25°C +50°C 90 x 12.3 x 77.3mm -25 → +50 °C
RS Stock No. 712-5276
Mfr. Part No.2800188
$566.15
Each
units
50kA - 250V ac 3 VAL-MS-T1/T2 335/12.5/3+0-FM DIN Rail 12.5kA 99mm 53.4mm 77.5mm -40°C +80°C 99 x 53.4 x 77.5mm -40 → +80 °C
RS Stock No. 776-3887
Mfr. Part No.A9L16293
$1,252.47
Each
units
20kA Acti 9 - - iPRD DIN Rail - 94mm 113.6mm 75.9mm -25°C +60°C 94 x 113.6 x 75.9mm -25 → +60 °C
RS Stock No. 776-3874
Mfr. Part No.A9L16299
$879.62
Each
units
2kA Acti 9 - - iPRD DIN Rail - 94mm 113.6mm 75.9mm -25°C +60°C 94 x 113.6 x 75.9mm -25 → +60 °C
RS Stock No. 890-3708
Mfr. Part No.2905414
$436.24
Each
units
- - 1.2kV 1 FLT-SEC-P-T1-1C-350/25-FM DIN Rail 25kA 95.2mm 35.6mm 74.5mm -40°C +80°C 95.2 x 35.6 x 74.5mm -40 → +80 °C
RS Stock No. 875-1084
Mfr. Part No.3RT2936-1CD00
BrandSiemens
$32.74
Each
units
- Sirius Innovation 127 → 240 V ac, 150 → 250V dc - - - - 29.5mm 30mm 14.4mm -25°C +60°C 29.5 x 30 x 14.4mm -25 → +60 °C
RS Stock No. 890-3736
Mfr. Part No.2905333
$370.86
Each
units
- - 1.8kV 1 VAL-SEC-T2-1S-350-FM DIN Rail 40kA 97.9mm 25.4mm 74.5mm -40°C +80°C 97.9 x 25.4 x 74.5mm -40 → +80 °C