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. 735-2799
Mfr. Part No.3TX4490-3G
BrandSiemens
HK$77.05
Each
units
- - - - - - - - - - - - - -
RS Stock No. 768-1192
Mfr. Part No.2762265
HK$2,438.75
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. 712-5276
Mfr. Part No.2800188
HK$3,940.59
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. 817-5323
Mfr. Part No.LAD4DDL
HK$198.70
Each
units
- - 24 → 250V dc - - - - - - - -25°C +55°C - -25 → +55 °C
RS Stock No. 815-3278
Mfr. Part No.SDSA3650
HK$2,965.56
Each
units
40kA - - 3 - - 10kA 92mm 76mm 67mm -40°C +65°C 92 x 76 x 67mm -40 → +65 °C
RS Stock No. 890-3749
Mfr. Part No.2905339
HK$2,905.10
Each
units
- - 2kV 3 VAL-SEC-T2-3C-350-FM DIN Rail 40kA 97.9mm 37.3mm 74.5mm -40°C +80°C 97.9 x 37.3 x 74.5mm -40 → +80 °C
RS Stock No. 875-1080
Mfr. Part No.3RT2936-1BB00
BrandSiemens
HK$82.94
Each
units
- Sirius Innovation 24 → 48 V ac, 24 → 70V dc - - - - 29.5mm 30mm 14.4mm -25°C +60°C 29.5 x 30 x 14.4mm -25 → +60 °C
New
RS Stock No. 202-7073
Mfr. Part No.5SD7464-1
BrandSiemens
HK$3,270.02
Each
units
- - - - - - - - - - - - - -
RS Stock No. 890-3783
Mfr. Part No.2801290
HK$1,327.03
Each
units
- - - - PT-IQ-1X2-TELE-PT DIN Rail 2.5kA 109.3mm 17.7mm 77.5mm -40°C +70°C 109.3 x 17.7 x 77.5mm -40 → +70 °C
New
RS Stock No. 201-5506
Mfr. Part No.2906837
HK$202.48
Each
units
- - - - - - - - - - - - - -
RS Stock No. 890-3786
Mfr. Part No.2801274
HK$2,791.59
Each
units
- - - - PT-IQ-4X1+F-48DC-PT DIN Rail 2.5kA 109.3mm 17.7mm 77.5mm -40°C +70°C 109.3 x 17.7 x 77.5mm -40 → +70 °C
New
RS Stock No. 201-6514
Mfr. Part No.2905346
HK$670.87
Each
units
- - - - - - - - - - - - - -
RS Stock No. 776-3893
Mfr. Part No.A9L16292
HK$4,015.44
Each
units
20kA Acti 9 - - iPRD DIN Rail - 94mm 72mm 75.9mm -25°C +60°C 94 x 72 x 75.9mm -25 → +60 °C
New
RS Stock No. 201-5507
Mfr. Part No.2907874
HK$1,911.98
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 203-2697
Mfr. Part No.3RT2936-1JL00
BrandSiemens
HK$158.95
Each
units
- - - - - - - - - - - - - -
RS Stock No. 136-3872
Mfr. Part No.1SNA295403R2500
BrandABB
HK$73.33
Each
units
- - - - - DIN Rail - 30mm 53.5mm 50mm -55°C +110°C 30 x 53.5 x 50mm -55 → +110 °C
RS Stock No. 179-9701
Mfr. Part No.A9C69250
HK$525.06
Each
units
- Acti 9 - 1 ICNV DIN Rail Mount - 36mm 84.8mm 72mm -25°C +55°C 36 x 84.8 x 72mm -25 → +55 °C
RS Stock No. 890-3764
Mfr. Part No.2905230
HK$3,005.11
Each
units
- - ≤1.5kV 3 PLT-SEC-T3-3S-230-FM DIN Rail 3kA 90mm 35.4mm 74.5mm -40°C +70°C 90 x 35.4 x 74.5mm -40 → +70 °C
RS Stock No. 917-6535
Mfr. Part No.LT6CT4001
HK$686.40
Each
units
- - - - - - - 107mm 95mm 25mm - +50°C 107 x 95 x 25mm Maximum of +50 °C
RS Stock No. 890-3792
Mfr. Part No.2800906
HK$435.48
Each
units
- - - - CB E1 24DC/8A NO P - - 90mm 12.3mm 77.3mm -25°C +50°C 90 x 12.3 x 77.3mm -25 → +50 °C
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