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. 768-1192
Mfr. Part No.2762265
HK$2,534.25
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. 735-2799
Mfr. Part No.3TX4490-3G
BrandSiemens
HK$70.89
Each
units
- - - - - - - - - - - - - -
RS Stock No. 712-5276
Mfr. Part No.2800188
HK$4,021.01
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. 875-1080
Mfr. Part No.3RT2936-1BB00
BrandSiemens
HK$78.79
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
RS Stock No. 815-3278
Mfr. Part No.SDSA3650
HK$3,000.05
Each
units
40kA - - 3 - - 10kA 92mm 76mm 67mm -40°C +65°C 92 x 76 x 67mm -40 → +65 °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. 890-3749
Mfr. Part No.2905339
HK$3,058.00
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. 847-3673
Mfr. Part No.278519 & FAZ-XAA-C-110-415VAC
BrandEaton
HK$347.01
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. 712-5285
Mfr. Part No.2800183
HK$5,448.64
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
New
RS Stock No. 211-0188
Mfr. Part No.5SD7444-1
BrandSiemens
HK$11,642.48
Each
units
25kA - - - 5SD - 100kA - - - - - - -
New
RS Stock No. 203-2629
Mfr. Part No.3RT2926-1MR00
BrandSiemens
HK$205.52
Each
units
- - - - - - - - - - - - - -
RS Stock No. 890-3742
Mfr. Part No.2905340
HK$3,455.03
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. 847-3677
Mfr. Part No.102036 & FAZ-XAA-NA110-415VAC
BrandEaton
HK$590.18
Each
units
- - 110 → 230 V dc, 110 → 415V ac - - DIN Rail - 17.5mm 105mm 45mm - - 17.5 x 105 x 45mm -
New
RS Stock No. 211-0189
Mfr. Part No.5SD7461-0
BrandSiemens
HK$845.35
Each
units
25kA - - 1 5SD - 40kA - - - - - - -
RS Stock No. 201-5237
Mfr. Part No.1074739
HK$2,996.67
Each
units
- - - - - - - - - - - - - -
RS Stock No. 890-3733
Mfr. Part No.2905348
HK$1,978.57
Each
units
- - 1.2kV 1 VAL-SEC-T2-1S-175-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
RS Stock No. 735-2793
Mfr. Part No.3TX4490-3J
BrandSiemens
HK$86.33
Each
units
- - - - - - - - - - - - - -
RS Stock No. 890-3809
Mfr. Part No.2905238
HK$2,390.06
Each
units
- - - - CBB 04 2X2RC-PT DIN Rail - 127.8mm 108.5mm 70.8mm -30°C +60°C 127.8 x 108.5 x 70.8mm -30 → +60 °C
RS Stock No. 201-6715
Mfr. Part No.2905344
HK$2,767.33
Each
units
- - - - - - - - - - - - - -
RS Stock No. 190-2019
Mfr. Part No.LV550DI-U4
HK$441.40
Each
units
- - - 3 LV Surface Mount 500A 43mm 36.5mm 24.5mm - - 43 x 36.5 x 24.5mm -
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