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. 712-5276
Mfr. Part No.2800188
HK$5,099.12
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. 768-1192
Mfr. Part No.2762265
HK$3,150.34
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. 875-1080
Mfr. Part No.3RT2936-1BB00
BrandSiemens
HK$130.47
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. 817-5323
Mfr. Part No.LAD4DDL
HK$210.72
Each
units
- - 24 → 250V dc - - - - - - - -25°C +55°C - -25 → +55 °C
RS Stock No. 890-3749
Mfr. Part No.2905339
HK$3,617.75
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. 815-3278
Mfr. Part No.SDSA3650
HK$3,414.12
Each
units
40kA - - 3 - - 10kA 92mm 76mm 67mm -40°C +65°C 92 x 76 x 67mm -40 → +65 °C
New
RS Stock No. 223-7760
Mfr. Part No.7P.22.8.275.0020
BrandFinder
HK$521.42
Each
units
40kA 7P SERIES - 1 7P - 20kA - - - - - - -
RS Stock No. 203-2559
Mfr. Part No.3RT2926-1JK00
BrandSiemens
HK$166.96
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 207-2773
Mfr. Part No.2907845
HK$1,565.08
Each
units
- Surge Protection Plug - - TTC - - - - - - - - -
RS Stock No. 192-0902
Mfr. Part No.370101
BrandABB
HK$1,663.30
Each
units
15kA - - 1 - DIN Rail Mount 40kA 35.6mm 74.6mm 91mm - - 35.6 x 74.6 x 91mm -
New
RS Stock No. 207-2657
Mfr. Part No.1032204
HK$5,204.40
Each
units
- Combination Type 1/2 Protective Device - 3 FLT - 12.5kA - - - - - - -
New
RS Stock No. 223-7770
Mfr. Part No.7P.24.8.275.1020
BrandFinder
HK$1,390.67
Each
units
40kA 7P SERIES - 3 7P - 20kA - - - - - - -
New
RS Stock No. 207-2774
Mfr. Part No.2907847
HK$1,746.82
Each
units
- Surge Protection Plug - - TTC - - - - - - - - -
RS Stock No. 192-0903
Mfr. Part No.381225
BrandABB
HK$1,249.30
Each
units
6kA - - 1 - DIN Rail Mount 10kA 35.6mm 74.6mm 91mm - - 35.6 x 74.6 x 91mm -
RS Stock No. 211-0186
Mfr. Part No.5SD7442-1
BrandSiemens
HK$6,318.88
Each
units
25kA - - - 5SD - 100kA - - - - - - -
New
RS Stock No. 223-7761
Mfr. Part No.7P.22.8.275.1020
BrandFinder
HK$730.09
Each
units
40kA 7P SERIES - 1 7P - 20kA - - - - - - -
New
RS Stock No. 226-1629
Mfr. Part No.5SD7481-1
BrandSiemens
HK$2,317.31
Each
units
- - - - 5SD7 - 15kA - - - - - - -
RS Stock No. 201-6812
Mfr. Part No.2906784
HK$1,716.53
Each
units
- - - - - - - - - - - - - -
RS Stock No. 201-5507
Mfr. Part No.2907874
HK$2,443.53
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 207-2755
Mfr. Part No.2906844
HK$295.29
Each
units
- Surge Protection Device - - TTC - 0.5kA - - - - - - -