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$2,644.11
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. 712-5276
Mfr. Part No.2800188
HK$4,073.13
Each
units
50kA - 250 V 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 77.5 mm -40 → +80 °C
RS Stock No. 735-2799
Mfr. Part No.3TX4490-3G
BrandSiemens
HK$77.05
Each
units
- - 48 V ac, 70 V dc - - - - - - - - - - -
RS Stock No. 875-1080
Mfr. Part No.3RT2936-1BB00
BrandSiemens
HK$82.94
Each
units
- Sirius Innovation 24 → 48 V ac, 24 → 70 V dc - - Clip On - 29.5mm 30mm 14.4mm -25°C +60°C 29.5 x 30 x 14.4 mm -25 → +60 °C
RS Stock No. 817-5323
Mfr. Part No.LAD4DDL
HK$196.85
Each
units
- - 24 → 250 V dc - - Plug In - - - - -25°C +55°C - -25 → +55 °C
RS Stock No. 890-3749
Mfr. Part No.2905339
HK$3,081.67
Each
units
- - 2 kV 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 74.5 mm -40 → +80 °C
RS Stock No. 815-3278
Mfr. Part No.SDSA3650
HK$2,965.56
Each
units
40kA - 2500 V, 4000 V 3 - Panel 10kA 92mm 76mm 67mm -40°C +65°C 92 x 76 x 67 mm -40 → +65 °C
New
RS Stock No. 202-7073
Mfr. Part No.5SD7464-1
BrandSiemens
HK$3,270.02
Each
units
40kA - 350 V 1 5S DIN rail 20kA - - - - - - -
New
RS Stock No. 201-6200
Mfr. Part No.2906743
HK$1,224.99
Each
units
5kA Surge Protection 50 V 2 TTC DIN Rail 0.5kA - - - - - - -
RS Stock No. 482-1227
Mfr. Part No.1SNA190007R2600
BrandABB
HK$192.99
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 201-6201
Mfr. Part No.2906770
HK$951.65
Each
units
10kA Surge Protection Device 150 V - TTC DIN Rail 0.5kA - - - - - - -
New
RS Stock No. 201-6557
Mfr. Part No.2906811
HK$1,184.50
Each
units
5kA Isolated Signal Circuits 50 V 2 TTC DIN Rail 0.5kA - - - - - - -
RS Stock No. 890-3792
Mfr. Part No.2800906
HK$458.40
Each
units
- - - - CB E1 24DC/8A NO P Plug In - 90mm 12.3mm 77.3mm -25°C +50°C 90 x 12.3 x 77.3 mm -25 → +50 °C
RS Stock No. 712-5282
Mfr. Part No.2800190
HK$1,126.27
Each
units
50kA - 240 V ac - VAL-MS-T1/T2 335/12.5 ST DIN Rail 12.5kA 47mm 17.7mm 67.3mm -40°C +80°C 47 x 17.7 x 67.3 mm -40 → +80 °C
New
RS Stock No. 203-2644
Mfr. Part No.3RT2936-1BD00
BrandSiemens
HK$128.57
Each
units
- SIRIUS 240 → 250 V - 3RT29 Clip-On - - - - - - - -
RS Stock No. 136-3856
Mfr. Part No.1SNA295396R2500
BrandABB
HK$27.70
Each
units
- - 750 V - - DIN Rail - 12mm 34.5mm 50mm -55°C +110°C 12 x 34.5 x 50 mm -55 → +110 °C
RS Stock No. 890-3770
Mfr. Part No.2801220
HK$2,496.09
Each
units
- - ≤850 V - PT-IQ-4X1+F-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
New
RS Stock No. 201-6558
Mfr. Part No.2906840
HK$202.48
Each
units
- Surge Protection Device 200 V - TTC DIN Rail 2.5kA - - - - - - -
New
RS Stock No. 203-3893
Mfr. Part No.3TX7402-3T
BrandSiemens
HK$123.51
Each
units
- SIRIUS 240 → 250 V - 3TX40 - - - - - - - - -
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 70.8 mm -30 → +60 °C
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