Single-pole Modules for IT and TN-C wiring networks Multi-pole Modules for TT and TN-S wiring networks Mechanical status indicator Optional safety reserve indication
Note
IP55 enclosed units with clear lids include the following surge arresters & suppressors
Surge Protection Devices, SPDs (DIN-rail)
Voltage surges, often referred to as spikes or transients are typically caused by switching of fluorescent lights, fuses blowing or nearby lightning activity. The worst voltage spikes are usually caused by lightning strikes and can reach up to 6000V, with current surges of over 3000A. The maximum size of the let-through voltage and current inrush depends on the location within the building's wiring system. BS7671: 2011 Amendment 1 Sections 443 and 534 cover risk assessment and provides guidance on protection of electronic equipment for installation engineers to follow. The fullest information on lightning and surge protection comes from the BSEN 62305 series of standards.
Attribute
Value
Suppressor Type
3 Phase
Maximum Voltage Rating
275 V ac
Mounting Type
Panel Mount
Maximum Surge Current
15kA
Series
OVR
Length
165mm
Depth
100mm
Height
115mm
Dimensions
165 x 100 x 115mm
Minimum Operating Temperature
-40°C
Maximum Operating Temperature
+85°C
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