A surge protection device is a device that prevents the transmission of lightning to electrical equipment. The task of this device is to limit and minimize the influence of lightning on surrounding electrical equipment along power lines, signal lines, and metal wires.

STP T12 25 is the series of combined Type 1+2/Class I+II devices for discharging lightning currents and protecting against voltage surges, in accordance with IEC/EN 61643-11. Suitable as the first step of protection in incoming power supply panels and areas with exposure to the atmosphere, where installations are usually provided with an external lightning protection system.

Download: Catalogue

RATINGS AND FEATURES

Lightning impulse current (10/350μs): 25kA per phase
Maximum discharge current (8/20μs): 100kA per phase
Nominal discharge current (8/20μs): 25kA per phase
TNS, TNC and TT networks
Un(L-N/L-L): 230/400V
DIN-rail mountable, plug-in format
Visual and remote end of life indicators
Reversible chassis to allow cable entry from above or below
Mechanically coded cartridges to avoid cartridge replacement errors
Standards: IEC 61643-11, EN 61643-11

CATALOGUE NUMBERS

SP12-100K-N – 83120008	STPT12-25K275V-1PM – 83120153	STPT12-25K275V-3P – 83120158
SP12-25K275V – 83120007	STPT12-25K275V-2P – 83120156	STPT12-25K275V-3PM – 83120159
SP12-50K-2PN – 83120009	STPT12-25K275V-2PG – 83120154	STPT12-25K275V-4P – 83120160
STPT12-100K-N – 83120166	STPT12-25K275V-2PGM – 83120155	STPT12-25K275V-4PG – 83120150
STPT12-25K275V-1P – 83120152	STPT12-25K275V-2PM – 83120157	STPT12-25K275V-4PGM – 83120151
		STPT12-25K275V-4PM – 83120161