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.

STPT2-40KA is the series of Type 2/Class II devices for discharging voltage surges, in accordance with IEC/EN 61643-11. Suitable for the second stage of protection in supply distribution panels in which Type 1 protection devices are installed upstream, or for the first stage of protection in commercial or other applications not exposed to direct lightning strikes and with no external lightning protection system.

Download: Catalogue

RATINGS AND FEATURES

Maximum discharge current (8/20μs): 40kA per phase
Nominal discharge current (8/20μs): 20kA per phase
TNS, TNC, TT and IT networks
Un(L-N/L-L): 48V, 60V, 120/208V, 230/400V, 277/480V, 400/690V & higher
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, UL 1449 4th Ed

CATALOGUE NUMBERS

SP2-30K750V – 83020007	STPT2-40K275V-2PGM – 83020117	STPT2-40K320V-3P – 83020136
SP2-40K-N – 83020000	STPT2-40K275V-2PM – 83020123	STPT2-40K320V-3PM – 83020137
SP2-40K275V – 83020002	STPT2-40K275V-3P – 83020134	STPT2-40K320V-4P – 83020154
SP2-40K320V – 83020003	STPT2-40K275V-3PM – 83020135	STPT2-40K320V-4PG – 83020148
SP2-40K440V – 83020004	STPT2-40K275V-4P – 83020152	STPT2-40K320V-4PGM – 83020149
STPT2-30K750V-1P – 83020100	STPT2-40K275V-4PG – 83020146	STPT2-40K320V-4PM – 83020155
STPT2-30K750V-1PM – 83020101	STPT2-40K275V-4PGM – 83020147	STPT2-40K440V-1P – 83020110
STPT2-30K750V-3P – 83020102	STPT2-40K275V-4PM – 83020153	STPT2-40K440V-1PM – 83020111
STPT2-30K750V-3PM – 83020103	STPT2-40K320V-1P – 83020108	STPT2-40K440V-2P – 83020126
STPT2-40K-N – 83020112	STPT2-40K320V-1PM – 83020109	STPT2-40K440V-2PM – 83020127
STPT2-40K275V-1P – 83020106	STPT2-40K320V-2P – 83020124	STPT2-40K440V-3P – 83020142
STPT2-40K275V-1PM – 83020107	STPT2-40K320V-2PG – 83020118	STPT2-40K440V-3PM – 83020143
STPT2-40K275V-2P – 83020122	STPT2-40K320V-2PGM – 83020119	STPT2-40K440V-4P – 83020156
STPT2-40K275V-2PG – 83020116	STPT2-40K320V-2PM – 83020125	STPT2-40K440V-4PM – 83020157