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 T23 20 is the series of combined Type 2+3/Class II+III devices for discharging voltage surges while providing a very fine voltage protection level, in accordance with IEC/EN 61643-11. Suitable as the final stage of protection in panels with Type 2 protection devices installed upstream such as STP T2 40 SPDs. These SPDs should be installed as close as possible to the equipment being protected.

Download: Catalogue

RATINGS AND FEATURES

Maximum discharge current (8/20μs): 20kA per phase
Nominal discharge current (8/20μs): 10kA per phase
Combined voltage pulse Uoc (1.2/50μs): 10kV
TNS, TNC, TT and IT networks
Un(L-N/L-L): 120/208V, 230/400V, 277/480V and 400/690V
PLC friendly solutions (LCF) for Power Line Communications
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

SP23-20K-N – 83230000	STPT23-20K275V-3P-LF – 83230120	STPT23-20K320V-2PGM – 83230113
SP23-20K275V-LF – 83230003	STPT23-20K275V-3P-LFM – 83230121	STPT23-20K320V-2PM – 83230117
SP23-20K320V – 83230002	STPT23-20K275V-4P-LF – 83230136	STPT23-20K320V-3P – 83230122
SP23-20K440V – 83230004	STPT23-20K275V-4P-LFM – 83230137	STPT23-20K320V-3PM – 83230123
STPT23-20K-N – 83230106	STPT23-20K275V-4PG-LF – 83230126	STPT23-20K320V-4P – 83230132
STPT23-20K275V-2P-LF – 83230134	STPT23-20K275V-4PG-LFM – 83230127	STPT23-20K320V-4PG – 83230128
STPT23-20K275V-2P-LFM – 83230135	STPT23-20K320V-1P – 83230102	STPT23-20K320V-4PGM – 83230129
STPT23-20K275V-2PG-LF – 83230110	STPT23-20K320V-1PM – 83230103	STPT23-20K320V-4PM – 83230133
STPT23-20K275V-2PG-LFM – 83230111	STPT23-20K320V-2P – 83230116	STPT23-20K440V-1P – 83230104
	STPT23-20K320V-2PG – 83230112	STPT23-20K440V-1PM – 83230105