Chống sét lan truyền cho nguồn AC cấp III, 5kA

Kumwell KZ23.PK2.UN230.ds is a single-phase surge arrester type 3 according to EN 61643-11 and Class III according to IEC 61643-11 suitable for TNS and TNC systems.

It is designed for universal application for protection of all electrical appli-ances connected to L.V. supply system against impulse surge effects. It is possible to supply this arrester for different nominal voltage (different from 230V/50Hz) on a special demand.

The function failure of varistor is indicated by target disconnection of mec-hanical thermal fuse which react to varistor overheating above c. 120°C.

MOV Surge Protection for DC Power
Technical Data		KZ23.PK2.UN230.ds
Nominal Voltage	UN	230 V AC
Max. continuous operating voltage	UC	275 V AC
Nominal discharge current ln (8/20)	In	3 kA (L/N, L/PE)
		5 kA (N/PE)
Combined impulse	Uoc	6 kA (L/N, L/PE)
		10 kA (N/PE)
Voltage Protection level at Uoc	UP	< 1 kV (L/N)
		< 1.2 kV (L/PE)
		< 1.2 kV (N/PE)
Power loss at winding temp. 20 °C		< 0.5 W
Response time	tA	< 25 ns (L/N)
		< 100 ns (L/PE, N/PE)
Recommended back-up fuse		16 A
Temporary overvoltage (TOV)	UT	335V/5 s (L/N)
		1200+UO/200 ms (L/PE)
LPZ		2-3
Protection type		IP20
Operating temperature range		-40°C to + 80°C
Mounting on		Din rail 35 mm