station class surge arrester

with gap or not, color: brown or grey

Main Technical Data

Type	Rated voltage (kV)	MCOV (kV)	Max     0.5μs discharge woltage (kV)1	Max   switching surge protective level At classifying current levels (kV)2	Max discharge voltage using an 8/20 current wave (kV)
					1.5kA	3KA	5KA	10KA	20KA	40KA
HDA4-54	54	42	135	100	107	112	117	125	136	151
HDA4-60	60	48	150	111	119	125	130	139	151	168
HDA4-72	72	57	178	132	141	148	154	165	179	199
HDA4-90	90	70	225	166	178	187	195	208	226	251
HDA4-90	90	74	238	176	188	198	206	220	239	265
HDA4-96	96	76	238	176	188	198	206	220	239	265
HDA4-108	108	84	269	199	213	224	233	249	270	300
HDA4-108	108	88	275	203	218	228	238	254	276	306
HDA4-120	120	98	306	235	242	254	265	283	307	341
HDA4-132	132	106	332	254	263	276	287	307	333	370
HDA4-144	144	115	360	276	285	299	312	333	361	402
HDA4-168	168	131	416	319	330	346	360	385	418	464
HDA4-172	172	140	438	336	347	363	379	405	439	488
HDA4-180	180	144	450	345	357	374	390	416	452	502
HDA4-192	192	152	478	365	377	395	412	440	477	531
HDA4-228	228	180	568	436	450	472	492	526	570	634
HDA4-258	258	209	659	526	522	547	570	609	661	735

All above ratings are available with both porcelain housing and polymer housing.