3BHL000468R0003 VARISTOR-UNIT 4 kV ACS1000 Air until the beginning of 1999 3BHL000468R0004 VARISTOR-UNIT 3.3 kV ACS1000 Air until the beginning of 1999 3BHL000468R0005 VARISTOR-UNIT 2.3 kV ACS1000 Air until the beginning of 1999 3BHL000468R0006 VARISTOR-UNIT 2.3 kV ACS1000 Water and Air from beginning of 1999 3BHL000468R0007 VARISTOR-UNIT 3.3 kV ACS1000 Water and Air from beginning of 1999 3BHL000468R0008 VARISTOR-UNIT 4 kV ACS1000 Water and Air from beginning of 1999 3BHL000468R9008 VARISTOR-UNIT 4 kV ACS1000 Water and Air from beginning of 1999 / 9.1.20008/GI