Wound current transformer for indirect measurement of sinusoidal alternating currents up to 100 A. In contrast to the plug-in current transformer, the wound current transformer has 4 screw connections. The primary current as well as the secondary current are connected via terminals. Wound current transformers are suitable for smaller currents for which plug-in current transformers can no longer be used. Therm. Nominal continuous current Icth: 100% IN Therm. Nominal short-time current Ith: 60 x IN, 1 sec. Max. operating voltage Um: 0.72 kV Insulation test voltage: 3 kV Ueff, 50 Hz, 1 min. Nominal frequency: fN: 50 Hz Insulation class: E (120°C) Designation Primary current (A) VA Order number (sec. 5 A) Order number (sec. 1 A) Dimensions (W x H x D) WSK 30 1 5 1719V0010 1719V1010 61 x 75.5 x 35 mm WSK 30 2.5 5 1719V0020 1719V1020 61 x 75.5 x 35 mm WSK 30 5 5 1719V0030 1719V1030 61 x 75.5 x 35 mm WSK 30 10 5 1719V0040 1719V1040 61 x 75.5 x 35 mm WSK 30 15 5 1719V0050 1719V1050 61 x 75.5 x 35 mm WSK 30 20 5 1719V0060 1719V1060 61 x 75.5 x 35 mm WSK 40 1 10 1720V0010 1720V1010 71 x 85.5 x 45 mm WSK 40 2.5 10 1720V0020 1720V1020 71 x 85.5 x 45 mm WSK 40 5 10 1720V0030 1720V1030 71 x 85.5 x 45 mm WSK 40 10 10 1720V0040 1720V1040 71 x 85.5 x 45 mm WSK 40 15 10 1720V0050 1720V1050 71 x 85.5 x 45 mm WSK 40 20 10 1720V0060 1720V1060 71 x 85.5 x 45 mm WSK 40 25 10 1720V0070 1720V1070 71 x 85.5 x 45 mm WSK 40 30 10 1720V0080 1720V1080 71 x 85.5 x 45 mm WSK 40 40 10 1720V0090 1720V1090 71 x 107 x 55 mm WSK 70.6 30 10 1721V0080 1721V1080 61 x 85.5 x 136 mm WSK 70.6 40 10 1721V0090 1721V0090 61 x 85.5 x 136 mm WSK 70.6 50 10 1721V0100 1721V1100 61 x 85.5 x 136 mm WSK 70.6 60 10 1721V0110 1721V1110 61 x 85.5 x 136 mm WSK 70.6 75 10 1721V0120 1721V1120 61 x 85.5 x 136 mm WSK 70.6 80 10 1721V0130 1721V1130 61 x 85.5 x 136 mm WSK 70.6 100 10 1721V0140 1721V1140 61 x 85.5 x 136 mm.