AC Solid-core Current Transformer
Type CTD-8V / CTD-8H (max 30x80 mm)
• Bus-bar type solid- core current transformer
• Class 0.5 accuracy
• Currents from 150 A to 2500 A
• Up to 10 Bus-bar isolated fixing screws
• Double screw terminals (up to 8-wire connections)
• Sealable terminal block covers
Solid-core current transformer with bus-bar mountng facility.
Rated primary currents from
150 A to 2500 A.
Primary current Secondary current Option
From 150A to 2500A (Refer to the Range Table)
1A (on request)
Operating frequency48 to 62 Hz
Max. system voltage0.72 kV
Rated insulation level3 kV/1 min. @ 50 Hz
Insulation class E (max 75°C)
Short-time current rating
Ith Typical 100 In /1 s
Idyn 2.5 Ith
current Ith is anyway limited by the cable/bus-bar size
Extended current rating Refer to the Range Table
Security factor (FS)≤ 5 (Class: 0.5, 1 and 3)
Standards According to EN60044-1
HousingABS, self-extinguishing: UL 94 V-0
Standard accessoriesTwo terminal block screws.
Ten bus-bar fixing screws.
Ten plastic caps for bus-bar fixing screws.
Two sealable terminal block covers.
Special features1 A secondary current, Tropicalization
Working temperature-25°C to: refer to the Range Table (-13°F to: refer to the Range Table) (R.H. < 90% non condensing @ 40°C)
Storage temperature-30°C to +70°C (-22°F to
158°F) (R.H. < 90% non condensing @ 40°C)
cURus and CSA (150A to 1000A)
Connection Screw type
Cable cross section areaFrom 1.5 to 6 mm2
Min/Max screws tightening torque relevant to terminal block screws: From 1 to 2 Nm Max screws tightening
torque relevant to the cable/bus-bar fixing screws:
Protection degree IP00 (without sealable terminal covers)
IP20 (with sealable terminal block covers + wire terminals)
Bus-bar size Max. 30x80 mm
WeightFrom 450 to 700 g
Rated secondary current5 A or 1 A
Specifications are subject to change without noticeCTD-8VH DS ENG 1503111