Current Transformer PCE-LCTB 45/21 (40)

Order no.: PCE-LCTB 45/21 (40)
£ 10.15
£ 12.18
PCE-LCTB 45/21 (40)
price ex. (VAT / delivery)
Delivery time: 1-2 working days
Current Transformer PCE-LCTB 45/21 (40) Series for measuring alternating currents up to 400 A

The current transformers of the PCE-LCTB 45/21 (40) series are used when alternating currents in circuits are too high to be detected directly by measuring devices. The current transformer converts the primary current into a proportionally reduced secondary current, which can be processed by a measuring device. In addition, the current transformer protects connected measuring devices from excessive voltages. The current transformers of the PCE-LCTB 45/21 (40) series can detect primary currents from 50 A to 400 A depending on the model and convert these into a 1 A or 5 A secondary current. In addition, one can select between the accuracy classes 1 and 0.5.

- Primary winding (input): 50 A ... 400 A
- Secondary (output): 1 A / 5 A
- System voltage: max. 720 V
- Accuracy classes: 0.5 / 1
- Frequency: 50 Hz
- IEC/EN 60044-1, BS 3938, IS 2705-1 standards
- Easy installation
- Compact dimensions
Technical specifications
Primary winding (input)50 A ... 400 A
Secondary winding (output)1 A, 5 A
Accuracy classes0.5 - for accurate measurements
1 - for ordinary measurements, for analog gauges
Depth40 mm
Width45 mm
Hole diameterØ 20 mm
Busbar20x10mm
StandardsIEC/EN 60044-1, BS 3938, IS 2705-1
Housing10% glass fiber reinforced polycarbonate, flame retardant according to UV94V-0
Connections2 connections on each side
Heat classE (to 120 °C)
System voltagemax. 720 V
Rated capacity1 VA ... 5 VA
Ambient temperature-20 °C ... +45 °C
Storage temperature-50 °C ... +80 °C
Thermal short-circuit current (I th)40 x In
Dynamic short-circuit current (I dyn)  2.5 x I th
Safety factor5

1 x Current transformer PCE-LCTB 45/21 (40)
1 x User manual