Wöhner 33750 CT3 current transformer with declaration of conformity, 100 A primary current, 5 A secondary output, 1.5 VA burden and class 0.5 accuracy.
£132.74
The Wöhner 33750, manufacturer part number 33750 000, is a precision 100 A / 5 A current transformer with declaration of conformity, designed for accurate current measurement in compatible QUADRON® 185Power size 00 fuse switch-disconnectors. It features a 1.5 VA rated burden, accuracy class 0.5 and is supplied with an official declaration of conformity for applications where documented compliance is required.
Manufactured in the compact CT3 frame size, the Wöhner 33750 integrates directly into compatible size 00 switch-disconnectors while occupying minimal panel space. Its standard 5 A secondary output is suitable for connection to multifunction power meters, energy monitoring systems and protection relays in commercial and industrial electrical installations.
With class E insulation, a 720 V maximum operating voltage and a 6 kA thermal short-time current rating, this transformer delivers reliable long-term measurement performance in demanding industrial environments.
The Wöhner 33750 converts a primary current of 100 A into a standard 5 A secondary output, enabling accurate monitoring by multifunction meters, energy-management systems and protection relays. Its class 0.5 accuracy provides dependable measurement for applications where improved precision is required.
Unlike the standard 33749 version, the Wöhner 33750 is supplied with a declaration of conformity, making it suitable for projects where national regulations or customer specifications require documented conformity of the measuring transformer.
| Current | 100 A |
|---|---|
| Manufacturer | Wöhner |
| Part number | 33750 000 |
| SKU | 33750 |
| Product type | Current transformer |
| System | 185Power |
| Frame size | CT3 |
| Compatible equipment | QUADRON® 185Power size 00 |
| Primary rated current | 100 A |
| Secondary rated current | 5 A |
| Transformer ratio | 100/5 A |
| Rated apparent power | 1.5 VA |
| Accuracy class | 0.5 |
| Maximum operating voltage | 720 V |
| Thermal short-time current | 6 kA |
| Over-current limitation factor | FS5 |
| Insulation class | E |
| Power dissipation (80% load) | 3.2 W |
| Power dissipation (full load) | 5.0 W |
| Connection type | Double terminal |
| Conductor size | 2.5–4 mm² |
| Suitable for aluminium conductors | No |
| Dimensions (W × H × D) | 44 × 30 × 99 mm |
| Weight | Approx. 0.28 kg |
| Material | Halogen-free |
| Pack quantity | 1 |
| EAN | 4021267337506 |
| ETIM | EC002048 |
| Standards | IEC 61869-1:2007, IEC 61869-2:2012 |
The Wöhner 33750 is a current transformer used to convert a primary current of 100 A into a standard 5 A secondary output for electrical monitoring and metering equipment.
The Wöhner 33750 has a transformer ratio of 100 A / 5 A.
The Wöhner 33750 has the same electrical characteristics as the 33749 but is supplied with an official declaration of conformity for applications requiring documented compliance.
The transformer has an accuracy class of 0.5 with a rated burden of 1.5 VA.
No. The transformer terminals are designed for copper conductors between 2.5 mm² and 4 mm² only.
The Wöhner 33750 complies with IEC 61869-1:2007 and IEC 61869-2:2012.
Wöhner current transformers are trusted by panel builders, electrical engineers and system integrators for delivering accurate current measurement, reliable long-term performance and documented conformity where required.
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