Wöhner 33294 current transformer with 250 A primary current, 5 A secondary current, 2.5 VA burden and Class 0.5 accuracy for industrial electrical distribution systems.
£76.83
The Wöhner 33294 is a precision current transformer (CT) designed for accurate current measurement and monitoring in low voltage electrical distribution systems. Manufactured by Wöhner for industrial switchgear applications, this transformer converts a primary current of 250 A to a standard secondary current of 5 A, making it suitable for metering, monitoring and protection equipment.
Engineered to comply with IEC 61869-1 and IEC 61869-2, the Wöhner 33294 delivers reliable measurement accuracy with a Class 0.5 rating and a 2.5 VA burden. Its compact design enables straightforward integration into compatible Wöhner power distribution systems used by panel builders and OEM machine manufacturers.
Designed for NH sizes 1 to 3, this current transformer is ideal for industrial switchboards, motor control centres and electrical distribution panels requiring dependable current measurement for energy management and protective relays. Although this specific model is no longer supplied, it remains widely referenced for maintenance and replacement purposes.
Current transformers reduce high primary currents to standard secondary values that can be safely measured by meters, monitoring equipment and protection relays. This enables accurate system monitoring without exposing measuring instruments to high operating currents.
The Wöhner 33294 provides dependable measurement performance for industrial power distribution systems, helping engineers monitor energy usage, detect abnormal operating conditions and support effective electrical system protection.
| Current | 250 A |
|---|---|
| Manufacturer | Wöhner |
| Model | 33294 |
| Product type | Current transformer |
| Primary current | 250 A |
| Secondary current | 5 A |
| Rated burden | 2.5 VA |
| Accuracy class | 0.5 |
| Maximum operating voltage | 720 V |
| Thermal short-time current | 15 kA |
| Insulation class | B |
| Suitable for | NH sizes 1 to 3 |
| Standards | IEC 61869-1, IEC 61869-2 |
| Dimensions (W × H × D) | 49 × 27 × 70 mm |
| Weight | Approx. 280 g |
The Wöhner 33294 is a current transformer used to convert a primary current of 250 A into a standard 5 A secondary current for metering and protection equipment.
The transformer is manufactured to Accuracy Class 0.5 with a rated burden of 2.5 VA.
It complies with IEC 61869-1 and IEC 61869-2 for instrument transformers.
The transformer is rated for a 250 A primary current and a 5 A secondary current.
It is commonly installed within industrial switchboards, power distribution systems and motor control centres for current measurement and monitoring.
Wöhner current transformers are trusted by switchboard manufacturers and electrical engineers for providing accurate current measurement, dependable performance and reliable integration into industrial power distribution systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...