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33294 Wohner current transformer 250 A / 5 A
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.
Why Choose the Wöhner 33294 Current Transformer?
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.
Key Advantages
- High accuracy 250 A / 5 A current transformer.
- Class 0.5 measurement accuracy.
- 2.5 VA rated burden.
- Designed for NH sizes 1 to 3.
- Suitable for industrial metering and monitoring applications.
- Manufactured to IEC 61869 standards.
Key Features
- 250 A primary current.
- 5 A secondary current.
- 2.5 VA burden.
- Accuracy Class 0.5.
- Maximum system voltage 720 V.
- Thermal short-time current 15 kA.
- Insulation class B.
- Designed for NH size 1 to 3 applications.
Accurate Current Measurement for Industrial Power Systems
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.
Typical Applications
- Industrial switchboards.
- Electrical distribution panels.
- Motor control centres.
- Energy monitoring systems.
- Power metering equipment.
- Industrial automation systems.
Technical Specifications
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| 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 |
Frequently Asked Questions
What is the Wöhner 33294 used for?
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.
What accuracy class does the transformer provide?
The transformer is manufactured to Accuracy Class 0.5 with a rated burden of 2.5 VA.
What standards does the Wöhner 33294 comply with?
It complies with IEC 61869-1 and IEC 61869-2 for instrument transformers.
What primary and secondary currents are supported?
The transformer is rated for a 250 A primary current and a 5 A secondary current.
Where is the Wöhner 33294 typically installed?
It is commonly installed within industrial switchboards, power distribution systems and motor control centres for current measurement and monitoring.
Trusted by Electrical Engineers Worldwide
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.
