Differential transformer Circuit WGC-220x105

The Circutor WGC-220x105 differential transformer (code P10158) is a device designed to provide differential protection in electrical installations with currents of up to 1250 A. This model is distinguished by its high immunity to transient current spikes, which prevents unwanted trips in the system, ensuring safe and reliable operation. It is ideal for integration into distribution boards and other industrial or commercial environments where effective protection against insulation failures is required.

Optimized for distribution boards: This transformer has been designed to facilitate its installation in electrical panels, with traditional mounting options and the ability to be mounted on a DIN rail using an accessory, simplifying its integration into existing electrical systems. Its compact design, with dimensions of 314 x 195 x 54.2 mm, allows for efficient placement in tight spaces.

High immunity to transients: One of the key benefits of the WGC series is its better immunity to transient current spikes, which often cause untimely trips in other differential transformers. This ensures that the system operates stably, minimizing unwanted interruptions in differential protection. The transformer is compatible with WGC series relays, and the sensitivity of the transformer-relay system is automatically adjusted according to the associated relay.

Reliable performance on demand: The Circutor WGC-220x105 is designed to handle extreme conditions with a short-circuit thermal current (Ith) of 1.8 kA for 1 second and a dynamical current (Idyn) of 2.5 Ith, ensuring it can operate smoothly even in overload scenarios. Its permanent thermal resistance of 60 A makes it ideal for high electrical demand environments.

Technical specifications:

• Maximum current: 1250 A.
• Maximum service voltage: 720 V.
• Transformation ratio: 30/0.06 A.
• Dynamical current (Idyn): 2.5 Ith.
• Short-circuit thermal current (Ith): 1.8 kA / 1 s.
• Protection degree: IP20 at terminals according to IEC 60529.
• Dimensions: 314 x 195 x 54.2 mm.
• Weight: 3.9 kg.

Materials and durability: The transformer is made with a self-extinguishing polycarbonate enclosure according to UL 94 V0 standard, ensuring high fire resistance and the durability needed for industrial environments. Its operating range covers temperatures from -20 ºC to +70 ºC, with a relative humidity between 5% and 95%, making it a robust solution adaptable to different environmental conditions.

Standards and safety: It complies with international standards IEC 60664-1, IEC 60664-3, and IEC 60044-1, ensuring its safety and reliability in industrial applications. Additionally, it is designed to operate at a maximum altitude of 2000 meters, maintaining a high level of performance in various electrical network configurations.

System advantages:

• Reliable differential protection with high immunity to transients, ideal for preventing untimely trips.
• Flexible mounting, with the option for installation on a DIN rail or electrical panels via wall mounting.
• Robust design, built with durable and self-extinguishing materials to ensure protection in industrial and commercial environments.

The Circutor WGC-220x105 differential transformer is an efficient and reliable solution for electrical installations requiring advanced differential protection. Its high immunity to transients, ease of installation, and robustness make it an ideal choice for systems up to 1250 A.