Products

The LZZBW-35 Series Outdoor Current Transformers

The LZZBW-35 Series Outdoor Current Transformers (CTs) include LZZBW-35A and LZZBW-35B, designed as fully enclosed epoxy resin casting type, pillar-type structures. They are suitable for 35kV and below AC power systems (50Hz / 60Hz) and are widely applied in energy metering, current measurement, and relay protection. Built with epoxy resin insulation, these transformers are compact, lightweight, weather-resistant, and maintenance-free, ensuring safe and stable performance in outdoor environments.

Type designationService conditon

  • Altitude: ≤ 2500m ·Installation: Outdoor ·Rated Frequency: 50Hz or 60Hz ·Ambient Temperature: -25°C ~ +40°C ·Altitude: ≤1000m ·Pollution Level: Class II or Class III (customizable) ·Secondary Current: 5A or 1A

Construction & Features

  • Epoxy Resin Casting – excellent insulation, UV resistance, and aging resistance. ·Fully Enclosed Outdoor Design – moisture-proof, pollution-resistant, safe for harsh climates. ·Compact & Pillar-Type Structure – reduced footprint, easy installation with base mounting holes. ·High Mechanical Strength – withstands short-circuit thermal and dynamic currents. ·Low Maintenance – long service life without frequent inspections.

Technical Parameters

  • Rated Voltage: 35kV ·Rated Insulation Level: 40.5/95/185kV ·Standards: IEC60044-1, GB1208 ·Accuracy Classes: 0.2(S), 0.5, 10P ·Rated Secondary Output: 10 – 20 VA ·Short-Time Thermal Current (Ith): up to 80kA / 1s ·Rated Dynamic Current (Idyn): up to 160kA

Key Features ·Cast-resin insulation for high reliability ·Fully enclosed design, suitable for harsh environments ·Wide range of accuracy classes to meet metering & protection needs ·Strong short-time thermal & dynamic current capacity ·OEM & customization support for specific project requirements

Product features

  • Fully enclosed epoxy resin casting type, pillar-type structure for outdoors.

  • Suitable for 35 kV and below AC power systems (50 Hz / 60 Hz).

  • Widely used for energy metering, current measurement, and relay protection.

  • Compact, lightweight, weather-resistant, and maintenance-free.

  • Safe and stable performance in outdoor environments

Outline & Mounting Dimensions

The LZZBW 35 Series Outdoor Current Transformers