Electronic VCB | Smart Feeder Automation

Products
Pole-Mounted Switch
Electronic Vacuum Circuit Breaker (VCB)

POLE-MOUNTED SWITCH

Electronic Vacuum Circuit Breaker (VCB)

Standard: IEC 62271-100:2008

The HZW32 series outdoor electronic vacuum circuit breaker with a zero-sequence directional feeder terminal enables local feeder automation without reliance on a central station or communication infrastructure. Utilizing short-circuit/ground fault detection, no-voltage tripping, and adaptive reclosing logic, it adapts to complex distribution networks for selective fault isolation and automatic restoration of healthy sections. This VCB provides on-site line selection, fault location, and isolation for single-phase ground faults.

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Technical Specifications

Rated voltage (kV)	12
Rated current (A)	630/1250
Rated frequency (Hz)	50/60
Operation mode	Manual/automatic
Short-time withstand current (kA)	20/25
Duration of short-time withstand current (s)	4
Rated peak withstand current (kA)	50/63
Power-frequency withstand voltage (kV)	34 (Wet) 42 (Dry)
Lightning impulse withstand voltage (kV)	75
Switch weight (kg)	150
Control and operation function	Remote control is available
Insulation	Vacuum interrupter and compound insulation

Features

Robust Construction: Three-phase independent pillar structure with air insulation and vacuum arc extinction, capable of breaking 20kA short-circuit current up to 30 times.

Flexible Modularity: Adopts a modular design concept with interchangeable electromagnetic/electronic sensor combinations.

Comprehensive Monitoring: Supports analog and status data acquisition, remote signaling anti-shake, and local indication of operating, communication, and fault states.

Advanced Protection: Accurately identifies and quickly isolates short-circuit, ground, and broken line faults.

Intelligent Terminal Functions: Includes line loss collection, feeder automation, communication, positioning, timing and recording, power management, and supports remote maintenance.

High Environmental Adaptability: Suitable for challenging environments including high altitude, high pollution, high condensation, high salt spray, and severe cold regions.

Operating Conditions

Temperature: ±40℃

Pollution Level: IV

Seismic Grade: 8

Altitude: ≤2000m

Relative Humidity: daily average ≤95%, monthly average ≤90%

Installation Environment: Places free from flammable, explosive hazards, or chemical corrosion.

Note: Contact HCRT if a different condition is required. We offer customized solutions as well.