YFGZ16-12

The YFGZ16-12 series isolating indoor AC high-voltage vacuum circuit breaker is a product independently developed and successfully launched by our company. It meets the performance requirements specified in the national standards GB 1984-2014 "High-Voltage AC Circuit Breakers" and IEC 62271, offering key advantages such as a clear isolation break, extended electrical life, capability for frequent operations, compact overall dimensions, and a simple yet reliable "five-protection" interlocking system when integrated into switchgear. This product features either the self-developed CTE2 two-stage transmission spring operating mechanism—or the advanced CTE4 two-stage transmission spring mechanism with pre-charged energy—both of which have earned multiple national invention patents. These mechanisms ensure straightforward and dependable operation, while also providing dual functionality for both manual and electric operation, enabling convenient remote control capabilities.

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Product Description

Product Overview

The YFGZ16-12 series indoor AC high-voltage vacuum circuit breaker is a product independently developed and successfully launched by our company. It meets the performance requirements specified in the national standards GB 1984-2014 "High-Voltage AC Circuit Breakers" and IEC 62271, offering key advantages such as a clear isolation break, extended electrical life, capability for frequent operations, compact overall dimensions, and a simple yet reliable "five-protection" interlocking system when integrated into switchgear.
This product features a self-developed, multi-layered safety protection panel component for electrical equipment—recognized by multiple national invention patents—as well as a CTE4 mechanism equipped with a pre-charged spring system. It offers simple and reliable operation, supports both manual and electric functionality, and enables long-distance control.

Model Description

Main technical specifications

Environmental operating conditions

1. Altitude ≤ 1000 m;
2. Ambient temperature range: -25°C to +40°C;
3. The daily average relative humidity does not exceed 95%, and the monthly average remains below 90%;
4. The surrounding air is not noticeably contaminated by dust, smoke, corrosive and/or flammable gases, vapors, or salt spray;
5. Areas free from fire and explosion hazards;
6. Locations with seismic intensity not exceeding 8 degrees and tilt angles no greater than 5°.
Note: The above outlines the standard operating conditions according to GB/T 11022. For special application environments such as high altitudes, heavy salt spray, or extremely cold or hot conditions, the technical design can be modified and customized based on these requirements.

Structural Features

The various installation methods of this load switch meet customers' diverse application requirements.
A. Installation Methods – Top-entry wiring (straight installation), bottom-entry wiring (reverse installation), and wall-mounted installation with a dedicated wall-mounting mechanism
B. Operation Modes – Side-Panel Operation, Front-Panel Operation

Vacuum circuit breaker

Cabinet Layout Diagram

Example Plan