Operating Steps：
Power-On Operation: First close the isolating switch, then close the circuit breaker or load switch.
Power-Off Operation: First open the circuit breaker or load switch, then open the isolating switch.

Model Selection：
When selecting an isolating switch, ensure that its rated voltage, rated current, dynamic stability current, and thermal stability current meet the requirements of the application. The primary role of the isolating switch is to disconnect circuits with no load current, allowing for safe maintenance. Before operating the isolating switch, ensure that the circuit breaker has disconnected the circuit.

Use environmental conditions：
1. The upper limit of ambient temperature +40°C, the lower limit -10°C, Note: Allow storage and transportation at-25°C
2. Altitude not more than 1000m
3. Relative humidity: daily average is not more than 95%, monthly average is not more than 90%

4. Water vapor pressure: the daily average is not more than 2.2x 10-3Mpa, the monthly average is not more than1.8 x 10-3Mpa

5. The surrounding air should be free from corrosive or combustible gases, water vapor and other obvious pollution.

Typical Application Scenarios:

• Indoor Switchgear Panels (KYN28, etc.): Integrated as primary isolating units within medium-voltage metal-clad switchgear assemblies.
• Power Plants & Substations: Deployed in 10kV to 40.5kV transformer substations to establish a clear, safe visible break during circuit disconnections.
• Industrial & Mining Enterprises: Used in heavy industrial plant distribution rooms to protect maintenance personnel by safely isolating sections of the power network.
• Municipal Infrastructure & Commercial Complexes: Applied in urban ring main units and indoor distribution stations requiring reliable, space-saving safety isolation.

• Visible Isolation Gap for Maximum Safety: Provides a distinct, reliable physical break in the open position, ensuring absolute safety for technicians performing downstream maintenance.
• Robust Mechanical Interlocking System: Features reliable mechanical interlock provisions to prevent misoperation (such as opening or closing under load), safeguarding both operators and primary assets.
• Low-Resistance Current-Carrying Design: Main contacts and conductive paths are manufactured from high-purity electrolytic copper with silver-plating options, minimizing temperature rise and power loss during continuous full-load operations.
• High-Grade Insulation Performance: Utilizes superior epoxy resin insulators and porcelain components offering high creepage distances, preventing flashovers in confined indoor environments.
• Flexible Installation & Configuration: Available in multiple structural variations (with or without grounding switches) to match diverse switchgear cabinet dimensions and client layouts.

• Comprehensive Voltage Coverage (10kV – 40.5kV): One-stop sourcing platform for all medium-to-high voltage indoor isolation requirements, reducing your supply chain complexity.
• Rigorous Quality Control & Testing: Every disconnecting switch undergoes strict factory inspections, including mechanical endurance tests, voltage withstand tests, and circuit resistance measurements.
• Global Project Experience: Proven track record of supplying robust electrical equipment to power distributors, EPC contractors, and industrial importers across international markets.
• Customization & Engineering Support: Flexible manufacturing capabilities to accommodate special terminal dimensions, custom mounting brackets, or specific seismic and environmental requirements.