Product

FLN□ (SRM6)-12(C)/630-20 Inflatable cabinet circuit breaker (with isolation belt grounding)

Product Overview This load switch is a special-purpose three-position load switch designed for gas-insulated switchgear. Adopting a rotary blade structure and utilizing arc chutes for arc extinction, it boasts reliable performance, along with excellent insulation and breaking capacity. The product performance complies with the requirements for Class E3-M2 disconnectors specified in GB1985-2004 High-Voltage Alternating-Current Disconnectors and Earthing Switches. Share:

Model and Its Designation

Precautions for Service Environment Conditions
● Altitude: Not exceeding 2000 m; Seismic intensity: Not exceeding Grade 8
● Ambient air temperature: Ranging from -45°C to +50°C. Relative humidity: Daily average not exceeding 95%, monthly average not exceeding 90%
● Not suitable for installation sites with frequent severe vibrations, nor for sites where water vapor, gases, chemically corrosive deposits, salt mist, dust and dirt that obviously affect the mechanism performance exist, as well as sites with fire or explosion hazards
● Rated SF₆ gas pressure: 0.04 MPa. The SF₆ gas complies with the requirements specified in GB/T12022-2014 Industrial Sulfur Hexafluoride
Technical Parameters

Item	Unit	Technical Parameters
Rated Voltage	KV	12
Rated Frequency	Hz	50
Rated Current	A	630
Rated Short-Time Withstand Current	KA	20/25
Rated Peak Withstand Current	KA	50
Rated Short-Circuit Duration	s	4
Rated Short-Circuit Making Current	KA	50
Theoretical Operation	Times	10000
Main Circuit Resistance	μΩ	≤35