FLN36 Indoor 12kv 24kv LBS Medium Voltage SF6 gas insulated Load Break Switch

The load breaker switch is a door-type medium voltage switchgear offering three operational states: closed, open, and grounded. Featuring a fully sealed, reinforced epoxy housing filled with SF6 gas at 0.05 MPa, it utilizes SF6 for insulation and arc extinguishing. The main circuit is epoxy-encapsulated within the housing, ensuring reliable conductivity. With minimal components, it delivers high reliability, maintenance-free operation, and safe, user-friendly performance.

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Application
Usage: High Voltage Switchgear
Material:Epoxy Resin
Specification: 12KV SF6 load break switch

Operating Condition
1.Altitude:≤1000m
2. Ambient temperature:+40°C~10°C
3. The relative humidity should not be more than 95%at+20°C ambient temperature

Technical Parameters

Item Unit Data
Rated voltage KV 12
Rated frequency Hz 50
Rated current A 630
Rated current KA 50
4s rated short time withstand current KA 20
Rated making current KA 50
Rated breaking current  Active load breaking current KA 630
Breaking current loop A 630
Cable charging breaking current A 10
1min power frequency withstand voltage (phase to phase,to earth,fracture) KV 42/48
Lightning impulse withstand voltage (phase to phase,to earth,fracture) KV 75/85
Relative pressure of SF6 gas (20℃ GP) MPa ≤0.04
Rated operating voltage (electric) V AC220,DC220
Rated voltage of shunt release V AC220,DC220
Average opening speed M/S 3.5±1.5
Average closing speed M/S 3.5±1.6
Three-phase points,dosing phase of the same ms ≤3
The main circuit resistance μΩ ≤120
Manual maximum torque N.m ≤160
Phase to phase center distance mm 210±0.5

 

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Technical Support & FAQs

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

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From pre-sales consultation to after-sales service, we offer end-to-end technical support to maximize your project success. Our experts assist with product selection, system integration, troubleshooting, and maintenance, backed by continuous project tracking to keep your operations smooth and efficient.

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We specialize in tailor-made solutions for switchgear and components, designed to fit your unique requirements. Our team collaborates closely with you to develop products optimized for performance, efficiency, and reliability—ensuring they excel in your specific application.

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Quality is embedded at every stage. We rigorously test all materials prior to production and monitor manufacturing processes to ensure product stability. Before shipment, each unit undergoes comprehensive electrical, mechanical, and safety performance tests to comply with industry standards.

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