GFLW SF6 Load Break Switch | 12–40.5kV Pole-Mounted LBS

⚡ Reliable Switching Solution for Overhead MV Lines (12–40.5kV)

The GFLW-12/24/40.5 pole-mounted SF6 load break switch is an outdoor, gas-insulated switching device engineered for medium-voltage distribution networks. Built to isolate and interrupt current under normal or lightly loaded conditions, this switch offers compact design, excellent arc-quenching capability, and maintenance-free performance, making it ideal for use on 12kV, 24kV, and 40.5kV overhead power lines.

Designed by IEC 60265-1 and GB 3804, this unit is widely deployed in rural electrification projects, solar/wind power integration, and public utility grid upgrades across Europe, Asia, and the Middle East.

🔧 Technical Parameters

Parameter	Value
Model	GFLW-12/24/40.5
Rated Voltage	12kV / 24kV / 40.5kV
Rated Current	630A
Rated Short-Time Current	16kA / 20kA / 25kA (varies by voltage)
Rated Frequency	50Hz
Rated SF6 Gas Pressure	0.04–0.05 MPa
Insulation Medium	SF6 (sealed, gas-insulated)
Interruption Type	Load Break (non-fault current)
Mechanical Endurance	2000 operations
Protection Class	IP65
Mounting	Pole-mounted with a bracket system

GFLW SF6 Load Break Switch | 12–40.5kV Pole-Mounted LBS

🌟 Product Highlights

Wide Voltage Adaptability
One model supports 12kV, 24kV, and 40.5kV applications with corresponding insulation clearances.
Sealed SF6 Insulated Chamber
Prevents moisture and dust ingress. No external maintenance required for 10+ years.
High Switching Endurance
Over 2000 mechanical operations are supported by a durable linkage system.
Lightweight & Pole-Mountable
Easy integration with existing wooden or concrete poles using galvanized brackets.
Visible Isolation with Safety Lock
Manual and motorized options ensure safe disconnection with an interlock mechanism.

🌍 Use Cases by Voltage Class

12kV Distribution Grids
Used in Southeast Asia and Eastern Europe to sectionalize rural feeders.
24kV Renewable Projects
Common in solar farms in Australia and Spain to disconnect incoming power safely.
40.5kV Public Utility Applications
Deployed in Middle Eastern utilities for MV ring network automation (Jordan, Oman).

💬 Verified Customer Feedback

🔹 George L. – MV Supervisor, Eskom (South Africa)
"Our teams installed 40 units across rural substations. Zero maintenance for 4 years."

🔹 Patrick R. – Procurement Lead, Iberdrola Renewables (Spain)
"We use the 24kV GFLW version across our PV project sites—reliable and safe disconnection."

🔹 Andrew B. – Field Engineer, DEWA (UAE)
"Excellent insulation integrity in desert conditions. Smooth manual and motorized actuation."

🔹 Kim T. – Project Integrator, National Grid Korea
"Compact design fits perfectly on pole lines, even in typhoon-prone areas."

🔹 Sean W. – Grid Developer, Hydro Tasmania (Australia)
"Easy to train technicians on operation—ideal for fast solar grid rollouts."

❓ FAQ – GFLW-12/24/40.5 SF6 Pole-Mounted LBS

• Is this a fault-breaking switch like a circuit breaker?
No. It is a load break switch, suitable for breaking under load but not designed for short-circuit interruption.

• Can it be remotely controlled?
Yes. Motorized versions can be integrated into SCADA systems via RTU.

• Does it require SF6 refilling?
No. It is sealed for life and factory filled—no on-site gas handling required.

• What kind of protection coordination is needed?
Often paired with fuses or vacuum reclosers upstream for full fault protection.

• What’s the life expectancy?
Mechanical life exceeds 2000 operations, and 10+ years in outdoor conditions without maintenance.