FLN36-24D SF6 Load Break Switch-Indoor Solution for Safe 24kV Distribution
FLN36-24D SF6 Load Break Switch – Indoor Solution for Safe 24kV Distribution is an indoor high-voltage load switch designed for reliable operation in 24kV medium-voltage power distribution systems. It integrates load switching, circuit isolation, and grounding functions into a compact sealed SF6-insulated enclosure.
With reliable interlocking, stable insulation performance, and flexible manual or electric operation, the FLN36-24D provides safe and efficient control of distribution lines and transformers. It is widely used in RMUs, prefabricated substations, industrial facilities, commercial buildings, residential communities, and cable distribution systems where reliable 24kV switching and protection are required.
Get a QuoteOverview
The FLN36-24D Indoor High-Voltage SF6 Load Switch is designed for reliable load switching, isolation, and protection in 24kV medium-voltage power distribution systems. Its integrated structure combines load switching, circuit isolation, and grounding functions within a sealed SF6-insulated enclosure, providing a compact and dependable solution for indoor switchgear.
With reliable insulation and arc-extinguishing performance, the FLN36-24D is suitable for RMUs, substations, industrial power distribution systems, and transformer protection applications. Its compact design and integrated safety functions make it well suited for medium-voltage installations requiring reliable switching and secure isolation.
Technical Data
| Item | Unit | Parameter | |
| Rated Voltage | kV | 24 | |
| Rated Current | A | 630 | |
| 1-min Power Frequency Withstand Voltage | Phase-to-Phase | kV | 65 |
| Breaker Port | 79 | ||
| Lightning Impulse Withstand Voltage | Phase-to-Phase | 125 | |
| Breaker Port | 145 | ||
| Rated Short-Circuit Making Current (Peak) | kA | 50 | |
| Rated Short-Time Withstand Current | 20 | ||
| Rated Short-Circuit Duration | s | 3 | |
| Mechanical Life of Load Switch | Times | 3000 | |
| Mechanical Life of Grounding Switch | 2000 | ||
Overall and mounting dimensions(mm)
Product Features
The FLN36-24D Indoor High-Voltage SF6 Load Switch combines switching, isolation, and grounding functions in a compact sealed structure, providing reliable control and protection for 24kV indoor power distribution systems.
- Integrated Switching and Grounding
Combines the load switch, isolating switch, and grounding switch within a sealed SF6-insulated epoxy enclosure, simplifying system configuration and improving operational safety. - Reliable Safety Interlocking
Features a natural mechanical interlocking system to help prevent incorrect operation. A safety diaphragm with rear pressure relief provides additional protection in the event of abnormal internal pressure. - Long-Term, Low-Maintenance Operation
The sealed SF6 insulation system provides stable dielectric performance and can support up to 20 years of normal service under specified operating conditions. - Flexible Operating Options
Supports both manual and electric operation. Optional accessories include a shunt trip, overcurrent release, auxiliary switch, and pressure gauge, allowing the switch to be configured for different control and protection requirements.
Typical Applications
The FLN36-24D is designed for 50/60Hz, 24kV indoor AC power systems and can be used in a variety of medium-voltage distribution environments:
- Industrial and Mining Facilities
For load switching and protection of medium-voltage distribution lines and equipment. - High-Rise Buildings
Suitable for compact indoor power distribution systems where reliable switching and isolation are required. - Residential Communities
Used in medium-voltage distribution networks to control and protect distribution transformers and feeder circuits. - Prefabricated Substations
Its compact integrated structure makes it suitable for modular and prefabricated substation installations. - Cable Branch Boxes
Provides reliable load switching, isolation, and grounding for medium-voltage cable distribution systems. - Ring Main Units (RMUs)
Suitable for ring-network distribution systems requiring dependable load switching and safe circuit isolation.
The FLN36-24D is primarily used for switching load currents and controlling and protecting distribution lines and transformers in 24kV indoor power distribution systems.
