The Load Break Disconnector systems developed by Altınsoy Enerji are designed to ensure safe, fast, and fully controlled circuit opening and closing operations in energy distribution infrastructures. Our product range is widely used in medium and low voltage (MV/LV) systems, from industrial facilities and power generation plants to compact substations and modular panel applications. With high breaking capacity, advanced insulation materials, and strong mechanical durability, our switches ensure safe energy interruption even under overload and short-circuit conditions.
Altınsoy Enerji Load Break Switches are manufactured in full compliance with TS EN 60947-3 and IEC 60947-3 standards and their performance is verified through type tests successfully conducted in accredited laboratories. Each model offers key technical advantages such as high temperature resistance, flame-retardant halogen-free structure (V0 class), compact body design, and low maintenance requirements.
Thanks to their advanced internal mechanism, our load break switches provide safe independent control regardless of operator movement during instant switching operations, enhancing both operator safety and system continuity. Our vertical, horizontal, and fuse-type load break switches meet the modern energy infrastructure requirements with features such as high insulation distance, phase-by-phase independent breaking, current transformer integration options and full compatibility with compact panel systems.
Explore Our Product Groups :
Load Break Disconnectors
3D model
Fused Load Break Switch
Separate Disconnector
(NH1 - NH2 - NH3)
Fused Load Break Switch
Simultaneous Disconnector
(NH1 - NH2 - NH3)
Fused Load Break Switch
Parallel Disconnector
(NH1 - NH2 - NH3)
Fused Load Break Switch
Separate Disconnector
(NH00)
Fused Load Break Switch
Simultaneous Disconnector
(NH00)
Load Break Switches Disconnectors
- Vertical Fused Load Disconnectors
Vertical Fused Load Disconnectors are designed for the safe, controlled, and uninterrupted management of power flow in medium-voltage systems. In three-phase AC circuits, they safely disconnect the rated current and protect the system against both overload and short-circuit conditions.
NH fuses, which enable safe disconnection under load, stand out with their fast response time against short-circuit currents. Compared to thermal-magnetic circuit breakers, they interrupt the circuit in a much shorter time, eliminating the risks of deformation and physical injury that may occur due to high short-circuit currents. With a 100 kA breaking capacity, they provide high-level protection while also offering a cost-effective solution.
- Compact Design – Maximum Efficiency
Our Vertical Fused Load Disconnectors are manufactured with options for both independent phase operation and simultaneous opening/closing of all three phases. The desired rated current or operating class can be easily adjusted by replacing the NH knife-type fuses.
All our products are manufactured in full compliance with the TS EN 60947-3 standard and provide long-term operational safety.
Thanks to the compact enclosure design developed by Altınsoy Engineering and the optional current transformer (CT) integration, these disconnectors occupy minimum space inside panels. This offers both easy installation and the advantage of detailed phase-by-phase measurement capability.
- Smart Protection – Fast Response
In short-circuit or overload conditions, only the faulty line is disconnected while the remaining parts of the facility continue operating without interruption. This feature plays a critical role in operational continuity, maintenance efficiency, and overall energy performance.
Each product successfully passes type tests conducted in accredited test laboratories, ensuring long-term operational reliability certified by international standards.
Altınsoy Vertical Fused Load Disconnectors are not only protection devices but also critical safety components that guarantee energy continuity. Every unit is subjected to strict quality control processes and combines precision-engineered metal components with high thermal stability insulation materials.
Wherever safety, efficiency and continuity are priorities in energy infrastructures, the Altınsoy signature carries power into the future.
| Breaking Capacity | 100 kA – High short-circuit withstand |
|---|---|
| Application Category | AC23B, 50/60 Hz |
| Fuse Type | Replaceable NH00–NH3 fuse system |
| Mounting | Vertical body, models with side outlet |
| Operating Class | Independent or simultaneous opening options |
| Standart | TS EN 60947-3 compliant production |
| Optional Feature | Current transformer (CT) integration |
Disconnector Models
| TYPE | PRODUCT DESCRIPTION |
|---|---|
| ALT D-160-1 | NH00 Size 160A Vertical Fused Switch Disconnectors Together Opening |
| ALT D-250-1 | NH1 Size 250A Vertical Fused Switch Disconnectors Together Opening |
| ALT D-250-1Y | NH1 Size 250A Vertical Fused Switch Disconnectors Together Opening (Side Outlet) |
| ALT D-400-1 | NH2 Size 400A Vertical Fused Switch Disconnectors Together Opening |
| ALT D-400-1Y | NH2 Size 400A Vertical Fused Switch Disconnectors Together Opening (Side Outlet) |
| ALT D-630-1 | NH3 Size 630A Vertical Fused Switch Disconnectors Together Opening |
Simultaneous Disconnector Models
| TYPE | PRODUCT DESCRIPTION |
|---|---|
| ALT D-160-3 | NH00 Size 160A DSYA Simultaneous Disconnector |
| ALT D-250-3 | NH1 Size 250A DSYA Simultaneous Disconnector |
| ALT D-250-3Y | NH1 Size 250A DSYA Simultaneous Disconnector (Side Outlet) |
| ALT D-400-3 | NH2 Size 400A DSYA Simultaneous Disconnector |
| ALT D-400-3Y | NH2 Size 400A DSYA Simultaneous Disconnector (Side Outlet) |
| ALT D-630-3 | NH3 Size 630A DSYA Simultaneous Disconnector |
Horizontal Type Fused Load Disconnectors
Altınsoy Enerji Horizontal Type Fused Load Disconnectors are designed for the safe, fast and controlled switching of power flow in energy distribution systems. With their high breaking capacity, compact design and rapid opening–closing mechanism, they stand out in demanding applications.
Thanks to the instant opening–closing feature independent of manual handle movement, operator safety is ensured at the highest level.
All models are manufactured in full compliance with
TS EN 60947-3 / IEC 60947-3 standards and have successfully passed type tests conducted in accredited laboratories.
Key Features of This Product Group:
High breaking capacity (100 kA) enables safe interruption of high fault currents.
Dual separate breaking points provide reliable phase isolation.
V0 flame-retardant and halogen-free material structure ensures long service life and high durability.
Compact design with minimum panel space requirement offers a significant advantage in switchgear applications.
From industrial facilities to energy distribution centers, this product group makes a difference at every point with its safe circuit management, high efficiency and long-term operational durability.
Technical Advantages
| Breaking Capacity | 100 kA – high short-circuit withstand strength |
|---|---|
| Utilization Category | AC 22B, 50/60 Hz |
| Fuse Type | Interchangeable fuse structure from NH00 to NH3 |
| Mounting | Horizontal body, models with vertical connection option |
| Operating Class | Single-pole or simultaneous switching options |
| Material Structure | V0 flame-retardant, halogen-free and RoHS compliant raw material |
| Standard | Manufactured in compliance with TS EN 60947-3 / IEC 60947-3 |
| Optional Feature | Current transformer integration and panel handle adjustment |
Horizontal Fused Load Disconnectors
Altınsoy Enerji Horizontal Fused Load Disconnectors stand out in power distribution systems with their high breaking capacity, compact design and fast switching mechanism. Thanks to the snap-action independent of manual operation, operator safety is increased to the highest level.
All models are manufactured in full compliance with TS EN 60947-3 / IEC 60947-3 standards and have successfully passed all type tests conducted in accredited laboratories.
This product group offers:
High breaking capacity (100 kA) for safe current interruption,
Secure phase isolation with two separate breaking points,
V0 class flame-retardant and halogen-free material structure,
Compact design providing minimum space requirement in panels.
From industrial facilities to power distribution centers, it delivers safe circuit control, high efficiency and long-term operational durability at every level of the energy infrastructure.
Technical Advantages
| Breaking Capacity | 100 kA – high short-circuit withstand capability |
|---|---|
| Utilization Category | AC 22B, 50/60 Hz |
| Fuse Type | Interchangeable fuse structure from NH00 to NH3 |
| Mounting | Horizontal body, models with optional vertical connection |
| Operating Class | Separate or simultaneous switching options |
| Material Structure | V0 flame-retardant, halogen-free and RoHS compliant material |
| Standard | Manufactured in compliance with TS EN 60947-3 / IEC 60947-3 |
| Optional Feature | Current transformer integration and panel handle adjustment |