Product Overview
Outdoor 40.5kV Pole-Mounted Disconnect Switch from a Professional Power Equipment Manufacturer
The outdoor pole-mounted disconnect switch, rated at 40.5kV and 250A, is an apparatus that creates a visible break to isolate circuits carrying high voltage in overhead distribution networks. The switch is built for continuous operation outdoors and is resistant to rain, wind and UV light.
Applications & circuit protection
The disconnect switch is used on aerial poles and towers when isolation of circuits is necessary for maintenance, repair or operational switching.
- Overhead distribution: Isolation of 40.5kV lines.
- Substation feeders: Disconnect for maintenance.
- Rural networks: Reliable and easy pole-mounted switching.
- Utility projects: Provide grid extension and reconstruction.
Construction & operating reliability
The elevated voltage switch employs durable porcelain insulation together with resistant components and thus operates properly for a long time in outdoor conditions.
- High voltage insulators at up to 40.5kV for outdoor application.
- Corrosion-proof parts that provide durability in harsh conditions.
- Good visible separation when the switch operation is open.
- Easy switching using lever or insulated rod.
- Stable construction allowing easy installation for pole mounting.
Technical Parameter
| Parameter | Value |
| Rated voltage | 40.5 kV |
| Rated current | 250 A |
| Rated short-time withstand current | 12.5 kA / 16 kA |
| Rated peak withstand current | 31.5 kA / 40 kA |
| Power-frequency withstand (1 min) | ~95 kV |
| Lightning impulse withstand | ~185 kV |
| Mounting | Outdoor pole mounted |
| Standard | IEC 62271 / GB 1985 |
Breaker Cost & Quotation
Ask for pricing of Pole-Mounted Disconnect Switch. Send your rated current, breaking capacity, and number of pieces needed. Pricing based on volume is applicable to distributor and project orders.
- We provide prompt quotes for standard ratings
- OEM branding at no additional cost
- Export packaging included
Breaker Wiring & Control Connection
The power terminals link the circuit and the switch; the control terminals receive opening/closing signals while auxiliary contacts are utilized. The Pole-Mounted Disconnect Switch comes with the wiring diagrams and terminal markings.
- Main terminals identified by drawing
- Control circuit prepared and tested
- Auxiliary contacts available for signaling
Compare Breaker Options
Select the right breaker for your duty:
| Feature | This Breaker | Alternative |
| Voltage | As specified | Other classes available |
| Breaking | Per model | Higher breaking on request |
| Mechanism | Spring / magnetic per model | Manual or motor operation |
| Mounting | Indoor / outdoor per model | Pole or panel mounting |
Export Markets & Country Compatibility
The Pole-Mounted Disconnect Switch is delivered to utility companies and distributors in regions such as Southeast Asia, the Middle East, Africa, Latin America, and South Asia. The specifications, operational mechanism, and certification all correspond with the market of supply.
Breaker Dimensions, Weight & Packing
The measurement and mass of circuit breakers vary according to the voltage variety and installation system. Outdoor breakers are made light for easy mounting, while indoor circuits have pre-installed fixtures for panel mount installation. The measurements and weight specifications are verified through order drawings.
- Measurement based on model drawings
- Mechanism is locked and poles are safeguarded for the shipment
- Installation kit is provided
Standards & certifications
Obtained in accordance with IEC 62271 and GB 1985, the switch has type test documents for utility and project approvals.
- Standards expected in design: IEC 62271/GB 1985
- Outdoor dielectric strength rating at 40.5kV.
- Mechanical performance tested in repetitive operation.
- Coating against corrosion for coastal and industrial conditions (optional).
OEM & B2B supply support
Subian Electric, an esteemed manufacturer and factory supplier of power equipment, aids utilities, EPC contractors and dealers in making the proper choices when it comes to disconnect switch, samples and quotes.
If you require a different power rating or operating mechanism, please reach out to us with your required voltage, current quantity and destination market for advice.
- You can easily evaluate our samples.
- We have the flexibility to meet different quantities of order needs in utility projects.
- We provide all OEM / ODM services.
- We take care of marking and packaging.
- We support you in your technical documentation and certification needs.
Frequently Asked Questions
What is the 40.5kV disconnect switch used for?
The unit is used to disconnect and isolate high voltage circuits on a pole in order to perform maintenance and switching of lines and equipment while the system is live.
Can it be operated under load?
Basically, no. The disconnect switch works only when the load is absent. Switching under load is done with the help of circuit breaker or with the help of load switches.
What operating mechanisms are available?
The drive can be operated manually with the help of the special insulated rod for operational acts. However, it is possible to discuss additional options for the particular projects during the negotiations.
Do you supply to utilities and contractors?
Yes. Equipment is supplied to electrical utilities, EPC contractors, dealers and OEM consumers with the possibility of ordering all required documentation and samples too.
