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Advanced Electrical Solutions from GRANSO

Trusted Manufacturer of High Voltage Circuit Breakers, Load Break Switches, Earthing Switches, and Custom Metal Components Since 2010

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About GRANSO

Since its inception in 2010, GRANSO has grown into one of the largest manufacturers of metal parts and high-voltage electrical equipment in China. With an annual output value reaching $60 million, we have established long-term partnerships with renowned brands such as CHNT, DELIXI, and HUAWEI.

Our expertise extends into the field of high-voltage distribution switches, where we deliver reliable, innovative, and internationally compliant solutions for power transmission and distribution systems worldwide.

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Circuit Breaker Mechanism Air Switchgear Air Insulated Equipment SF6 Load Break Switch

Why Choose Us

We combine innovation, quality, and service to deliver unmatched value.

Advanced Scientific Research

Cooperating with industry leaders like CHNT, Delixi, and Huawei to drive innovation and technical excellence.

High Quality Equipment

We produce a wide range of customized and comprehensive metal parts with precision engineering.

Professional Manufacturer

Over 90% self-production rate of parts ensures quality control and supply chain reliability.

One-Stop Service

Excellent pre-sales, in-sales, and after-sales support to meet all your project needs.

Our Products

High-performance electrical components engineered for reliability and safety.

Air Insulated Circuit Breaker

Air Insulated Circuit Breaker

12KV rated, semi-encapsulated structure for eco-friendly switchgear and air-insulated systems (AIS).

  • • 12KV rating
  • • Semi-encapsulated design
  • • Integrated spindle structure
  • • Suitable for AIS applications
RMU Breaker

RMU Breaker

12KV circuit breaker with disconnector, ideal for environmentally friendly switchgear.

  • • 12KV rating
  • • Semi-encapsulated structure
  • • Compact and reliable
  • • Low maintenance
600 Amp 3 Phase Fused Disconnect

600 Amp 3 Phase Fused Disconnect

Ensures on-load connection/disconnection with overcurrent and short-circuit protection.

  • • 600A, 3-phase
  • • On-load operation
  • • Overcurrent protection
  • • Short-circuit protection
SF6 Load Break Switch

SF6 Load Break Switch

High-performance GIS load break switch using SF6 gas insulation for reliability.

  • • SF6 gas insulated
  • • GIS compatible
  • • High dielectric strength
  • • Long service life
Switchgear Enclosure

Custom Switchgear Enclosure

Tailored dimensions with options for component integration and stainless steel construction.

  • • Custom dimensions
  • • Stainless steel available
  • • Component integration
  • • Indoor/outdoor use
HV Disconnect Switch

HV Disconnect Switch

Outdoor high-voltage switch for 10kV and 15kV systems, 50Hz AC.

  • • 10kV / 15kV rating
  • • Outdoor installation
  • • 50Hz AC
  • • Durable design
Operating Mechanism

Operating Mechanism

Precision mechanisms for both air and gas-insulated switchgear systems.

  • • AIS & GIS compatible
  • • Spring-charged operation
  • • High reliability
  • • Low maintenance
Earthing Switch

Earthing Switch

F-unit earth breaker switch for GIS, load switch fuse combination module.

  • • GIS compatible
  • • F-unit design
  • • Fuse combination
  • • Safe grounding
Custom Metal Parts

Custom Metal Parts

Comprehensive range of tailored metal components for electrical and industrial applications.

  • • CNC machining
  • • Stamping & bending
  • • OEM/ODM support
  • • High precision
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2010
Founded
$60M
Annual Output
90%+
Self-Production Rate
15+
Countries Served

Frequently Asked Questions

What is the difference between a load break switch and a circuit breaker?

A load break switch can interrupt normal load current but not fault currents, while a circuit breaker can interrupt both load and fault currents, offering higher protection levels.

Do you offer OEM/ODM services?

Yes, GRANSO provides comprehensive OEM and ODM services for custom switchgear, enclosures, and metal components based on client specifications.

What certifications do your products have?

Our products are manufactured according to international quality standards. We comply with IEC, GB, and other regional standards as required.

How can I request a quote?

You can visit our official website at granso-elec.com and use the "Request a Quote" form, or contact our sales team directly via email or phone.

Get in Touch

Have questions or need a custom solution? Contact us today.

For inquiries, please visit our official website to reach our team.

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