40.5kV Handcart Type Indoor SF6 Circuit Breaker
Key attributes
| Brand | ROCKWILL |
| Model NO. | 40.5kV Handcart Type Indoor SF6 Circuit Breaker |
| Rated voltage | 40.5kV |
| Rated normal current | 1250A |
| Rated frequency | 50/60Hz |
| Series | SFM |
Product descriptions from the supplier
Description
Product Overview
Our 40.5kV Indoor SF6 Gas Insulated Circuit Breaker with Handcart is a high-reliability medium-voltage switching device, engineered for safe and efficient operation in indoor power distribution systems. Designed with SF6 gas insulation technology and a convenient handcart structure, it delivers stable performance, easy maintenance, and seamless integration with mainstream switchgear models—ideal for global power infrastructure projects, factories, substations, and industrial facilities. With flexible ratings to meet diverse project needs and optimized for Google search visibility, this circuit breaker is a cost-effective choice for international buyers, contractors, and bulk procurement, with competitive quotations available upon contact.
Core Features
This indoor SF6 gas insulated circuit breaker is specially designed for 30-40.5kV medium-voltage power systems, with core features as follows:
- Handcart-Type Installation: Adopts a convenient handcart structure that enables quick assembly, disassembly, and maintenance, greatly reducing on-site downtime and labor costs for outdoor and indoor deployment.
- SF6 Gas Insulation Performance: Equipped with SF6 gas insulation technology, it delivers superior arc quenching performance and excellent dielectric properties, ensuring long-term operational reliability and effectively preventing overvoltage even under fault switching conditions.
- Flexible Rating Options: Offers a wide range of rated current (630A-2500A) and breaking current (25kA-40kA) options, which can be tailored to match different power load requirements of global projects.
- Wide Switchgear Compatibility: Fully compatible with mainstream switchgear types including KYN61 and ZS3.2 Unigear, enabling seamless integration into existing or new power distribution systems without additional modifications
- Strict Quality & Global Compliance: Manufactured with strict quality control procedures and meets international industry standards, making it highly suitable for cross-border procurement and various global application scenarios.
Key Specifications
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Rated Voltage
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30kV - 40.5kV (adapts to mainstream medium-voltage power systems worldwide)
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Rated Current
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630A - 2500A (flexible options for diverse load requirements)
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Breaking Current
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25kA - 40kA (reliable fault interruption to protect power equipment)
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Installation Type
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Indoor handcart-type (easy to install, maintain, and replace)
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Matching Switchgear Type
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KYN61, ZS3.2 Unigear (seamless integration with common switchgear models)
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Insulation Medium
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SF6 gas (superior arc quenching, excellent dielectric performance, maintenance-free)
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Scope of Application
Ideal for indoor medium-voltage power distribution scenarios that require high reliability and easy maintenance, this 40.5kV SF6 circuit breaker with handcart is widely applicable to global projects including:
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Industrial and mining enterprises (factories, metallurgy, petrochemical, manufacturing)
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Power plants and transformer substations (indoor medium-voltage switching)
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Commercial and municipal facilities (large shopping malls, airports, office buildings)
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Residential area power distribution centers (indoor switchgear rooms)
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New power infrastructure construction and old system upgrading projects
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Handcart-Type Design: Quick installation and disassembly, convenient maintenance, reducing on-site labor and downtime costs.
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SF6 Gas Insulation: Superior arc quenching and dielectric properties, ensuring stable operation and long service life with minimal maintenance.
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Flexible Ratings: 30-40.5kV rated voltage, 630-2500A rated current, 25-40kA breaking current—matches diverse global project requirements.
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Wide Compatibility: Compatible with KYN61, ZS3.2 Unigear switchgear types, enabling seamless integration into existing systems.
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Cost-Effective Procurement: Factory direct supply, competitive quotations for bulk orders, no intermediate links to reduce procurement costs.
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Global Applicability: Complies with international standards, suitable for cross-border procurement and various indoor medium-voltage scenarios worldwide.
Notes:
- Equipped with 58-core socket, flexible hose length: 1200mm
- Equipped with auxiliary switches for test/work position
- Equipped with grounding interlock, stroke: 610mm
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