Mid-Mounted Fuse Handcart – Modular Fuse Trolley for Indoor Switchgear Integration
Mid-Mounted Fuse Handcart – Modular Fuse Trolley for Indoor Switchgear Integration is a 12kV withdrawable fuse protection unit designed for indoor metal-enclosed switchgear systems and vacuum circuit breaker panels. It provides a flexible solution for fuse installation, replacement, and protection coordination, enhancing the safety and reliability of medium-voltage power distribution equipment.
Featuring a compact mid-mounted structure, reliable racking mechanism, and mechanical interlocking design, the Fuse Handcart enables convenient operation, quick maintenance, and secure integration with compatible switchgear assemblies. It is widely used in substations, transformer rooms, industrial power systems, and VCB + fuse protection applications requiring efficient fault protection and long-term operational stability.
Get a QuoteOverview
The Mid-Mounted Fuse Handcart is a specialized withdrawable fuse unit designed for 12kV indoor metal-enclosed switchgear systems, especially for applications integrated with vacuum circuit breakers (VCBs). It provides a safe and modular solution for fuse installation, replacement, and protection enhancement within medium-voltage switchgear assemblies.
Featuring a compact mid-mounted structure and flexible withdrawable design, the Fuse Handcart enables convenient maintenance, reliable operation, and efficient integration with VS1, ZN63A(VS1), and other compatible vacuum circuit breaker frames. It is widely used in power distribution cabinets, RMUs, and indoor switchgear systems requiring additional short-circuit protection and operational safety.
Technical Data
| Item | Unit | Parameter | |
| Rated voltage | kV | 12 | |
| Rated current | kA | 100 – 630 | |
| Installation Type | / | Mid-mounted, plug-in, trolley-based | |
| Matching Equipment | VS1, ZN63A indoor VCBs | ||
| Operation | Manual push-pull, racking mechanism | ||
| Safety Standard | GB 3906 / IEC 62271-200 | ||
Overall and mounting dimensions(mm)
Key Features and Advantages
The Mid-Mounted Fuse Handcart combines a compact withdrawable structure with reliable fuse protection technology, providing a safe and flexible solution for 12kV indoor medium-voltage switchgear applications.
- Balanced Mid-Mounted Structure
The mid-mounted design improves mechanical balance inside the switchgear panel, reducing structural stress and enhancing operational stability. - Withdrawable Racking-Type Design
Equipped with a racking mechanism, the handcart allows quick insertion and removal, simplifying installation, maintenance, and fuse replacement procedures. - Mechanical Safety Interlocking System
Built-in interlock mechanisms help prevent incorrect operation and unsafe switching conditions, improving equipment and operator safety. - Fast and Convenient Fuse Replacement
Supports efficient fuse replacement in secondary substations and medium-voltage distribution systems, reducing maintenance time and downtime. - Fully Enclosed Metal Protection Structure
The enclosed metal housing provides enhanced protection and supports safe operation in indoor switchgear environments. - Optional Monitoring and Integration Functions
Available with optional CT/PT installation positions and fuse condition monitoring functions to support advanced protection and intelligent switchgear solutions.
Typical Applications
The Mid-Mounted Fuse Handcart is widely used in various 12kV medium-voltage power distribution applications:
- Indoor 12kV Metal-Clad Switchgear Systems
Designed for integration into indoor switchgear panels requiring compact fuse protection solutions. - Secondary Substations and Transformer Rooms
Provides additional short-circuit protection and reliable fuse coordination for distribution equipment. - Utility Power Distribution Rooms
Suitable for modular switchboards and medium-voltage control systems in utility facilities. - VCB + Fuse Coordinated Protection Systems
Works with vacuum circuit breakers to provide enhanced protection and switching coordination. - Switchgear Upgrade and Retrofit Projects
Suitable for modernization of older oil switchgear and air circuit breaker systems, improving safety and operational reliability.
