Why Choose the Wöhner 33311 Bus Mounted Class J Fuse Holder?
The Wöhner 33311 is a heavy-duty bus mounted Class J fuse holder designed for reliable circuit protection in industrial low voltage power distribution systems. Part of the renowned Wöhner QUADRON® 60Classic range, it is engineered for direct installation onto 60 mm busbar systems, providing a compact and efficient solution for high-current feeder circuits.
Designed to accommodate Class J fuse links rated from 225 A to 400 A (54 × 181 mm), the Wöhner 33311 features a robust 3-pole construction with secure box terminals and top or bottom cable connections. Its direct busbar mounting reduces wiring complexity while ensuring dependable electrical performance in demanding industrial environments.
With a 400 A maximum rating and compatibility with 30 × 10 mm flat busbars and section busbars, the Wöhner 33311 is ideally suited to switchboards, OEM machinery, motor control centres and commercial electrical distribution systems requiring UL Class J fuse protection.
Key Advantages
- Heavy-duty Class J bus mounted fuse holder.
- Rated up to 400 A for industrial feeder circuits.
- Designed for Class J fuse links (225 to 400 A).
- Direct mounting onto 60 mm busbar systems.
- Top or bottom cable connection for installation flexibility.
- Suitable for demanding industrial and commercial electrical applications.
Key Features
- Wöhner QUADRON® 60Classic series.
- 3-pole bus mounted fuse holder.
- Supports Class J fuse links (54 × 181 mm).
- 225 to 400 A fuse range.
- Secure box terminal connections.
- Connection from the top or bottom.
- Suitable for 30 × 10 mm flat and section busbars.
- Complies with IEC 60269 and UL 4248 standards.
Reliable High Current Circuit Protection
Bus mounted fuse holders provide a compact and dependable method of protecting outgoing feeder circuits within industrial electrical distribution systems. Direct mounting onto standard busbars reduces installation time while maintaining excellent electrical performance and mechanical reliability.
The Wöhner QUADRON® 60Classic system is trusted by switchboard manufacturers worldwide for its modular design, high-quality construction and compatibility with modern industrial power distribution requirements.
Typical Applications
- Industrial switchboards.
- Motor control centres.
- OEM machinery.
- Power distribution panels.
- Commercial electrical installations.
- High-current feeder circuits.
