Overview
The Bussmann LKN-125 250V is a time-delay renewable fuse link from the Eaton Bussmann series. Rated for 125 amperes at 250 volts AC, this Class H fuse is designed for industrial facilities and factories where circuit protection with coordinated time-delay is required. Each box contains 20 individual fuse links, providing convenient stocking for maintenance teams and system integrators. The LKN-125 is manufactured in the USA and carries UL and CSA approvals, making it suitable for North American electrical systems.
Key Features
- Renewable Design: Fuse link element can be replaced without changing the entire fuse body, reducing downtime and replacement costs
- Class H Rating: Time-delay characteristic provides coordination with motor circuits and inductive loads
- 250V AC Rated: Suitable for 250 VAC industrial and commercial control circuits
- Box of 20: Convenient bulk packaging for maintenance stocking and emergency reserves
- UL and CSA Certified: Meets North American electrical safety standards
- Made in USA: Manufactured by Eaton Bussmann, a leading electrical protection brand
Technical Specifications
- Amperage Rating: 125A
- Voltage Rating: 250V AC
- Fuse Class: Class H
- Speed Characteristic: Time Lag (K5)
- Type: Renewable Fuse Link
- Series: Eaton Bussmann REN (250V)
- Certifications: UL, CSA
- Quantity per Box: 20 units
- Manufacturer: Eaton Bussmann
- Country of Origin: United States
Typical Applications
The Bussmann LKN-125 is used in:
- Industrial facility power distribution and motor circuits
- Factory machinery and equipment protection
- Commercial building electrical systems
- Control panel circuits requiring time-delay coordination
- Replacement and maintenance of renewable fuse systems
- Emergency and standby power circuits
Compatibility & Replacements
Compatible With
- Standard Class H fuse holders and blocks rated for 250V, 125A
- Industrial 250V AC control circuits
- Motor starter assemblies and disconnect switches
- Machinery and equipment designed for LKN-series renewable fuse protection
- Panels and enclosures using time-delay fuse coordination
Replaces / Drop-In Replacement For
- Existing Bussmann LKN-125 renewable fuse links in installed systems
- Other Class H, 125A, 250V time-delay fuse links with identical form factor
- Legacy renewable fuse installations requiring element replacement
Works With
- Class H fuse holders and mounting blocks
- Industrial 250V AC power distribution equipment
- Motor control centers (MCCs)
- Distribution panels and enclosures
- Electrical protection schemes requiring coordinated time-delay response








